HS35R
Heavy duty incremental hollow-shaft encoder rated at 400G shock, 20G vibration. Wide temperature range and IP67 option. 1-5,000 PPR.
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Encoder Accuracy vs Resolution
Dynapar offers both incremental and absolute hollow-shaft encoders in a variety of sizes and resolutions. Hollow-shaft encoders can be directly mounted to a motor shaft and affixed using a flexible tether or torque arm to prevent the encoder from rotating. Hollow-shaft encoders are easier to install than shafted encoders, eliminating the need for a coupling and do not require motor shaft alignment with respect to the encoder.
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A hollow-shaft encoder is designed for the motor shaft to pass through the housing of the encoder. This design saves space by eliminating the need for a coupler and allows for a simple mounting.
A shaft encoder is used for applications that require the encoder to be isolated from motor noise and/ or mechanical vibration. A shaft encoder uses a mechanical coupling to attach the encoder shaft to a motor shaft and typically takes up more space than other mounting styles.
To mount a hollow shaft encoder you will want to follow a few simple steps. Begin by checking and cleaning your mating shaft. Next, install the tether on your encoder. Slide the encoder on the motor shaft. Secure the tether to the mounting face. Finally, tighten encoder clamp to mating shaft.
Download a free white paper on encoder mounting techniques here
A thru-shaft or thru-bore encoder are alternative names for hollow shaft encoders. As the name implies, the thru-bore encoder housing design has a complete bore opening allowing the motor shaft to mount through the middle of the encoder. Unlike a blind-hollowshaft or hubshaft encoder, you will be able to visually see through a thru-bore encoder.
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