Anti-Rotation Flex Mounts for Encoders


Anti-Rotation Flex Mount Features

Encoder Products Company designed and implemented the first flexible tether mount for rotary encoders several decades ago. The tether serves two purposes:

  • First, it keeps a blind hollow bore or thru-bore encoder from rotating with the shaft on which it’s mounted.
  • Second, it allows the encoder to accommodate shaft endplay and runout without transmitting those loads to the encoder bearings.

EPC anti-rotation tether mounts are engineered to achieve a perfect balance of flexibility and stiffness. For best encoder performance and longevity, we recommend using only EPC flex mounts on all Accu-Coder® and Accu-CoderPro® encoders.

25th-se-3-point-flex-mount_standard

A Model 25H blind hollow bore mounted with a 3-point mount. See Stock #140114-01 below.

Anti-Rotation Flex Mount Ordering Guide

Image Stock # Description Dimensions Encoder models Drawings
accessories-anti-rotation-flex-mount-140054 140054-01 Santoprene rubber flex mount 1.56" from base to top Models 775, 776 Drawing | #140054-01
stock-140106-01_225-f-flex-arm-mount 140106-01 Flexible arm mounting kit   Model 225 Drawing | #140106-01
260-fb-flexarm 140108-01 FB Flexible mounting arm kit

4.22" to 6.22" bolt circle

For use with unit mounting options XF, NF, FB

Models 260, 702 Drawing | #140108-01
260-sf-flex 140055-01 SF Mounting kit

1.811" (46 mm) bolt circle

For use with unit mounting options SF, SD, FA

Model 260 Drawing | #140055-01
260-sd-flex 140107-01 SD Mounting kit

1.575" (40 mm) bolt circle

For use with unit mounting options SF, SD, FA

Model 260 Drawing | #140107-01
260-fa-flex 140071-01 FA Flex arm mounting kit

2.12" to 3.62" bolt circle

For use with unit mounting options SF, SD, FA

Model 260 Drawing | #140071
25th-se-standard 140114-01 SE 3-point mounting kit 2.25" to 2.75" bolt circle Models 25T/H, 58TF/TP Drawing | #140114-01
25th-sg-flex 140115-01 SG Tether arm mounting kit 3.5" to 5.9" bolt circle Models 25T/H, 58TF/TP Drawing | #140115-01
25th-sj-flex 140116-01 SJ Tether arm mounting kit 3.5" to 8.1" bolt circle Models 25T/H, 58TF/TP Drawing | #140116-01
25th-sh-pinflex 140123-01 SH Block and pin mounting kit   Models 25T/H, 58TF/TP Drawing | #140123-01

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