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Sealmaster - Material Handling Mounted Ball Bearings
Sealmaster material handling mounted ball bearings feature cast iron housings, an extended inner race insert bearing with ball riding nylon retainer. The insert features a rivet to prevent outer ring rotation. It is available with setscrew, eccentric, or exclusive SKWEZLOC® concentric locking collar option snap-on end cover. The contact seal, with black oxide treated flinger provides a good balance between contaminant entry, grease loss and friction. These bearings are available in unit material handling industry bore sizes and housing configurations.
Housing Styles
Pillow Block, Flanges, Hanger, Take up
Locking Styles
Setscrew and Concentric
Bore Diameter Size Range
1" to 2 7/16"
Housing Materials
Cast Iron
Skwezloc® Concentric Locking Collar
SKWEZLOC is a concentric collar clamp design that results in near-perfect concentricity of the shaft to the bearing bore. It also provides near-perfect ball path roundness and reduces fretting corrosion. This design eliminates the shaft damage of setscrew locking, and minimizes bearing induced vibration for smoother quieter operation. The collar has a TORX head cap screw that outlasts stripping 12 times longer than hex head cap screws.
Setscrew Locking
120° spaced, balanced three point contact minimizes inner ring distortion vibration, reduces noise, and improves reliability. Precision manufactured diamond faceted setscrews contributes to improved clamping and resistance to back out.
Sealing
Positive contact molded nitrile rubber contact seal with an auxiliary fliger element standard. The contact seal allows grease purge and helps keep contamination out of the bearing. The flinger provides a rotating shield that helps direct contamination away from the seal.
Sealed for Life
The Sealmaster Material Handling Bearings are supplied with a plug in the housing to prevent relubrication. A standard lubrication fittig is supplied loose in the box for those customers who prefer relubricating the bearings.
End Caps
The Sealmaster Material Handling Bearing housings are machined to accept an optional, safety-yellow polymer snap-on end cap to cover rotating shafts. This allows users to better conform to OSHA requirements for personal protection from rotating shafts. The end cap can easily snap into the housing without the need for special tooling.
Anti-Rotation Rivet
An Anti-rotation rivet prevents outer ring creep, or rotation, within the housing.
Zone Hardened Inner Race
Sealmaster incorporates a unique heat treat process that hardens the inner race only where it is needed, under the ball path. The zone hardened inner race provides improved lock reliability due to less distortion at the setscrew location. Additionally, improved thread conformity results in better clamping and resistance to setscrew back-out.
Solid Cast Iron Base
Solid bases are standard on Sealmaster Material Handling ball bearing pillow blocks. The solid base provides improved stability as well as resistance to shock and vibration. This prevents frame buckling under base compared to semi-solid and hollow mounting bases.
Nameplate
Metal nameplate riveted to the housing allows for easy identification even after years of operation.