Product category:
Gears, brakes, couplings and engines
News Release from: Ruland Manufacturing Co | Subject: Ruland zinc-plated shaft collars
Edited by the Engineeringtalk Editorial
Team on 16 April 2008
Low-cost shaft collars resist corrosion
All of Ruland's yellow zinc parts are plated using a RoHS-compliant trivalent process instead of the noncompliant hexavalent process.
Ruland is now offering lead-free carbon steel shaft collars with RoHS-compliant yellow zinc plating The zinc plating offers good anti-corrosive properties yet these shaft collars are less expensive than stainless steel alternatives
This article was originally published on Engineeringtalk on 15 Jul 2003 at 8.00am (UK)
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All of Ruland's yellow zinc parts are plated using a RoHS-compliant trivalent process instead of the noncompliant hexavalent process.
Zinc-plated shaft collars have less holding power than their black oxide finished carbon steel counterparts.
This is due to the reduced coefficient of friction caused by the zinc plating.
However, performance of zin- plated parts that use plated, high-strength alloy steel hardware is still greater than that of stainless steel parts, whose holding power suffers from the lower physical properties of stainless steel screws.
Ruland offers collars in a variety of materials including type 303 stainless steel, type 316 stainless steel for increased corrosion resistance, aluminium, black oxide carbon steel and engineered plastic.
The shaft collars are available in one- and two-piece clamp-style designs with bore sizes from 1/8 to 6in and 3 to 80mm.
Clamp-style collars do not mar the shaft, provide higher holding power and are more easily adjustable when compared to set screw type shaft collars.
All Ruland shaft collars are manufactured with high face to bore perpendicularity.
Precise shaft collar face to bore relationship ensures that components are both properly positioned and not tilted on the shaft.
Collar face perpendicularity also ensures even pressure on interfaced components.
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