British Encoder Industrial Encoders and Sensors

Comprehensive technical selection of industrial incremental, hollow bore, absolute, and Tru-Trac linear measuring encoders by British Encoder.

British Encoder Model 702 Incremental Shaft Encoders

Industrial Model 702 optical incremental shaft encoders in standard Size 20 packages deliver reliable motion feedback in demanding factory environments. The 50.8 mm diameter housing features double-shielded ball bearings rated for radial and axial shaft loads up to 35 kg.

Precision double-shielded ball bearings supporting radial and axial loads up to 35 kg
Optical resolution options reaching up to 30,000 pulses per revolution on the shaft
Flexible flange and servo mounting options in standard Size 20 industrial packages
Heavy duty sealing options providing environmental protection up to IP67 standards

British Encoder Model 15T Compact Hollow Bore Encoders

Low-profile Model 15T and 15H incremental hollow bore encoders provide high-performance rotary feedback for compact servo drives and stepper assemblies. The low-profile package measures 25.4 mm in height and 38 mm in diameter, mounting directly on motor shafts up to 10 mm.

Low-profile package measuring 25.4 mm in axial height and 38 mm outer diameter
Precision through-bore sleeve accommodating direct motor shaft sizes up to 10 mm
Innovative flexible mounting arm with twenty to thirty degrees rotational adjustment
Optional commutation channels up to twelve poles for brushless servo motor control

British Encoder Model 25T Large Bore Hollow Shaft Encoders

Model 25T and 25H incremental hollow thru-bore encoders accommodate large motor shaft sizes in industrial drive installations. Featuring advanced Opto-ASIC sensor technology, the unit supports metric bore diameters from 6 to 28 mm with frequency response up to 1 MHz.

Metric through-bore clamping collars accommodating motor shaft diameters 6 to 28 mm
High speed Opto-ASIC circuitry delivering output signal frequencies up to 1 MHz
Selectable resolution configurations reaching up to 10,000 pulses per revolution
Single direct mechanical replacement for obsolete encoders from 50.8 to 88.9 mm

British Encoder Model A58SB Absolute Multi-Turn Encoders

Model A58SB 58 mm diameter solid shaft absolute encoders utilize battery-free and gearless magnetic sensing architecture. Energy Harvesting multi-turn technology maintains continuous turn count retention during complete system electrical power outages without maintenance.

Precision absolute feedback offering 16-bit single-turn and 43-bit multi-turn range
Patented Energy Harvesting magnetic multi-turn module without batteries or gears
Support for SSI, CANopen, SAE J1939, and bidirectional IO-Link field communications
Solid stainless steel shaft in 58 mm diameter flange or servo mounting housing

British Encoder TR1 Tru-Trac Linear Measurement Encoders

The TR1 Tru-Trac integrated linear measurement assembly combines an optical encoder and a spring-loaded measuring wheel within a unified compact module. The torsion arm delivers adjustable wheel pressure against moving materials at travel velocities up to 3,000 feet per minute.

Integrated rotary sensor and calibrated measuring wheel combined in a single unit
Spring-loaded torsion arm providing convenient wheel tracking contact adjustment
Accurate velocity and linear distance tracking at line speeds up to 3000 ft/min
Versatile installation flexibility in vertical, horizontal, or inverted orientations

British Encoder Model 725 Heavy Duty Size 25 Encoders

Model 725 optical incremental shaft encoders in rugged Size 25 (63.5 mm) housings are engineered to withstand extreme vibrations and mechanical shocks in industrial plants. The heavy-duty housing isolates internal sensor electronics while IP67 sealing prevents fluid entry.

Industry-standard Size 25 heavy-duty package with outer diameter of 63.5 millimeters
High-precision optical disk delivering resolutions reaching up to 30,000 PPR
Rigid mechanical design isolating internal optoelectronics from severe shock loads
Standard and heavy-duty housing configurations featuring environmental IP67 sealing

Optical and magnetic signal interpolation in industrial BEPC encoders

British Encoder incremental shaft encoders employ precision glass disks and differential Opto-ASIC sensor arrays. The optical graticule produces two quadrature sinusoidal waves phased ninety degrees apart alongside a reference index pulse.

Internal signal interpolation processors convert raw analog signals into digital square-wave pulse trains conforming to RS-422 Line Driver or Push-Pull HTL standards with resolutions reaching 30,000 pulses per revolution.

Balanced differential line drivers transmit signals over industrial shielded twisted pairs, effectively eliminating common-mode electrical noise originating from motor drives and frequency converters.

Shaft runout isolation and flex mount dynamics in hollow bore models

Installing through-bore hollow encoders directly upon electric motor shafts exposes internal bearings to shaft runout, end-play, and thermal expansion. To isolate precision internal ball bearings, British Encoder incorporates flexible torsion spring arms.

These engineered steel flex mounts offer high torsional rigidity in the rotational direction, ensuring zero-backlash angular position transmission.

Concurrently, the flex arm flexes freely in radial and axial planes, absorbing shaft misalignments up to one millimeter while shielding internal optoelectronics from harmful structural vibrations and harmonic shock.

Energy Harvesting magnetic multi-turn counters in Model A58SB

Model A58SB absolute multi-turn encoders feature an innovative magnetic pulse generator based on the Wiegand effect for non-volatile turn counting. When an onboard permanent magnet rotates with the shaft, ferromagnetic wire domains reverse polarity abruptly, producing an electrical pulse.

This self-generated power pulse operates internal counting logic and updates non-volatile memory without relying on lithium batteries or internal mechanical reduction gearboxes.

The system tracks absolute position up to 43 bits across complete electrical power shutdowns without needing mechanical homing cycles.

Torsion arm pressure tuning and wheel selection on TR1 Tru-Trac

TR1 Tru-Trac integrated measurement modules provide continuous linear distance and velocity tracking across moving sheet materials, extrusions, textiles, and timber.

The unified assembly incorporates an adjustable spring-loaded torsion arm that delivers constant wheel tracking pressure against moving surfaces. This mechanism eliminates measuring wheel slip during abrupt line accelerations and conveyor vibrations.

Depending on surface hardness and roughness, units utilize interchangeable wheels with knurled aluminum, ribbed rubber, or polyurethane rims for vertical, horizontal, or inverted conveyor mounting.

Heavy-duty Size 20 and Size 25 housings for harsh industrial machinery

Model 702 and Model 725 incremental rotary encoders are built within robust anodized aluminum Size 20 and Size 25 enclosures. The mechanical design separates internal dual ball bearing cavities from optical sensor electronics.

Precision stainless steel shafts rotate within double-shielded deep-groove ball bearings protected by fluorocarbon shaft seals.

This configuration withstands mechanical shock loads exceeding one hundred gravities and severe vibrational stress, maintaining IP67 sealing protection against high-pressure coolant sprays and airborne particulate matter.

Industrial fieldbus protocols for absolute encoders: SSI, CAN, IO-Link

British Encoder absolute rotary feedback devices interface with modern PLC architectures through open communication standards. The Synchronous Serial Interface (SSI) transmits absolute position data over differential lines at clock rates up to 2 MHz.

For networked automation networks, CANopen and SAE J1939 protocols provide cyclic PDO telemetry with configurable baud rates up to 1 Mbit/s.

Point-to-point IO-Link connectivity enables bidirectional digital communication with master controllers, facilitating parameter configuration, internal temperature monitoring, and operating hour tracking.

British Encoder and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of British Encoder and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.