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NorthStar RIM Tach Encoder Family

The NorthStar RIM Tach encoder line (formerly Lakeshore encoders) was originally introduced 20 years ago to provide the highest performance encoder solution for large motor and drive control systems in paper and steel mills. The next generation of NorthStar motor tachs offer the most reliable magnetic technology on the market thanks to a large non contacting air gap, active LED indicators with diagnostics, fully encapsulated electronics and field replaceable sensor modules for the RT8 and RT1 models. A high current line driver with active line suppression, reverse polarity and ESD protection is also available for RT models allowing for reliable operation and long cable runs.
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Next Gen RIM Tach Encoders

RIM Tach 8500 NexGen w/wheel large

NexGen RIM Tach RT8

NexGen 8.5" 180 C-Face motor tach is easy to install with wider air gap, high power line driver and improved wheel design. Up to 2,400 PPR.

RIM Tach 6200 NexGen LR

NexGen RIM Tach RT6

NexGen 56 C-Face or foot mount shafted encoder with wider air gap, built in diagnostic LED and high power line driver. Up to 2,400 PPR.

1250 NexGen Large

NexGen RIM Tach RT1

NexGen 12.5" 250 C-Face mount motor tach with wide air gap for easy installation, high power line driver and ESD protection. Up to 2,400 PPR.

Legacy RIM Tach Encoders

Rimtach8500-Large

RIM Tach 8500

Bearingless magnetic 8.5" 180 C-Face motor tach with removable sensor modules for easy service. Cast iron construction. Up to 1,200 PPR.

Rimtach6200-Large

RIM Tach 6200

Bearingless magnetic 56 C-Face or foot mount encoder with removable sensor modules for easy service. Long life bearings. Up to 1,200 PPR.

Rimtach1250-Large

RIM Tach 1250

Bearingless magnetic 12.5" 250 C-Face mount motor tach with removable sensor modules for easy service. Cast iron construction. Up to 1,200 PPR.

Hollow-Shaft RIM Tach Encoders

HS85

HS85

Hollow-shaft magnetic encoder. 4.5" max bore size. Removable sensor modules for easy service. 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.