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Timing Belt - XL (per foot)
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Price: $6.64
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Availability: Back Order
Sparkfun Item #: ROB-12156 -

"These are resistant XL sized timing belts that fit snug inside of the Actobotics timing pulleys. Each belt is made out of neoprene with fiberglass cords running its length to provide a fair ammount of strength and durability. The timing belts have a width of 3/8", a length of 12", and a 1/5P. Note: This belt is sold by the foot in custom lengths. No returns will be accepted for custom cut lengths. Dimensions: Length - 12" Width - 3/8" Pitch - 1/5 Documents: Product Page (615152) Product Video...

Hub Adapter - 1.50" to 0.77"
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Price: $8.74
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Sparkfun Item #: ROB-12199 -

"This hub adapter lets you connect Actobotics parts with a 0.77" hub pattern to parts with a 1.5" hub pattern. The holes for the 1.5" pattern alternate between tapped and untapped, whereas the inner 0.77" hole pattern is all un-tapped. These adapters are ideal for mounting two different hub patterns: mating hubs to gears, sprockets, or wheels. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two...

Smooth Belt - 1/8"D (3.5" ID)
Price: $1.14
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12130 -

"These smooth (round) belts have a Durometer hardness of A70 and can withstand temperatures from -35 to 250 degrees F. Their elastic nature allows them to apply tension on the pulleys when stretched and the rubber construction creates excellent grip characteristics between the pulley and belt. Smooth belts can be used in a variety of applications including follow focus systems, linear drives, 90 degree drives, XY tables, robot tracks, battery hold-downs, etc. Actobotics is a robotics building...

Smooth Belt - 1/8"D (4.0" ID)
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Price: $1.30
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Sparkfun Item #: ROB-12116 -

"These smooth (round) belts have a Durometer hardness of A70 and can withstand temperatures from -35 to 250 degrees F. Their elastic nature allows them to apply tension on the pulleys when stretched and the rubber construction creates excellent grip characteristics between the pulley and belt. Smooth belts can be used in a variety of applications including follow focus systems, linear drives, 90 degree drives, XY tables, robot tracks, battery hold-downs, etc. Actobotics is a robotics building...

Timing Pulley - Shaft Mount (10T; 6mm Bore)
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Price: $12.05
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Sparkfun Item #: ROB-12490 -

"These shaft-mountable aluminum timing pulleys use XL timing belts and attach to a 6mm output shaft with a set screw. They have 10 teeth with a gear pitch of 1/5P, an outer diameter of 0.6”, a bore of 6mm, and requires a belt width of 3/8”. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together....

Set Screw Hub - 5mm Bore
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Price: $8.21
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Availability: Back Order
Sparkfun Item #: ROB-12404 -

"Set screw hubs offer a cheap way to attach hub mount gears or wheels to a shaft. The hub offers 4 equally spaced 6-32 tapped holes utilizing the 0.77" hub pattern and is precision machined from 6061 T6 aluminum. The set-screw is 10-32 and uses a 3/32” hex key. This hub has a 5mm bore. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components...

Pulley - Hub Mount (1.0"; 0.5" Bore)
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Price: $11.09
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Availability: Back Order
Sparkfun Item #: ROB-12523 -

"These hub-mountable aluminum pulleys can be used to drive wheels or other pulleys with ¼” or ⅛” belts. They have an outer diameter of 1.125”, a bore of 0.50”, and utilizes the 0.77” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of...

Set Screw Hub - 1/4" Bore
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Price: $8.21
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Availability: Back Order
Sparkfun Item #: ROB-12488 -

"Set screw hubs offer a cheap way to attach hub mount gears or wheels to a shaft. The hub offers 4 equally spaced 6-32 tapped holes utilizing the 0.77" hub pattern and is precision machined from 6061 T6 aluminum. The set-screw is 10-32 and uses a 3/32” hex key. This hub has a ¼" bore. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics...

Bearing Mount - Flat (1/4" Bore)
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Price: $9.86
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Availability: Back Order
Sparkfun Item #: ROB-12328 -

"These flat bearing mounts attach to the face of a channel or plate and have a ball bearing with a 1/4” bore for shafts. They can be used in conjunction with angle brackets to be mounted inside channels or in other configurations. These bearing mounts have a width of 1.31”, a thickness of 0.20”, a 0.25” bore bearing, and utilize the 1.5” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball...

Bearing Mount - Flat (1/2" Bore)
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Price: $11.50
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Sparkfun Item #: ROB-12502 -

"These flat bearing mounts attach to the face of a channel or plate and have a ball bearing with a 1/2” bore for shafts. They can be used in conjunction with angle brackets to be mounted inside channels or in other configurations. These bearing mounts have a width of 1.31”, a thickness of 0.20”, a 0.50” bore bearing, and utilize the 1.5” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball...

