Product Description:

The HS35R1024H57401 hollow-shaft encoder is manufactured by Danaher and belongs to the Dynapar Encoders series. It is designed for installation on motor or machine shafts. The encoder converts mechanical rotation into electrical pulses so that drive controllers can monitor position and velocity in automated equipment.

At 1,800 rpm, the sealed bearings are rated for 128,000 hours of service, indicating long maintenance intervals under typical conveyor or spindle speeds. The aluminum housing carries a NEMA 4/IP66 enclosure rating, so dust and high-pressure washdowns do not affect signal integrity. Mechanical coupling tolerates up to ±0.050 inches of shaft endplay and ±0.025 inches of runout, while a maximum operating speed of 3,600 rpm matches common induction motor outputs. The code disk requires only 5.0 oz-in of starting torque and settles to 4.5 oz-in during operation, limiting back-drive loads on light-duty servos. Electrical performance includes a minimum frequency response of 100 kHz, allowing controllers to resolve high-speed motion without missing pulses. The incremental code format supplies square-wave A and B channels that correspond to shaft rotation. The encoder supports radial loads up to 40 lb and weighs 16 oz, simplifying bracket design.

High-resolution feedback is achieved through 1,024 PPR, providing 4,096 edges per revolution when both channels are decoded in quadrature. When the shaft operates at 3,600 rpm, the bearings provide a service life of 80,000 hours, supporting continuous-duty applications at the maximum operating speed. The encoder withstands an axial thrust of 30 lb without shifting its internal alignment, which helps preserve phase accuracy over time. For digital interface compatibility, each channel has a rise and fall time of less than 1 µs, so the square waves maintain sharp transitions across long cable runs.