KOYO Roller Thrust Bearing Washer: 5/16 in Bore Dia, 3/4 in Outside Dia
The KOYO Roller Thrust Bearing Washer (SKU 779KM5, MPN TRA-512) is a needle roller thrust bearing washer with a 5/16 in bore diameter, 3/4 in outside diameter, and 1/32 in washer thickness. It is compatible with…
SKU 3G-OTH-102764
Need installation or engineering help?
Ask a question
Product Description
The KOYO Roller Thrust Bearing Washer (SKU 779KM5, MPN TRA-512) is a needle roller thrust bearing washer with a 5/16 in bore diameter, 3/4 in outside diameter, and 1/32 in washer thickness. It is compatible with bearing 512.
Frequently Asked Questions
What is a KOYO Roller Thrust Bearing Washer used for?
A KOYO Roller Thrust Bearing Washer is used as a component in needle roller thrust bearings to support axial loads in rotating machinery. It is commonly applied in automotive transmissions, industrial gearboxes, and machine tool spindles where compact axial load handling is required.
What are the specifications of the KOYO TRA-512 bearing washer?
The KOYO TRA-512 bearing washer has a 5/16 in bore diameter, 3/4 in outside diameter, and 1/32 in washer thickness. It is compatible with bearing 512 and is manufactured by KOYO under part number TRA-512. This washer is designed for use in needle roller thrust bearing assemblies.
Where to buy KOYO TRA-512 bearing washers worldwide?
KOYO TRA-512 bearing washers are available to order through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on sourcing this KOYO component.
How to select the correct KOYO thrust bearing washer?
To select the correct KOYO thrust bearing washer, match the bore diameter, outside diameter, and washer thickness to your bearing assembly requirements. The TRA-512 washer fits bearing 512 with a 5/16 in bore and 3/4 in outside diameter. Always verify compatibility with your existing bearing and shaft dimensions before ordering.
Used in
Common applications for KOYOKOYO Products
3G Electric supplies KOYO needle roller thrust bearing washers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













