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Servo - Hitec HS-422 (Standard Size)
Price: $42.7685
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Availability: Stocked
Sparkfun Item #: ROB-11884 -

This is the classic Hitec HS-422 servo. This solid consumer grade servo is able to take in 6 volts and deliver 57 oz-in. of maximum torque at 0.16 sec/60°, this is a simple servo for any beginner project! This high quality servo is perfect for your mechatronic needs and if you are looking to get into robotics, this is where to start. The HS-422 servo comes standard with a 3-pin power and control cable and all hardware listed below. Includes: 1x HS-422 Servo 1x Circle Horn 1x Double Arm Horn 1x...

Servo - Hitec HS-425BB (Standard Size)
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Price: $48.6642
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Availability: Back Order
Sparkfun Item #: ROB-11883 -

This is the versatile Hitec HS-425BB servo. This little guy is able to take in 6 volts and deliver 57 oz-in. of maximum torque at 0.16sec/60°, this is a great servo even if you are on a budget! This high quality servo is perfect for your mechatronic needs and if you are looking to get into robotics, this is where to start. The HS-425BB servo comes standard with a 3-pin power and control cable and all hardware listed below. Includes: 1x HS-425BB Servo 1x Circle Horn 1x Double Arm Horn 1x Single...

Servo - Hitec HS-625MG (Standard Size)
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Price: $74.2157
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Sparkfun Item #: ROB-11885 -

This powerful motor is the Hitec HS-625MG servo. This is one of the strongest metal gear servos that is available and at a great price. The HS-625MG is able to take in 6 volts and deliver 94 oz-in. of maximum torque at 0.15sec/60°, and those are numbers you can rely on! This high quality servo is perfect for your mechatronic needs and if you are looking to get into robotics, this is where to start. The HS-625MG servo comes standard with a 3-pin gold plated power and control cable and all...

Servo - Hitec HS-646WP (Standard Size)
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Price: $99.7673
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Availability: Back Order
Sparkfun Item #: ROB-11886 -

This unique motor is the Hitec HS-646WP servo. What separates this servo from the rest is that it is waterproof with a IP67 (Ingress Protection-67) rating! The HS-646WP is able to take in an impressive 7.4 volts and deliver 161.1 oz-in. of maximum torque at 0.17 sec/60°, and those are numbers you can rely on! This high quality servo is perfect for your mechatronic needs and if you are looking to get into robotics, this is where to start. The HS-646WP servo comes standard with a 3-pin gold...

Servo - Hitec HS-755HB (1/4 Scale)
Price: $90.1715
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Availability: Stocked
Sparkfun Item #: ROB-12625 -

This powerhouse is the Hitec HS-755HB servo. Able to take in 6 volts and deliver an impressive 183 oz-in. of maximum torque at 0.23 sec/60°, this is a tough 1/4 scale servo and it won;t let you down when you need it! This high quality servo is perfect for your mechatronic needs and if you are looking to get into robotics, this is where to start. The HS-755HB servo comes standard with a 3-pin gold plated power and control cable and all hardware listed below. Includes: 1x HS-755HB Servo 1x...

Servo - Hitec HS-805BB (Giant Scale)
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Price: $92.7987
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Availability: Back Order
Sparkfun Item #: ROB-11881 -

This beast is the Hitec HS-805BB servo. Able to take in 6 volts and deliver an impressive 343 oz-in. of maximum torque at 0.14 sec/60°, this is a heavy duty servo and is not to be taken lightly! This high quality servo is perfect for your mechatronic needs and if you are looking to get into robotics, this is where to start. The HS-805BB servo comes standard with a 3-pin power and control cable, Y-harness, and all hardware listed below. Note: This servo can draw around 800mA, so keep that in...

Servo - Hitec HS-85MG (Micro Size)
Price: $69.5699
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Availability: Out of Stock
Sparkfun Item #: ROB-11887 -

This is the epitome of the phrase "appearances can be deceiving," and trust us, with the Hitec HS-85MG that couldn't be more true. The HS-85MG is able to take in 6 volts and deliver 49 oz-in. of maximum torque at 0.14sec/60°, and this guy is only about the size of a bottle cap! This high quality servo is perfect for your mechatronic needs and if you are looking to get into robotics, this is where to start. The HS-85MG servo comes standard with a 3-pin power and control cable and all hardware...

