Stainless Steel Encoders Resist Chemical Attack

Description

BEI’s industry standard H25 and H20 incremental rotary encoders are now available with a stainless steel housing option. Harsh industrial applications often expose plant equipment to caustic chemical materials, resulting in premature deterioration and failure. Now you can prevent costly equipment downtime and replacement by ordering your BEI encoders with a 304 series stainless steel encoder body and bearing housing. This provides exceptional resistance to the corrosive agents often found in wash-down and chemical environments. This option is ideal for use in chemical, petrochemical, food, and medical industries. The H25 is the flagship of the BEI Industrial Encoder Division product line. It offers features such as EMI shielding, 40 lb. dual, preloaded ABEC 7 bearings, matched thermal coefficients on critical components, and custom high-efficiency optics. The H20 is a compact encoder that features heavy-duty bearings, shock resistant disc and conforms to NEMA 4 and 13 requirements.

Specs

• Shaft Diameter: 1/4" thru 3/8" and metric versions.Hollow shaft,hub shaft or thru-shaft versions available. • Flat On Shaft: 0.75 x 0.03 deep • Shaft Loading: up to 40 lbs.axial and 40 lbs.radial • Shaft Runout: .001 T.I.R.maximum • Starting Torque at 25°C: 1.0 in-oz maxi-mum without shaft seal; 2.5 in-oz maximum with shaft seal; 4.0 in-oz thru-shaft • Bearings: 52100 bearing steel • Shaft material: 303 stainless steel • Bearing Housing: Die cast aluminum with iridite finish; stainless steel (special feature) • Cover: Die cast aluminum with protective finish (For MS or CS terminations),otherwise drawn aluminum with protective finish; stain-less steel (special feature) • Bearing Life: 1.5 X 109 revs at rated load (10,000 hrs at 2500 RPM) • Maximum RPM: 8,000 (see Frequency Response) • Moment of Inertia: 2.0 x 10-4 oz-in-sec2 • Weight: 9 oz.typica
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