JR12x15x12,5 Inner Rings KOYO / NTN Interchange

JR12x15x12,5 Inner Rings is a precision ground, through-hardened component designed for use with K series needle roller and cage assemblies or HK series drawn cup bearings. They provide a hardened raceway when the shaft cannot serve this function.

We can supply both standard K series models and interchangeable replacements compatible with INA, SKF, and IKO.

Below are examples of models we regularly produce and export:

IR-222820, JR6x9x8JS1, JR60x68x35, JR38x43x20, JR17x22x16JS1, IR-202420, JRZ30x35x20JS1, IR-243220, JR9x12x16, JR6x10x10JS1, IR-364424, IR-404824, IR-263220, JR90x105x63, IR-384828, JR7x10x10,5, JR22x28x17, IR-232816, JR50x55x25, JR55x60x25, JR8x12x10JS1, JR65x73x35, IR-485632, JR30x35x32, JR45x50x40, IR-612, JR45x52x22, JR50x60x20, IR-3024, IR-081212, IR-243220, JR15x19x20, IR-812, JR14x17x17, JR35x42x36, IR-1920, JRZ12x16x14JS1, IR-1012, IR-314028, IR-1212, JR8x12x10,5, JR15x20x26, JR7x10x12, JR40x45x20,5, JR180x195x45, IR-222820, IRA-16, IRA-20, IR-364428, JR50x55x20, JR60x70x30, IR-263220, IR-1616, JR25x30x16JS1, JR17x20x16,5, JR17x22x13, JR15x19x16, JR50x55x35, IR-141820, IR-182216

Application

Heavy-duty industrial machinery

Construction equipment

Mining machinery

Steel mill equipment

Gearboxes and transmissions

Machine tool spindles

Material handling systems

Packaging

• Industrial packaging
• Neutral packaging
• Customized brand packaging available
• Single box+standard export carton packing+wooden pallet packing for export shipment

Stock & Delivery

We maintain sufficient inventory for common bearing models.

Small trial orders are welcome. Fast shipment is available for urgent orders.

Send Inquiry

We offer OEM manufacturing for non-standard bore sizes, widths, and materials. Please provide your drawing or specifications, and we will respond with a quotation within 24 hours.

Email: sales@needlebearingcn.com