Servo Expansion Board for Onion Omega
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Price: $30.1973
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Availability: Back Order
Sparkfun Item #: DEV-14445 -

The Servo Expansion Board adds 16 PWM (Pulse Width Modulation) outputs to your Omega. With this expansion, you will be able to get started with your project quickly by connecting standard servos directly to the onboard 3-pin connectors. You can use this little board for anything with moving parts, such as robotics or driving DC motors. You can also make a light show with LEDs by controlling their brightness! Each Servo Expansion Board has a built-in oscillator that is used to generate PWM...

Servo Extension - CAT6 (non-boosted)
Price: $14.8432
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Availability: Out of Stock
Sparkfun Item #: ROB-12176 -

This “non-boosted” servo extension board allows up to four different servos to be plugged into it and transfer data up to through a common CAT6 cable before being converted back into servo pin-outs on another extension board (sold separately). This non-boosted servo extension board simply allows you to use a CAT6 cable to transmit your servo signals and power. It is limited to around 8 feet. If you want to transmit longer distances, couple it with a boosted adapter (check below). Actobotics is...

Servo Extension Cable - Female to Male (Shrouded)
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Price: $5.3605
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Availability: Back Order
Sparkfun Item #: ROB-15808 -

This is a 12 inch servo extension cable that comes in handy when your servo is further away from the controller than the wire on the servo allows. The male connector on one end goes to controller, while the female connector mates with servo. Fits all Hitec, Futaba, JR, Multiplex, and Airtronics Z servos. Wire can also be used as a simple 0.1" jumper cable. Documents: Datasheet ...

Servo Gear - Futaba (20T; Metal)
Price: $27.8513
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Availability: Out of Stock
Sparkfun Item #: ROB-12184 -

These servo gears are made specifically to fit a Futaba 3F servo spline, allowing you to mate other gears to your servo. They have 20 teeth with a gear pitch of 32P, an outer diameter of 0.688”, and utilize the 3F Futaba servo spline. 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...

Servo Gear - Hitec (20T; Metal)
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Price: $27.8513
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Availability: Back Order
Sparkfun Item #: ROB-12142 -

These servo gears are made specifically to fit a Hitec C1 servo spline, allowing you to mate other gears to your servo. They have 20 teeth with a gear pitch of 32P, an outer diameter of 0.688”, and utilize the C1 Hitec servo spline. 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...

Servo Hub - Standard (Hitec Standard)
Price: $10.6942
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Availability: Out of Stock
Sparkfun Item #: ROB-12443 -

These hubs are ideal for attaching wheels, gears, or any heavy duty servo horns directly to your C1 Hitec servo spline. These aluminum servo hubs have a diameter of 1”, a width of 0.25”, 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 components...

Servo Shaft Coupler - Hitec Standard
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Price: $10.6942
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Availability: Back Order
Sparkfun Item #: ROB-12501 -

These couplers allow you to connect a 1/4” shaft directly to your C1 Hitec servo spline. The set screw included with each shaft coupler works well with straight or d-shafts. These servo shaft couplers have a length of 0.5”, an outer diameter of 0.42”, and an inner diameter 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...

ServoBlock Kit - Hitec Standard (Hub Shaft)
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Price: $50.1508
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Availability: Back Order
Sparkfun Item #: ROB-12347 -

ServoBlocks increase a servo’s load-bearing capabilities by helping to isolate the lateral load from the servo spline and case. The extreme versatility of ServoBlocks allow users to create complex, extremely rigid, structures with ease using standard Hitec servos. The 1/2” aluminum hub shaft provides multiple mounting options using 6-32 screws. The robust 6061 T-6 aluminum framework acts as a servo exoskeleton, greatly enhancing the mechanical loads the servo can withstand. Our new .770” hub...

Set Screw Hub - 1/4" Bore
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Price: $10.6942
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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 1/4" 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 can be...

Shadow Chassis
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Price: $23.8095
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Sparkfun Item #: ROB-13301 -

The Shadow Chassis is a marvelously durable and modular robot platform from RobotZone. The chassis plates and mounts are cut from ABS plastic and utilize the Actobotics 0.77" and 1.50" hub patterns for sensors, controllers, power, etc. Simply snap each panel together and you'll be able to attach your motors and favorite robotics controller. With the included "snap on” micro-controller mounts, you can attach an Arduino, Raspberry Pi, SparkFun RedBoard, or SparkFun RedBot Mainboard! This kit...