Bearing Mount - Flat (3/8" Bore)
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Price: $10.68
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Availability: Back Order
Sparkfun Item #: ROB-12260 -

"These flat bearing mounts attach to the face of a channel or plate and have a ball bearing with a 3/8” bore for shafts. They can be used in conjunction with angle brackets to be mounted inside channels or in other configurations. These bearing mounts have a width of 1.31”, a thickness of 0.20”, a 0.375” bore bearing, and utilize the 1.5” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and...

Bearing Mount - Flat (5/8" Bore)
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Price: $12.33
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Availability: Back Order
Sparkfun Item #: ROB-12554 -

"These flat bearing mounts attach to the face of a channel or plate and have a ball bearing with a 5/8” bore for shafts. They can be used in conjunction with angle brackets to be mounted inside channels or in other configurations. These bearing mounts have a width of 1.31”, a thickness of 0.20”, a 0.625” bore bearing, and utilize the 1.5” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and...

Bearing Mount - Flat Wide (1/2" Bore)
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Price: $11.50
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Sparkfun Item #: ROB-12379 -

"These wide flat bearing mounts attach to the face of a channel or plate and have a ball bearing with a 1/2” bore for shafts. They can be used in conjunction with ServoBlock kits or in other configurations. These bearing mounts have a length of 1.69”, a width of 1.31”, a thickness of 0.20”, and a 1/2” bore bearing. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two...

Bearing Mount - Pillow Block (1/2" Bore)
Price: $11.50
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12362 -

"Pillow block bearing mounts attach to the outside of a channel and can be used as simple hinges. These bearing mounts have a width of 1.32”, a thickness of 0.25”, a 0.50” bore bearing. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building...

Bearing Mount - Pillow Block (1/4" Bore)
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Price: $9.86
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Availability: Back Order
Sparkfun Item #: ROB-12333 -

"Pillow block bearing mounts attach to the outside of a channel and can be used as simple hinges. These bearing mounts have a width of 1.32”, a thickness of 0.25”, a 0.25” bore bearing. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building...

Bearing Mount - Pillow Block (3/4" Bore)
Price: $13.15
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12110 -

"Pillow block bearing mounts attach to the outside of a channel and can be used as simple hinges. These bearing mounts have a width of 1.32”, a thickness of 0.25”, a 0.75” bore bearing. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building...

Bearing Mount - Pillow Block (5/8" Bore)
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Price: $12.33
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Availability: Back Order
Sparkfun Item #: ROB-12541 -

"Pillow block bearing mounts attach to the outside of a channel and can be used as simple hinges. These bearing mounts have a width of 1.32”, a thickness of 0.25”, a 0.625” bore bearing. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building...

Bearing Mount - Pillow Block Square (1" Bore)
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Price: $16.44
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Availability: Back Order
Sparkfun Item #: ROB-12282 -

"These square pillow block bearing mounts attach to the inside of a channel and have a ball bearing with a 1” bore for shafts and tubes. These bearing mounts have a width of 1.32”, a thickness of 0.33”, a 1” bore bearing. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide...

Bearing Mount - Quad Block (1/4" Bore)
Price: $10.68
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12510 -

"Quad block bearing mounts attach to the inside of a channel and have a ball bearing with a 1/4” bore for shafts. These bearing mounts have a width of 1.32”, a thickness of 0.25”, a 0.25” bore bearing, and utilize the 0.77” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively...

Bearing Mount - Quad Block (3/8" Bore)
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Price: $11.50
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Availability: Back Order
Sparkfun Item #: ROB-12146 -

"Quad block bearing mounts attach to the inside of a channel and have a ball bearing with a 3/8” bore for shafts. These bearing mounts have a width of 1.32”, a thickness of 0.25”, a 0.375” bore bearing, and utilize the 0.77” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively...

Bearing Mount - Quad Block (5/8" Bore)
Price: $13.15
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12468 -

"Quad block bearing mounts attach to the inside of a channel and have a ball bearing with a 5/8” bore for shafts. These bearing mounts have a width of 1.32”, a thickness of 0.25”, a 0.625” bore bearing, and utilize the 0.77” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively...

Cable Carrier - 10x15mm (0.5m Length)
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Price: $18.07
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Availability: Back Order
Sparkfun Item #: ROB-13207 -

"No, this isn’t a tank tread, this is a 0.5m long Cable Carrier with 10x15mm bits composing its main body and two screw fasteners at each end for efficient mounting. Sometimes called a “drag chain,” each carrier can be used in projects with a large number of moving parts to protect internally installed cables, pipes, or tubes so they can be bent and moved while remaining protected. Cable carriers can most commonly been found in 3D printers and CNC machines but they can be...

Chain - Delrin (0.25" x 12")
Price: $11.50
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12465 -

"These plastic chains come in 1ft lengths preassembled with 48 individual and snapable bits, they have a tensile strength of 55 lbs, and 0.25” tooth spacing. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex electromechanical prototypes or...

