NorthStar SLIM Tach Encoder Family

The NorthStar SLIM Tach encoder line (formerly Lakeshore encoders) was originally designed as a low profile solution for heavy duty motor feedback applications where shaft space is limited. With profiles as slim as 0.75 inches, the SLIM Tach encoder line is ideal for sandwich mount applications where an encoder is mounted between a brake or gearbox. The next generation of SLIM Tach encoders offers easily installation and reliability thanks to a large non contacting air gap, active LED indicators with diagnostics and fully encapsulated electronics. The latest high current line driver, active line suppression, reverse polarity and ESD protection are available adding cutting edge technology to the SLIM Tach family.
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Next Gen SLIM Tach Encoders

ST56 170 pix wide

ST56

56 C-Face or 140 C-Face mount, compact 0.75" thin encoder. Wide air gap for easy installation. Single or dual isolated output options. Up to 2,048 PPR.

ST67 170pix

ST67

Reliance 6.75" Recess, 56 and 140 C-Face mount, 1.28" thin encoder. Wide air gap, single or dual isolated output options. Up to 2,048 PPR.

ST85 170pix

ST85

180 C-Face mount, 1.35" thin encoder. 2.875" max bore size. Wide air gap, single or dual isolated output options. Up to 2,048 PPR.

Hollow Shaft SLIM Tach Encoders

SlimtachHS56-Large

HS56

Hollow-shaft magnetic encoder. 1-1/8" max bore size. Mounts to motors without C-Face mounts. Single or dual isolated output options. Up to 2,048 PPR.

HS60-Large

HS60

Hollow-shaft magnetic encoder. 2-7/8" max bore size. Mounts to motors without C-Face mounts. Single or dual isolated output options. Up to 2,048 PPR.

Legacy SLIM Tach Encoders

SlimtachSL56-Large

SL56

56 C-Face or 140 C-Face mount, compact 0.75" thin encoder. Latching connector available. Single or dual isolated output options. Up to 1,024 PPR.

SlimtachRL67-Large

RL67

Reliance 6.75" Recess, 56 and 140 C-Face mount, 1.28" thin encoder. Latching connector available. Single or dual isolated output options. Up to 1,024 PPR.

SlimtachSL85-Large

SL85

180 C-Face mount, 1.35" thin encoder. 2.875" max bore size. Latching connector available. Single or dual isolated output options. Up to 1,024 PPR.

SlimtachSL1250-Large

SL1250

250 C-Face mount, requires only 1.4" of motor shaft. 2.875" max bore size. Latching connector. Single or dual isolated output options. Up to 2,048 PPR.

Discontinued NorthStar and LakeShore Motor Tachs

Crossover Guide

Discontinued Part Crossover Guide

Find a replacement for a discontinued NorthStar or Lakeshore motor tach model and the current generation recommended replacement.