Shaft - D-Shaft (Stainless; 1/4"D x 9.00"L)
Price: $8.1211
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Availability: Out of Stock
Sparkfun Item #: ROB-12483 -

These 9" long stainless steel D-Shafts have a diameter of 1/4". The flat edge that runs the length of the shaft makes it an ideal drive shaft, when used with a gear, pulley, or even a shaft coupler. Features: Length - 9” Diameter - 1/4” Flat Edge Width - 0.16"

Shaft - Solid (Stainless; 1/2"D x 7"L)
Price: $11.7662
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Availability: Out of Stock
Sparkfun Item #: ROB-12466 -

These 7" long stainless steel shafts have a diameter of 1/2". These shafts are solid, which makes them an ideal choice for axles. These shafts have a Rockwell Hardness rating of 8 Note: For a drive-shaft, check out d-shafts instead. Features: Length - 7” Diameter - 1/2”

Shaft - Solid (Stainless; 1/8"D x 1"L)
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Price: $1.1078
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Sparkfun Item #: ROB-12322 -

These 1" long stainless steel shafts have a diameter of 1/8". These shafts are solid, which makes them an ideal choice for axles. These shafts have a Rockwell Hardness rating of 8 Note: For a drive-shaft, check out d-shafts instead. Features: Length - 1” Diameter - 1/8”

Shaft - Solid (Stainless; 3/16"D x 2"L)
Price: $1.9655
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Availability: Out of Stock
Sparkfun Item #: ROB-12439 -

These 2" long stainless steel shafts have a diameter of 3/16". These shafts are solid, which makes them an ideal choice for axles. These shafts have a Rockwell Hardness rating of 83B. Note: For a drive-shaft, check out d-shafts instead. Features: Length - 2” Diameter - 3/16”

Shaft - Solid (Stainless; 3/8"D x 12"L)
Price: $10.9408
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Availability: Out of Stock
Sparkfun Item #: ROB-12141 -

These 12" long stainless steel shafts have a diameter of 3/8". These shafts are solid, which makes them an ideal choice for axles. These shafts have a Rockwell Hardness rating of 83B. Note: For a drive-shaft, check out d-shafts instead. Features: Length - 12” Diameter - 3/8”

Shaft - Solid (Stainless; 5/16"D x 2"L)
Price: $2.3319
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Availability: Out of Stock
Sparkfun Item #: ROB-12126 -

These 2" long stainless steel shafts have a diameter of 5/16". These shafts are solid, which makes them an ideal choice for axles. These shafts have a Rockwell Hardness rating of 83B. Note: For a drive-shaft, check out d-shafts instead. Features: Length - 2” Diameter - 5/16”

Shaft - Solid (Stainless; 5/16"D x 5"L)
Price: $4.9049
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Availability: Out of Stock
Sparkfun Item #: ROB-12484 -

These 5" long stainless steel shafts have a diameter of 5/16". These shafts are solid, which makes them an ideal choice for axles. These shafts have a Rockwell Hardness rating of 83B. Note: For a drive-shaft, check out d-shafts instead. Features: Length - 5” Diameter - 5/16”

Shaft - Solid (Stainless; 5/16"D x 6"L)
Price: $5.7625
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Availability: Out of Stock
Sparkfun Item #: ROB-12402 -

These 6" long stainless steel shafts have a diameter of 5/16". These shafts are solid, which makes them an ideal choice for axles. These shafts have a Rockwell Hardness rating of 83B. Note: For a drive-shaft, check out d-shafts instead. Features: Length - 6” Diameter - 5/16”

Shaft - Solid (Stainless; 5/16"D x 9"L)
Price: $8.3355
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Availability: Out of Stock
Sparkfun Item #: ROB-12302 -

These 9" long stainless steel shafts have a diameter of 5/16". These shafts are solid, which makes them an ideal choice for axles. These shafts have a Rockwell Hardness rating of 83B. Note: For a drive-shaft, check out d-shafts instead. Features: Length - 9” Diameter - 5/16”

Shaft Coupler - 1/4" to 1/4"
Price: $10.6942
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Availability: Out of Stock
Sparkfun Item #: ROB-12251 -

These stainless steel shaft couplers allow you to couple two size shafts together. They can be used for connecting motor shafts to drive shafts, or two different-sized shafts. These shaft couplers have a length of 0.75”, a outer diameter of 0.42”, and couple 1/4” to 1/4” shafts. 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...