Clamping Hub - 1" Bore (Flat)
Price: $24.67
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12099 -

"These flat aluminum clamping hubs are perfect for heavy duty applications that need shafting or tubing 1" in diameter secured safely. These clamping hubs have a 1" bore, an outer diameter of 1.967", four ¼-20 tapped holes, four ¼" through holes, and one ¼-20 machine screw for tightening. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all...

Clamping Hub - 1/4" Bore
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Price: $13.15
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Availability: Back Order
Sparkfun Item #: ROB-12238 -

"These clamping hubs are a great and cost-effective choice when attaching hub mount gears or wheels to shafts or tubes and can be a better option than set screw hubs if you don’t want to risk damaging whatever you need clamped. These clamping hubs have a ¼" bore, four 6-32 tapped holes, one 6-32 machine screw for tightening, and utilizes the 0.77" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball...

Clamping Hub - 4mm Bore
Price: $13.15
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12455 -

"These clamping hubs are a great and cost-effective choice when attaching hub mount gears or wheels to shafts or tubes and can be a better option than set screw hubs if you don’t want to risk damaging whatever you need clamped. These clamping hubs have a 4mm bore, four 6-32 tapped holes, one 6-32 machine screw for tightening, and utilizes the 0.77" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings....

Clamping Hub - 6mm Bore
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Price: $13.15
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Availability: Back Order
Sparkfun Item #: ROB-12264 -

"These clamping hubs are a great and cost-effective choice when attaching hub mount gears or wheels to shafts or tubes and can be a better option than set screw hubs if you don’t want to risk damaging whatever you need clamped. These clamping hubs have a 6mm bore, four 6-32 tapped holes, one 6-32 machine screw for tightening, and utilizes the 0.77" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings....

Clamping Hub - 90 Degree (5/8" Bore)
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Price: $14.79
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Availability: Back Order
Sparkfun Item #: ROB-12249 -

"These 90° clamping hubs provide a great way to attach a 5/8” diameter tube or shaft to a ½" diameter hub. These clamping hubs have a 5/8" diameter bore for shaft connection, a ½" diameter bore for hub connection, four 6-32 tapped holes, four 6-32 through holes, two 6-32 machine screw for tightening, and utilizes the 0.77" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to...

Gear - Hub Mount (128T; 1.0" Bore)
Price: $27.96
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12239 -

"These hub-mountable aluminum gears are ideal for transmitting motion from a motor or servo to a wheel or shaft. These gears have 128 teeth with a gear pitch of 32P, an outer diameter of 4.063”, a bore of 1”, and utilizes the 1.5” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected...

Gear - Hub Mount (64T; 0.5" Bore)
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Price: $21.38
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Availability: Back Order
Sparkfun Item #: ROB-12265 -

"These hub-mountable aluminum gears are ideal for transmitting motion from a motor or servo to a wheel or shaft. These gears have 64 teeth with a gear pitch of 32P, an outer diameter of 2.063”, a bore of 0.50”, and utilizes the 0.77” and 1.5" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively...

Gear - Hub Mount (72T; 0.5" Bore)
Price: $21.38
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12368 -

"These hub-mountable aluminum gears are ideal for transmitting motion from a motor or servo to a wheel or shaft. These gears have 72 teeth with a gear pitch of 32P, an outer diameter of 2.312”, a bore of 0.50”, and utilizes the 0.77” and 1.5" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively...

Gear - Hub Mount (76T; 0.5" Bore)
Price: $21.38
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12430 -

"These hub-mountable aluminum gears are ideal for transmitting motion from a motor or servo to a wheel or shaft. These gears have 76 teeth with a gear pitch of 32P, an outer diameter of 2.488”, a bore of 0.50”, and utilizes the 0.77” and 1.5" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively...

Gear - Hub Mount (76T; 1.0" Bore)
Price: $21.38
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12256 -

"These hub-mountable aluminum gears are ideal for transmitting motion from a motor or servo to a wheel or shaft. These gears have 76 teeth with a gear pitch of 32P, an outer diameter of 2.488”, a bore of 1”, and utilizes the 1.5” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected...

Gear - Hub Mount (80T; 0.5" Bore)
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Price: $21.38
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Availability: Back Order
Sparkfun Item #: ROB-12261 -

"These hub-mountable aluminum gears are ideal for transmitting motion from a motor or servo to a wheel or shaft. These gears have 80 teeth with a gear pitch of 32P, an outer diameter of 2.563”, a bore of 0.50”, and utilizes the 0.77” and 1.5" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively...

