Encoders

Wheel encoders and disks for robot drive systems

An encoder is used to measure rotational speed of motors or wheels.

For light based encoders a series of markings or holes are made around the rotating disk that are used to break a light beam or change reflectivity that is detected using an infrared sensor.

Magnetic based encoders use a disk with alternating magnetic orientation as markings around it that are read by a Hall effect sensors.

 As the wheel rotates these markings or magnetic changes can be counted and computed against time to determine the rotational speed.

Encoders can be supplied fixed to motors or as separate items for adding to anything that rotates.

Magnetic Encoder Disc for 20D mm Metal Gearmotors, OD 9.7 mm, ID 2.0 mm, 20 CPR (Bulk)

Code: SKU-003904

These magnetic discs can be used with our 20D mm metal gearmotors (extended motor shaft versions only) as part of a quadrature encoder system that offers 20 counts per revolution.

$0.95

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Back orders:
Ship 1255 units in 7 days

Magnetic Encoder Disc for Micro Metal Gearmotors, 12 CPR (Bulk)

Code: SKU-003309

These magnetic discs can be used with our micro metal gearmotors with extended motor shafts as part of a quadrature encoder system that offers 12 counts per revolution. Appropriate Hall Effect sensors, such as those in our magnetic encoder pair kits , are required to complete the system.

$0.95

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Back orders:
Ship 1040 units in 7 days

Magnetic Encoder Disc for Mini Plastic Gearmotors, OD 9.7 mm, ID 1.5 mm, 12 CPR (Bulk)

Code: SKU-003903

These magnetic discs can be used with our mini plastic gearmotors (extended motor shaft versions only) as part of a quadrature encoder system that offers 12 counts per revolution.

$0.95

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Back orders:
Ship 2445 units in 7 days

Magnetic Encoder Pair Kit for Micro Metal Gearmotors, 12 CPR, 2.7-18V (old version)

Code: SKU-003308

Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft.

$10.95

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Back orders: 0 available

Magnetic Encoder Pair Kit for Mini Plastic Gearmotors, 12 CPR, 2.7-18V

Code: SKU-003720

Add quadrature encoders to your mini plastic gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft.

$10.95

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Back orders:
Ship 251 units in 7 days

Magnetic Encoder Pair Kit with Side-Entry Connector for Micro Metal Gearmotors, 12 CPR, 2.7-18V

Code: SKU-005909

Add quadrature encoders to your micro metal gearmotors ( extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft.

$9.95

Order As Required

Back orders:
Ship 437 units in 7 days

Magnetic Encoder Pair Kit with Top-Entry Connector for Micro Metal Gearmotors, 12 CPR, 2.7-18V

Code: SKU-005908

Add quadrature encoders to your micro metal gearmotors ( extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft.

$9.95

Order As Required

Back orders:
Ship 465 units in 7 days

Optical Encoder Pair Kit for Micro Metal Gearmotors, 3.3V

Code: SKU-003301

Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit consisting of two sensor boards, two 3-tooth encoder wheels, and two 5-tooth encoder wheels.

$10.95

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Back orders:
Ship 122 units in 7 days

Optical Encoder Pair Kit for Micro Metal Gearmotors, 5V

Code: SKU-003300

Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit consisting of two sensor boards, two 3-tooth encoder wheels, and two 5-tooth encoder wheels.

$10.95

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Back orders:
Ship 135 units in 7 days

Pololu 42 x 19mm Wheel and Encoder Set

Code: MEC-30009

This set contains includes two 42 x 19 mm wheels, two matching extended brackets and two encoders. With the addition of two micro metal gear motors it forms a complete differential drive system for small robot with encoder feedback. Buy as a set and save!

$50.95

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Back orders: 0 available