KOYO IR-128 Needle Roller Bearing Inner Ring
The KOYO IR-128 is an inch-system needle roller bearing inner ring with a 3/4 in bore, 1 in OD, and 0.515 in overall width, made from alloy steel. This component is designed for use with needle roller bearings to…
SKU 3G-OTH-101760
Also listed as: IR128 · IR 128
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
Need installation or engineering help?
Ask a question
Product Description
The KOYO IR-128 is an inch-system needle roller bearing inner ring with a 3/4 in bore, 1 in OD, and 0.515 in overall width, made from alloy steel. This component is designed for use with needle roller bearings to provide a hardened raceway for the rolling elements.
Frequently Asked Questions
What is the KOYO IR-128 inner ring used for?
The KOYO IR-128 is a needle roller bearing inner ring that provides a hardened raceway for needle rollers in inch-system bearing assemblies. It is commonly used in industrial machinery, automotive transmissions, and gearboxes where compact radial load support is required.
What are the specifications of the KOYO IR-128?
The KOYO IR-128 has a 3/4 in bore, 1 in OD, and 0.515 in overall width. It is made from alloy steel and uses an inch system of measurement. The manufacturer part number is IR-128. This inner ring is designed to pair with needle roller bearings for reliable operation.
Where to buy the KOYO IR-128 worldwide?
3G Electric supplies the KOYO IR-128 needle roller bearing inner ring worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this component.
How to select the correct KOYO inner ring for a needle roller bearing?
To select the correct KOYO inner ring, match the bore, OD, and overall width to your bearing assembly's requirements. The IR-128 uses inch dimensions: 3/4 in bore, 1 in OD, and 0.515 in width. Ensure the inner ring is made from hardened alloy steel to provide a proper raceway for the needle rollers.
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.
