Bei01008-1627Incremental Optical Rotary Encoder — 2000 PPR, 5-28 V DC Line Driver, ABZ Complementary, Servo Mount, 1/4 in Shaft

Product Description

What this part is

The BEI 01008-1627 is an L25 incremental optical rotary encoder, model code L25G-SB-2000-ABZC-28V/V-SM18, as printed on the BEI Industrial Encoders label. The L25 is the lighter-duty version of the BEI H25, with the same optics and electronics, low starting torque, ABEC 5 bearings, EMI shielding, a 1/4 in stainless steel shaft and a drawn aluminum cover. Resolution: 2000 cycles per turn. Supply Voltage: 5–28 V DC. Output: line driver, Vout equal to Vin, channels A, B and Z with complements.

Decoding the catalog number

L25 — BEI L25 encoder, 2.500 in diameter.

G — housing configuration G, 2.62 in diameter servo mount.

SB — shaft seal integral with the bearing.

2000 — 2000 cycles per shaft turn.

ABZ — dual quadrature channels A and B with index Z.

C — complementary outputs.

28V/V — multi-voltage line driver, 5–28 V DC in, Vout equal to Vin.

S — side output termination.

M18 — M18 MS-style circular connector.

Specifications

Code: Incremental. Cycles per Turn: 2000. Output Format: 2 channels in quadrature plus gated index, with complementary outputs. Output Driver: 7272 multi-voltage line driver, 100 mA source/sink. Supply Voltage: 5–28 V DC. Supply Current: 120 mA typical plus load. Protection: reverse voltage, overvoltage to 60 V and output short circuit. Frequency Response: 100 kHz. Maximum Speed: 10,000 RPM. Starting Torque: 0.50 in-oz typical, 1.0 in-oz maximum with sealed bearings. Shaft Loading: up to 5 lb axial and 8 lb radial. Shaft Runout: 0.0005 in TIR maximum. Bearing Class: ABEC 5. Bearing Life: 1 x 10^9 revolutions. Enclosure Rating: NEMA 2 (IP43). Operating Temperature: 0 to 70 °C. Storage Temperature: −25 to 90 °C. Shock: 50 g for 11 ms. Vibration: 5 to 2000 Hz at 20 g. Humidity: 98% RH without condensation.

Dimensions and mounting

Mounting: G-style servo mount, 2.62 in diameter. Body Diameter: 2.500 in. Shaft Diameter: 1/4 in nominal, 416 stainless steel, with a flat 0.80 in long and 0.03 in deep. Bearing Housing: die cast aluminum with iridite finish. Cover: die cast aluminum for SM terminations. Weight: 13 oz typical. Connector: side-exit M18, mating plug MS3106F18-1S.

Compatibility and replacement

BEI part no. 01008-1627 identifies this exact L25G-SB-2000-ABZC-28V/V-SM18 build. BEI states that in most instances an L25 encoder can be replaced with an equivalent H25 model fitted with a 1/4 in diameter shaft.

CAD model and data sheet: available from BEI Sensors (beisensors.com).

Frequently asked questions

What resolution is the BEI 01008-1627 encoder?
2000 cycles per turn, with A and B quadrature channels and a Z index.

What supply voltage does the L25G-SB-2000-ABZC-28V/V-SM18 use?
5 to 28 V DC, with line driver outputs equal to the supply voltage.

What connector does this encoder use?
A side-mounted M18 MS-style connector; BEI lists MS3106F18-1S as the mating straight plug.