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RBC Bearings B64SA 4.000 " Bore x 6.250 " OD x 2.500 " Width Single-Acting Unsealed Spherical Plain Bearing

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Specifications for this item
Overall Width
2.500  inches
Bore Diameter
4.000  inches
Bearing Number
Part Number
Brand Name
RBC Bearings
Number of Items
Material Type
52100 Bearing Quality Steel
Outside Diameter
6.250  inches
Static Load Capacity
349100  pounds
Dynamic Load Capacity
87200  pounds
System of Measurement

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Key Features

  • Designed to support heavy unidirectional thrust and combination radial/thrust loads
  • Elliptical lubricating grooves for improved lubrication flow
  • Primarily used in applications with thrust loads exceeding the capability of a radial bearing
  • Increased thrust load capacity results in reduced misalignment capability

Package Details

Shipping Weight: 11.4 pounds
Package Size: 7.6 x 6.7 x 2.9 inches

Product Description

This RBC Spherical Plain Bearing is manufactured from through-hardened 52100 bearing quality steel per ASTM A485, and heat treated to increase hardness to HRc 57 minimum for optimum wear resistance. Designed to support heavy unidirectional thrust and combination radial/thrust loads, this bearing utilizes elliptical lubricating grooves to allow grease to get to the load zone. The spherical contact surfaces are precision ground to maximize surface-to-surface contact of inner and outer rings. This bearing is phosphate treated prior to coating with a dry film lubricant for corrosion resistance. RBC Bearings has been providing bearing solutions to our customers since 1919. A publicly-traded company (NASDAQ: ROLL), RBC currently has 23 manufacturing facilities worldwide, with 18 located in the USA.

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