The NorthStar brand Series HSD35 Sealed Hollow shaft encoder is designed for easy installation on motor or machine shafts. Its hollow shaft design eliminates the need for a flexible shaft coupling, mounting bracket, flower pot, or flange adapter, which reduces installation depth and also lowers total cost.It is equipped with an unbreakable disk that resists contamination and meets the demands of the most severe shock and vibration generating processes. Its floating shaft mount and spring tether eliminate bearing loads and flexible shaft couplings to eliminate wear and maintenance.Series HSD35 has complete electrical protection from over-voltage, reverse voltage, and output short circuits.
In addition, the Series HSD35 is not only electrically & thermally isolated, but also environmentally sealed with shaft seals at both ends.Series HSD35 encoders can be provided with optional hazardous location certification that allows use in environments stated in: Class I, Division 2, Group A: atmospheres such as acetylene; Class I, Division 2, Group B: atmospheres such as hydrogen; Class I, Division 2, Group C: atmospheres such as ethyl ether and ethylene; Class I, Division 2, Group D: atmospheres such as acetone, ammonia, benzene, butane, cyclopropane, ethanol, gasoline, hexane, methanol, methane, natural gas, naphtha, and propane; Class II, Division 2, Groups F & G: atmospheres containing combustible carbonaceous dusts, including carbon black, charcoal, coal, or coke dusts, and combustible dusts including flour, grain and wood.Classifications of hazardous locations are subject to the approval of the authority having jurisdiction.
Refer to Article 500 of the National Electrical Code (NEC) or Section 18 of the Canadian Electrical Code (CEC).
ELECTRICAL
Input Power: (each output)4.5 min. to 26 VDC max. at 100 mA max., not including output loadsOutputs:7273 Open Collector: 30 VDC max., 40 mA sink max.7272 Push-Pull and Differential Line Driver: 40 mA sink or source4469 Differential Line Driver: 100 mA sink or sourceFrequency Response: 100 kHz min.Electrical Protection: Over voltage, reverse voltage and output short circuit protectedNoise Immunity: Tested to EN50082-2 (Heavy Industrial) for Electro Static Discharge, Radio Frequency Interference, Electrical Fast Transients,Conducted and Magnetic InterferenceMating Connector:10 pin-style HA-10
MECHANICAL
Bearing Life: 80,000 hours at 3600 RPM; 128,000 hours at 1800 RPMShaft Loading: 40 lbs. radial, 30 lbs. axialShaft Speed: 3600 RPM max.
(Important: see Operating Temperature derating for >1800 RPM)Shaft Bore Tolerance: Nominal +0.0003"/+0.0005" (+0.008/+0.013 mm)Mating Shaft Requirements: Runout: ±0.025" (±063 mm) radial typicalEndplay: ±0.050" (±1.27 mm) axial typicalMinimum Length: 1.25" (32 mm) recommendedMaximum Length: 2.0" (51 mm) to fit inside coverSolid shaft recommended; keyway allowed; flatted shaft should not be usedStarting Torque: 5.0 oz-in max.Running Torque: 4.5 oz.
-in max.
Moment of Inertia:
5/8" bore: 25.6 x 10-4 oz-in-sec2Weight:28 oz. max. Environmental