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Rotary encoders use an internal coded disc and a sensing head to sense the rotary position, useful in motion sensing applications such as machine tooling and multi-axis positioning. Incremental encoders output pulses that track relative position; absolute encoders output a value, retained through a power cycle.
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Rotary Encoders
Category Selection
- JTEKT Light Duty Incremental Encoders (Quadrature)
- Lika Light Duty Incremental Encoders (Quadrature)
- JTEKT Medium Duty Incremental Encoders (Quadrature)
- Lika Electronic Medium Duty Incremental Encoders (Quadrature)
- JTEKT Heavy Duty Incremental Encoders (Quadrature)
- JTEKT Medium Duty Absolute Encoders (Gray Code)
- Lika Electronic Rotary Measuring Wheel Encoders
Rotary encoders are essential components in many modern systems, providing accurate and reliable position and motion feedback. They offer various output types, each with their own advantages, the most common types are:
- Open-collector output: Each output channel has a transistor that is turned on or off. These encoders are generally simple and inexpensive, suitable for low-noise environments and short distances.
- Push-pull (totem-pole) output: Each output channel has two transistors working in complementary pairs. These encoders provide faster switching speeds and better noise immunity.
- Differential line driver output: Each output channel has two complementary signals, one inverted relative to the other. These encoders provide excellent noise immunity, long-distance transmission capability, and high data rates.
When selecting an encoder, be sure to also consider the resolution required and the amount of shaft load. Light-duty, medium-duty, and heavy-duty options are available, each offering different load capacities.
For part listings and specifications, go to Shop Now
JTEKT Light Duty Incremental Encoders (Quadrature)
JTEKT (formerly Koyo) light-duty encoders are industrial duty encoders for applications with light shaft loading. These encoders are perfect for applications with minimal shaft loading and flexible shaft couplings.
- Resolution available from 100 pulses per revolution to 2500 pulses per revolution
- 6mm solid shaft or 8mm hollow shaft
- Small body - 38mm or 40mm diameter
- Dust proof (IP50) and water resistant (IP65) ratings
- HTL/open collector or TTL/line driver
- Up to 200 kHz maximum response frequency
- Two-meter cable with tinned ends
Lika Light Duty Incremental Encoders (Quadrature)
Lika light-duty encoders (A41 series) are cost-effective encoders for applications with light shaft loading. These encoders are perfect for industrial applications with good mounting conditions and flexible shaft couplings.
- Resolution available from 100 pulses per revolution to 4096 pulses per revolution
- 6mm solid shaft or 8mm hollow shaft
- Small body - 38mm or 40mm diameter
- Dust proof (IP50) and water resistant (IP64 and IP65) ratings
- Universal output (works with HTL/open collector and TTL/line driver)
- Up to 200 kHz maximum response frequency
- Two-meter cable with tinned ends
JTEKT Medium Duty Incremental Encoders (Quadrature)
JTEKT (formerly Koyo) medium-duty encoders offer flexibility, high quality, and superb accuracy.
- Incremental resolution available from 3 pulses per revolution to 5000 pulses per revolution
- 8mm or 3/8-in solid shaft, 8mm hollow shaft
- Medium body: 2 inch or 50mm diameter
- Dust proof (IP50) or splash proof (IP65) ratings
- TTL/Line Driver or HTL/totem-pole output
- Up to 200 kHz response frequency
- Two-meter cable with tinned ends or MS connector
Lika Electronic Medium Duty Incremental Encoders (Quadrature)
New!
Lika Electronic medium-duty encoders provide several distinct options including compact, high-heat, and programmable encoders, as well as encoders designed for large AC motors.
- A50 series units are designed to withstand high temperature environments up to 100 C (212F) with ¼ inch or 3/8 inch hollow shafts, in resolutions from 360 up to 2048PPR
- A80 series encoders are designed to fit large AC motors, with a 30mm hollow shaft and 1024 PPR resolution; a selection of reducer bushings is available to accommodate metric or SAE shafts (5/8" to 30mm)
- AQ5x series medium duty encoders have programmable resolution from 1 to 16,384 PPR, have a 58 mm or 59 mm body diameter, and either a 3/8 inch solid shaft or a 15mm hollow shaft; reducer bushings are available to accomodate metric and SAE shafts from 6mm to 15mm
JTEKT Heavy Duty Incremental Encoders (Quadrature)
JTEKT (formerly Koyo) heavy-duty encoders are the most rugged encoders you can buy. Top-of-the-line bearings help maintain a service life of 12 billion revolutions and allow significant loads on the shaft.
- Incremental operation from 30 pulses/revolution to 5000 pulses/revolution
- 10mm solid shaft
- Large body: 3 inch or 78mm diameter
- Splash proof (IP65) rating
- HTL/Totem-pole output
- Up to 100 kHz response frequency
- Two-meter cable with tinned ends
JTEKT Medium Duty Absolute Encoders (Gray Code)
JTEKT (formerly Koyo) absolute encoders use gray code (a version of binary where the outputs only change state one bit at a time) to describe each position, so position data is not lost when power is cycled AND the response frequency is slower for a given resolution.
- Absolute resolution available from 32 to 2048 pulses per revolution
- 8mm solid shafts
- Small body with 50mm diameter
- Splash proof (IP65) rating
- Resolution ranges from 5-bit to 11-bit gray code output
- Up to 20 kHz response frequency
- Two-meter cable with tinned ends
Lika Electronic Rotary Measuring Wheel Encoders
New!
Lika Electronic measuring wheel encoders feature a spring-loaded lever with a dual shaft encoder. Rubberized wheels are installed on the encoder shaft. These encoders ride directly on a product or belt to measure distance/length or provide speed control feedback.
- US/imperial and metric wheel sizes (standard 4 inch or optional 80mm wheel)
- Spring loaded arm with up to 30mm deflection
- IP65 environmental protection rating
- 250 and 1250 PPR encoders with incremental quadrature output
Starting at
$299.00
(AR01-0250-HM12-A)
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