Shaft Coupler - 1/4" to 1/8"
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Price: $10.6942
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Availability: Back Order
Sparkfun Item #: ROB-12244 -

These stainless steel shaft couplers allow you to couple two size shafts together. They can be used for connecting motor shafts to drive shafts, or two different-sized shafts. These shaft couplers have a length of 0.75”, a outer diameter of 0.42”, and couple 1/4” to 1/8” shafts. 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...

Shaft Coupler - 1/4" to 3/8"
Price: $10.6942
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Availability: Out of Stock
Sparkfun Item #: ROB-12477 -

These stainless steel shaft couplers allow you to couple two size shafts together. They can be used for connecting motor shafts to drive shafts, or two different-sized shafts. These shaft couplers have a length of 0.75”, a outer diameter of 0.60”, and couple 1/4” to 3/8” shafts. 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...

Shaft Coupler - 1/4" to 5mm
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Price: $10.6942
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Availability: Back Order
Sparkfun Item #: ROB-12325 -

These stainless steel shaft couplers allow you to couple two size shafts together. They can be used for connecting motor shafts to drive shafts, or two different-sized shafts. These shaft couplers have a length of 0.75”, a outer diameter of 0.42”, and couple 1/4” to 5mm shafts. 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...

Shaft Coupler - 1/4" to 6mm
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Price: $10.6942
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Availability: Back Order
Sparkfun Item #: ROB-12211 -

These stainless steel shaft couplers allow you to couple two size shafts together. They can be used for connecting motor shafts to drive shafts, or two different-sized shafts. These shaft couplers have a length of 0.75”, a outer diameter of 0.42”, and couple 1/4” to 6mm shafts. 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...

Shaft Spacer - 1"
Price: $3.6184
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Availability: Out of Stock
Sparkfun Item #: ROB-12193 -

These plastic shaft spacers have an inner diameter of 1” and a thickness of 1/16”. These spacers are ideal for spacing out an area between a bearing and a shaft collar to reduce metal to metal contact. Features: ID - 1" Width - 1/16”

Shaft Spacer - 5/8"
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Price: $3.6184
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Availability: Back Order
Sparkfun Item #: ROB-12269 -

These plastic shaft spacers have an inner diameter of 5/8” and a thickness of 1/16”. These spacers are ideal for spacing out an area between a bearing and a shaft collar to reduce metal to metal contact. Features: ID - 5/8" Width - 1/16”

Silicone Bumpers - Large (10x16.5mm, 4 pack)
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Price: $2.0102
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Availability: Back Order
Sparkfun Item #: COM-10594 -

Rubber feet raise your PCB or project up off your desk. This helps prevent short circuiting from bits of scrap wire floating about or setting a project down on a conductive surface. They also prevent your enclosure or PCB from sliding around. They can also be used as feet for enclosures. These are self-adhesive and 16.5mm in diameter and about 10mm tall. They taper to roughly 12mm at the top. They come in a set of 4.

Skate Wheel Adapter - Shaft Connection
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Price: $10.8100
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Availability: Stocked-NoBackOrder
Sparkfun Item #: ROB-12329 -

These skate wheel adaptors have a diameter of 1”, a width of 0.32”, and utilize the 0.77” hub pattern. These adaptors allow you to attach the 2.975” or 4.90” skate wheels to ¼” drive shafts. 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...

Slide Pot - Motorized (10k Linear Taper)
Price: $45.0455
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Availability: Stocked
Sparkfun Item #: COM-10976 -

These motorized sliders are very cool. Each is essentially a standard slide pot which is belt-driven by a small motor. The slide contains two separate 10k linear taper potentiometers so that you can use one as servo-feedback in order to read the position of the slider and use the other to control whatever your target is. There is also a touch sense line which is electrically connected directly to the metal slider tab so that you can interface the slider with capacitive touch circuitry....

