Hollow-Shaft Encoders

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.

Learn more about hollow-shaft encoders here 

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View All Incremental Hollow Shaft Encoders

Incremental Hollow-Shaft Encoders

Dynapar offers a wide range of hollow-shaft incremental encoders with bore sizes of 0.25 to 2.875 inches and resolution up to 5000 PPR.

View All Absolute Hollow Shaft Encoders

Absolute Hollow-Shaft Encoders

See all hollow-shaft absolute encoders for mounting directly to a motor shaft. Up to 22 bit single and 12 bit multi-turn available.

Featured Hollow-Shaft Encoders

HS35R Heavy Duty Hollow Shaft Encoder


Heavy duty incremental hollow-shaft encoder rated at 400G shock, 20G vibration. Wide temperature range and IP67 option. 1-5,000 PPR.

HS20 Sealed Hollow Shaft Encoder


Compact 2.0" size incremental hollow-shaft encoder with electrically isolated shaft design. ABZ and differential output options. 1-2,540 PPR.

F10 Miniature Hollow Shaft Encoder


Ultra small size 10 hollow-shaft incremental encoder with up to 120°C temperature range. Max 2,048 PPR with commutation tracks available.

HS56 SLIM Tach Hollow Shaft Encoder


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.

AD36 Miniature Absolute Hollow Shaft Encoder


Compact size 15 or 38mm diameter hollow shaft absolute encoder. SSI, BiSS, SSI Gray options. Up to 22 bit ST and 12 bit MT resolution.

Featured Accessories

Encoder Tether and Encoder Cover

Tethers and Cover Kits

See tether and cover kits including single point, slotted and rod tethers as well as basket covers that attach over the encoder to motor face.

Encoder Cables and Encoder Connectors

Encoder Cables

Find mating cables, cable assemblies with connectors, raw cable and shielded cables in a variety of lengths and output types.