IRA-12 Inner Rings China Bearing Supplier

IRA-12 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.

Below are examples of models we regularly produce and export:

JR17x21x16, JR17x22x16, IR-283628, JR45x55x40, JR70x80x30, IR-141816, IR-68, JR25x30x20, JR65x73x25, JR20x25x16JS1, JR130x145x35, IR-3024, JR140x160x50, JR22x28x20,5, JR40x48x22, IR-2324, IR-131616, IRA-5, IR-131616, IR-101416, JR35x40x40, JR5x8x8JS1, JR10x14x12JS1, IR-151816, IR-1812, JR50x60x25, JR17x22x16JS1, IR-2424, JR20x24x20, JR6x10x10JS1, JR50x60x20JS1, JR35x40x22, JR60x70x60, IR-1920, IR-232820, JR80x90x30, IR-243220, JR17x22x26, JR140x155x35, IR-283628, JR30x38x20JS1, JR12x16x16, IR-242820, JR150x165x40, JR55x63x25, IR-324024, JR32x37x30, IR-212620, JR7x10x16, JR17x21x20, IR-202420, JR50x55x20, JRZ30x35x18JS1, JR28x32x17, JR95x110x35, JR28x32x30, IR-222820, JR90x105x63, JR15x20x26, IR-2724

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