Slip Ring - 12 Wire (2A)
Price: $35.6471
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Availability: Out of Stock
Sparkfun Item #: ROB-13065 -

This is a 12 wire slip ring, a remarkably simple electromechanical assembly that allows electronic signals to be passed through its rotating innards. Commonly, you'd find slip rings in wind turbines, radar antennae, or anything else that requires continuous 360° rotation while maintaining an electrical connection. This particular slip ring provides you with a compact body with gold-on-gold alloy fiber brush to plated ring contacts inside. Each Slip ring is capable of handling a continuous...

Slip Ring - 3 Wire (10A)
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Price: $53.5154
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Availability: Back Order
Sparkfun Item #: ROB-13063 -

This is a 3 wire slip ring, a remarkably simple electromechanical assembly that allows for electronic signals and power to be passed through its rotating innards. Commonly, you'd find slip rings in wind turbines, radar antennae, or anything else that requires continuous 360° rotation while maintaining an electrical connection. This particular slip ring provides you with a compact body with precious metal alloy fiber brush to silver plated ring contacts inside. We like using these slip rings to...

Slip Ring - 6 Wire (2A)
Price: $26.7130
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Availability: Out of Stock
Sparkfun Item #: ROB-13064 -

This is a 6 wire slip ring, a remarkably simple electromechanical assembly that allows electronic signals to be passed through its rotating innards. Commonly, you'd find slip rings in wind turbines, radar antennae, or anything else that requires continuous 360° rotation while maintaining an electrical connection. This particular slip ring provides you with a compact body with gold-on-gold alloy fiber brush to plated ring contacts inside. Each Slip ring is capable of handling a continuous...

Small Stepper Motor
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Price: $15.0522
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Availability: Back Order
Sparkfun Item #: ROB-10551 -

These small steppers are a great way to get things moving, especially when positioning and repeatability is a concern. When using a current limiting driver such as the Easydriver or Big Easydriver, a 12 volt power supply can be used as long as you adjust the current level to 400mA or less. If using a non current limited driver (like a L293D or an H-bridge) you will need to lower your input voltage to keep the motor current below 400mA. This is a Bipolar motor. Features: Stride Angle (degrees)...

Smooth Belt - 1/8"D (12" ID)
Price: $10.2654
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Availability: Out of Stock
Sparkfun Item #: ROB-12446 -

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 (14" ID)
Price: $10.6942
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Availability: Out of Stock
Sparkfun Item #: ROB-12152 -

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 (5.0" ID)
Price: $3.6184
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Availability: Out of Stock
Sparkfun Item #: ROB-12508 -

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 (5.5" ID)
Price: $4.4760
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Availability: Out of Stock
Sparkfun Item #: ROB-12235 -

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 (6.5" ID)
Price: $4.9049
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Availability: Out of Stock
Sparkfun Item #: ROB-12420 -

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...

Solenoid - 12V (Latch / Lock)
Price: $17.7789
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Availability: Out of Stock
Sparkfun Item #: ROB-15324 -

Does controlling door and cabinet access with the power of Electromagnetism interest you? Excellent! In effect, this latch / lock solenoid is an electronic lock. When powered with 12VDC source, the latch is pulled in, allowing movement. Without power, the latch is extended, blocking movement and your secret drawer is safe and secure. This Solenoid Latch comes with a mounting bracket which can be removed with two screws. Once removed the solenoid can be rotated 180 and remounted. Paired with a...

Solenoid - 36v
Price: $34.2125
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Availability: Stocked
Sparkfun Item #: ROB-10391 -

Solenoids are a great way to induce linear motion for pushing, pulling or controlling switches and levers. According to the datasheet this solenoid is rated for 36V but they work like a charm at 12V. We've been controlling them with the Arduino Power Driver Shield, there's even some example code below. With a throw of 10mm these solenoids are great for all kinds of motion applications such as actuating door latches, automating percussion instruments or just poking people. At 12 volts these...

Solenoid - 5V (Small)
Price: $8.9355
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Availability: Stocked
Sparkfun Item #: ROB-11015 -

Solenoids are a great way to induce linear motion for pushing, pulling or controlling switches and levers. This smaller solenoid is designed to work directly with 5V which makes it a great match for embedded projects. It has a throw of about 4.5mm and 2 M2 mounting holes on the body. The wire lead is about 2" long and is terminated with a 2-pin JST PH connector. Note: The mounting holes on this solenoid are actually 1.6mm in diameter. This will allow you to tap for an M2 screw. Also, although...