JR10x13x12,5 Inner Rings KOYO / NTN Interchange

JR10x13x12,5 Inner Rings is a precision-machined, hardened, and ground component that serve as the inner raceway for needle roller and cage assemblies (K series) or drawn cup needle roller bearings (HK/BK series). They are used when the shaft itself cannot be hardened and ground to the required specifications for direct raceway use.

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

Here are representative models frequently supplied:

JR10x14x12JS1, JR35x40x22, JR30x35x20, JRZ17x22x16JS1, JR30x35x16, IR-1220, JR10x14x12, IR-364424, JR95x110x63, IR-222820, IR-475632, JR40x45x34, JR35x40x30, IR-88, IR-1312, IR-162020, IRA-12, IR-273220, JR12x15x22,5, IR-314028, IR-101416, JR28x32x20, JR7x10x10,5, IR-232820, JR7x10x16, IR-2424, JR55x60x25, JR17x21x16, JR90x105x32, JR8x12x10,5, JR12x15x16, JR35x40x20,5, JR6x9x16, JR85x95x30, IR-212616, JR38x43x30, JR5x8x16, JR45x50x40, IR-384828, JR180x195x45, JR75x85x35, JR17x22x16JS1, JR14x17x17, JR90x100x26, IR-3024, IR-253220, IR-253220, IR-1212, JR20x25x20, JR80x90x25, IR-2016, IR-101416, IRA-4, IR-384828, IR-202420, JR15x18x16,5, JR30x35x32, JR65x75x28, IR-243220, IR-475632

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