Gear - Hub Mount (84T; 0.5" Bore)
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Price: $21.38
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Availability: Back Order
Sparkfun Item #: ROB-12228 -

"These hub-mountable aluminum gears are ideal for transmitting motion from a motor or servo to a wheel or shaft. These gears have 84 teeth with a gear pitch of 32P, an outer diameter of 2.688”, a bore of 0.50”, and utilizes the 0.77” and 1.5" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively...

Gear - Hub Mount (84T; 1.0" Bore)
Price: $21.38
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12206 -

"These hub-mountable aluminum gears are ideal for transmitting motion from a motor or servo to a wheel or shaft. These gears have 84 teeth with a gear pitch of 32P, an outer diameter of 2.688”, a bore of 1”, and utilizes the 1.5” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected...

Gear - Pinion Gear (16T; 0.25" Bore)
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Price: $21.38
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Availability: Back Order
Sparkfun Item #: ROB-12158 -

"These pinion gears attach to a ¼” D-shaft or gear motor using a setscrew. They have 16 teeth with a gear pitch of 32P, an outer diameter of 0.563”, and a bore of 0.25”. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex...

Gear - Pinion Gear (16T; 6mm Bore)
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Price: $21.38
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Availability: Back Order
Sparkfun Item #: ROB-12248 -

"These pinion gears attach to a 6mm D-shaft or gear motor using a setscrew. These gears have 16 teeth with a gear pitch of 32P, an outer diameter of 0.563”, and a bore of 6mm. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex electromechanical...

Gear - Pinion Gear (24T; 0.25" Bore)
Price: $21.38
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12225 -

"These pinion gears attach to a ¼” D-shaft or gear motor using a setscrew. They have 24 teeth with a gear pitch of 32P, an outer diameter of 0.813”, and a bore of 0.25”. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex...

Gear - Pinion Gear (24T; 6mm Bore)
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Price: $21.38
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Availability: Back Order
Sparkfun Item #: ROB-12418 -

"These pinion gears attach to a 6mm D-shaft or gear motor using a setscrew. These gears have 24 teeth with a gear pitch of 32P, an outer diameter of 0.813”, and a bore of 6mm. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex electromechanical...

Gear - Pinion Gear (32T; 0.25" Bore)
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Price: $21.38
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Availability: Back Order
Sparkfun Item #: ROB-12476 -

"These pinion gears attach to a ¼” D-shaft or gear motor using a setscrew. They have 32 teeth with a gear pitch of 32P, an outer diameter of 1.063”, and a bore of 0.25”. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex...

GoPro Hero 2 Camera Mount
Price: $16.44
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12467 -

"These GoPro camera mounts provide you with a simple and lightweight way to attach your Hero or Hero 2 to you Actobotics project. Each camera mount can be mounted in any direction and can be attached to any channel, hub mount, or servo block that utilizes the 0.77" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be...

Hub - Quad D Mount (90 Degree)
Price: $9.86
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12349 -

"Quad hub mounts attach to the inside of a channel at a 90 degree angle providing you with additional attachment points for the open top of a channel. These mounts have a width of 1.32”, a thickness of 0.25”, a 0.50” bore bearing, and utilize the 0.77” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can...

Hub - Set Screw (3mm Bore)
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Price: $11.50
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Availability: Back Order
Sparkfun Item #: ROB-12104 -

"These set screw hubs make it capable to connect a micro gearmotor with a 3mm bore to a precision disk wheel or other object with a 0.77" hub pattern that needs to be rotated. These hubs have an outer diameter of 1", a bore of 3mm, a 6-32 set screw, and utilizes the 0.77" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be...

Hub Adapter - 0.77" to 0.77"
Price: $8.21
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12372 -

"This hub adapter lets you connect Actobotics parts with a 0.77" hub pattern to parts with a 0.77" hub pattern. The hole alternate between tapped and untapped, which makes mating two components easy. These adapters are ideal for mounting two different hub patterns: mating hubs to gears, sprockets, or wheels. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all...

Hub Adapter - 1.50" to 1.50"
Price: $6.57
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12129 -

"This hub adapter lets you connect Actobotics parts with a 1.5" hub pattern to parts with a 1.5" hub pattern. The hole alternate between tapped and untapped, which makes mating two components easy. These adapters are ideal for mounting two different hub patterns: mating hubs to gears, sprockets, or wheels. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all...

Hub Arm - Single (3")
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Price: $18.09
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Availability: Back Order
Sparkfun Item #: ROB-12519 -

"These aluminum single servo hub arms can bolt directly to the aluminum hub on servo power gearboxes via four 6-32 x 3/8" machine screws. Each double hub arm has a length of 3” and utilizes the 0.77” hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components...

Hub Mount - 90 Degrees
Price: $8.21
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12102 -

"These 90 degree hub mounts mate directly to Actobotics channels in multiple positions and are useful as attachment points for shafts and tubes with a 0.5" diameter. Each hub mount has two 0.5" bores and utilize the 0.77" hub pattern. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of...