KOYO Inner Ring: 1/2 in Bore, 0.75 in OD, 0.765 in Overall Wd, Alloy Steel
The KOYO Inner Ring, model IR-812, is an inch-system needle roller bearing inner ring with a 1/2 in bore, 0.75 in OD, and 0.765 in overall width, made from alloy steel.
SKU 3G-OTH-101714
Also listed as: IR812 · IR 812
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The KOYO Inner Ring, model IR-812, is an inch-system needle roller bearing inner ring with a 1/2 in bore, 0.75 in OD, and 0.765 in overall width, made from alloy steel.
Frequently Asked Questions
What is the KOYO IR-812 inner ring used for?
The KOYO IR-812 is a needle roller bearing inner ring used in industrial machinery to provide a hardened raceway for needle rollers, reducing friction in rotating or oscillating applications such as gearboxes, pumps, and material handling equipment.
What are the specifications of the KOYO IR-812 inner ring?
The KOYO IR-812 is an inch-system needle roller bearing inner ring with a 1/2 in bore, 0.75 in OD, and 0.765 in overall width, made from alloy steel. The manufacturer part number is IR-812.
Where to buy the KOYO IR-812 inner ring worldwide?
3G Electric supplies the KOYO IR-812 inner ring worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine KOYO components to support your maintenance and production needs across industries.
How to select the correct KOYO inner ring for a needle roller bearing assembly?
To select the correct KOYO inner ring, match the bore size to your shaft diameter, the OD to the needle roller complement, and the width to the bearing housing. The IR-812 uses a 1/2 in bore, 0.75 in OD, and 0.765 in width. Always verify system of measurement and load ratings from the manufacturer.
Used in
Common applications for KOYOKOYO Products
3G Electric supplies KOYO needle roller bearing inner rings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.