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Koyo NTA-512 Needle Roller and Cage Thrust Assembly, Open, Steel Cage, Inch, 5/16' ID, 3/4' OD, 5/64' Width, 2.5lbf Static Load Capacity, 15lbf Dynamic Load Capacity

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$11.00

$ 4 .99 $4.99

In Stock
  • Thrust needle roller and cage assembly for applications with high dynamic loads
  • High axial load capacity with reduced cross-section for use in restricted spaces
  • Steel cage guides and evenly spaces rollers for reduced friction, vibration, and noise
  • Through-hardened, high-carbon chromium steel rollers for heat tolerance and durability under heavy loads
  • Meets ANSI/ABMA standard 21.2 for quality assurance



Michael J
Reviewed in the United States on September 15, 2014
I purchased a pair of these to replace the simple nylon thrust bearings in the windage adjustment on a Caldwell Rock BR rifle rest. The roller bearings are much smoother, and have none of the stiction found in the stock bearings. If you do get one or more of these, remember that you also need a pair of thrust bearing washers in most cases; the matching units for this are the Koyo TRA-512 Thrust Roller Bearing Washers.(Bearing experts will of course already know this ;-)
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