Linear Cable-Extension Transducer
The LT25 cable transducer utilizes a flexible cable, a spring-loaded spool, and an incremental optical encoder to precisely measure linear position.

Linear Cable Transducer
(2 pgs/213k)
LT25 Installation Instructions

Model H25® Incremental Encoder
As the flagship of the BEl Industrial Encoders product line, the H25 is designed for the industrial machine tool marketplace.

Incremental Optical Encoder Model H25® 
(4 pgs/256k)

Model H20® Incremental Encoder
The H20 is an all metal, extremely rugged encoder with heavy duty bearings and EMI shielding.

Incremental Optical Encoder Model H20®
(4 pgs/261k)   

Model H25® Absolute Encoder
One of our most popular single-turn absolutes. Size 25 Rotary Absolutes at 13 bits or less Serial Output options are also available.

Absolute Encoder Model H25®
(3 pgs/213k)

Model HS35 Hollow-shaft Incremental Encoder
The HS35 combines the rugged, heavy-duty features in a hollow-shaft style.

Hollow Shaft Optical Incremental Encoder Model HS35   (4 pgs/102k)

Model H25X Absolute Encoder offers single turn design for those applications that require 14 or 15 bits of resolution in a compact, easy-to-integrate package.

Optical Absolute Encoder Model H25X
(4 pgs/521k)

Model HS20 Hollow-shaft Incremental Encoder
The HS20 has a compact, rugged design allowing it to fit into confined spaces where lighter duty encoders are not suitable or cost effective.

Hollow Shaft Optical Incremental Encoder Model HS20 (2 pgs/144k)

Model H38 Explosion Proof Absolute Encoder
The H38 is explosion-proof and carries multiple ratings for hazardous environments.

Absolute Optical Encoder Model H38
(6 pgs/445k)

Model HS45 Hollow-shaft Incremental Encoder
The HS45 is a large bore, heavy-duty hollow-shaft encoder designed to operate in very demanding environments.

Hollow Shaft Optical Incremental Encoder Model HS45   (4 pgs/283k)

Model HS35 Hollow Shaft Absolute Encoder
The HS35 is designed with various output options including Gray Code and Natural Binary and an IP65 environmental rating.

Hollow Shaft Optical Absolute Encoder Model HS35
(3 pgs/170k)

Model HS25 Hollow-shaft Incremental Encoder
This low-profile design, just 2" deep, is easily mounted on a throughshaft.

Hollow Shaft Optical Incremental Encoder Model HS25    (4 pgs/251k)

Model H40 Shock Proof Absolute Encoder
The optics and electronics of the H40 encoder are supported in shock-absorbing material within the heavy cast outer housing.

Absolute Optical Encoder Model H40
(5 pgs/448k)

Model L25 Rotary Incremental Optical Encoder
The L25 is a lighter duty version of BEl's H25 optical encoder with a low starting torque.

Rotary Incremental Optical Encoder Model L25
(5 pgs/353k)

Model HMT25 Multi-turn Absolute Encoder
The HMT25 geared multi-turn encoder provides absolute position information over multiple turns of the input shaft, even during power loss.

Multi-turn Absolute Encoder Model HMT25
(4 pgs/257k)

Model E25 Rotary Incremental Optical Encoder
The E25 is a light duty encoder whose self-contained mounting and coupling features can result in reduced interface costs.

Rotary Incremental Optical Encoder Model E25
(5 pgs/363k)

Model MT40 Multi-Turn Absolute Encoder
available through the Precision Systems & Space Division

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Model H38 Explosion Proof Optical Encoder
The H38 is an explosion proof version of the field-proven H25 encoder series.

Rotary Incremental Optical Encoder Model H38
(4 pgs/429k)

Encoders for Harsh Environments
Ideal for oilfield, wash down, water immersion, chemical or other wet, dirty or harsh environments.

Model H40 Shock Proof Optical Encoder
The H40's ultra heavy-duty housing totally isolates the encoder from severe shock and shaft loading conditions.

Rotary Incremental Optical Encoder Model H40
(4 pgs/383k)

Environmentally Sealed Optical Encoders
IP67 environmental rating, isolated from high shock and vibration, dust tight, and immersible in water.

Environmentally Sealed Incremental Encoder Model ES25  (2 pgs/ 307k)
Environmentally Sealed Incremental Encoder Model ES20 (2 pgs/ 230k )

Model HS22 Hollow-shaft Incremental Optical Encoder
The heavy-duty HS22 offers either through-shaft or blind-shaft configurations for installation to a servo motor.

Hollow-shaft Incremental Optical Encoder Model HS22

Stainless Steel Optical Encoders
Model H25® and H20® available with a 304 stainless steel encoder body and bearing housing.

Incremental Optical Encoder Model H25®  (4 pgs/247k)
Incremental Optical Encoder Model H20® (4 pgs/255k)
Note:To order stainless option, add -S to model number and specify on PO.

Model L15 Rotary Incremental Optical Encoder
Ideal for space-limited applications, the L15 encoder discounts size without compromising performance.

Rotary Incremental Optical Encoder Model L15
(1 pg/75k)

DrawWorks Encoders
Specifically designed for DrawWorks applications, these rugged, heavy-duty encoders feature a unique through-shaft style for use as a winch-turns counter.

DrawWorks Hollow-Shaft Encoder Model HS35 (2 pgs/128k)

TRACKBALLS

Adapters

Model TBP138
This compact panel-mount trackball is designed to meet your exacting cursor control requirements while sustaining mechanical precision and longevity.

Model TBP138 Spec Sheet

Model TBS200
The low-profile panel-mount trackball provides an ideal solution for highly precise control in a smaller package, with 200 counts per revolution.

Model TBS200 Spec Sheet

Thermoplastic Adapter & NEMA 34/42
Thermoplastic material provides thermal and electrical isolation.

Model TBS225
This panel-mount or stand alone trackball provides accurate and reliable motion input to your system with a 2.25-inch ball and superior feel.

Model TBS225 Spec Sheet

Electronic Modules

NEMA 56 Adapter

Optical Isolator Module
This DIN rail mounted encoder interface lets you connect an encoder to a variety of controllers, or to multiple input devices, and is compatible with all major counter, drive and PLC components.

Optical Isolator Module Applications Guide

H20 Hub Shaft with Flexmount
Provides a versatile, general purpose mounting that can readily accommodate shafts from 1/4" up to 5/8" in a compact package.

Intrinsic Safety Barrier
This Galvanically Isolated Intrinsic Safety Barrier is the perfect complement to BEI encoders for hazardous environments.

Intrinsic Safety Barrier Spec Sheet
(1 pg/76k)

5PY Adapter
This standard adapter can accommodate several encoder models.

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Encoder Tester
This DIN rail mounted tester is designed to simply and reliably test the operation of any industrial encoder.

ETM Applications Guide

Accessories

Anti-Dither Module
This module can solve the problem of extra counts caused by high vibration.

Anti-Dither Guide

The Broadcaster
This module accepts standard incremental encoder input and can broadcast up to four encoder signals to four independent devices.

Encoder Broadcaster Module

Serial-to-Parallel Converter
This module takes serial data from any BEI Serial Synchronous Interface (S3) or RS-422 Interface (S1) encoders and converts it to a parallel output.