Sealmaster ER-206 Cylindrical OD Bearing Setscrew Locking Collar
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- Ball bearing insert for carrying shafts with radial or radial and thrust loads
- High carbon steel rings with protective coating for corrosion resistance
- Snap ring in outer bearing surface to locate insert within housing
- Setscrew locking collar for secure attachment to shaft
- Felt and flinger seals to protect against contaminants and retain lubrication
This Sealmaster ER Series ball bearing insert with setscrew locking collar and felt seals is suitable for use in mounted bearing housings to carry shafts with radial or radial and thrust loads, such as in material handling. The outer bearing surface has a snap ring that sits in a groove to locate the insert within its housing. This bearing insert is made from ASTM International 52100 high carbon steel and its rings are coated with black oxide for corrosion resistance. The bearing insert has a heat treated inner race for wear resistance and an outer race with a brass land riding retainer that spaces the ball bearings for even load distribution and prevents contact to reduce friction, vibration, and noise. Lubrication grooves and oil holes in the outer bearing ring feed lubrication through the bearing and a tapered race profile allows lubricant to more easily flow back into the raceway. A collar extends from the bearing inner ring and setscrews lock the collar and bearing onto the shaft. This bearing allows self-realignment and compensates for static and dynamic alignment errors, has an operating temperature range of -20 to 220 degrees F, and has low friction felt and flinger seals to retain lubricant and protect against contamination that would shorten the bearing life. This ball bearing insert is suitable for use in material handling applications, such as in conveyors.
Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All roller bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.
Sealmaster manufactures bearings and bearing accessories. The company, founded in 1938 and headquartered in Elsmere, KY, meets International Organization for Standardization (ISO) standard 9001.
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