IR-121612 Inner Rings China Bearing Supplier

IR-121612 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.

The following models represent common export items:

JRZ6x10x12JS1, JR20x25x30, JR32x37x20, JR12x15x16, IR-283628, IR-88, IR-101416, IR-273216, JR17x22x13, JR140x160x50, JR7x10x10,5, JR6x9x12, IR-182216, IR-243220, IR-1616, JR60x70x25, IR-182220, IR-253020, JR12x15x12,5, JR6x9x8JS1, IR-2724, IR-1516, IR-101416, JR7x10x12, JR45x50x20, IRA-16, JRZ50x58x23JS1, IR-2316, JR20x25x20, JR15x20x23, IR-162016, JR50x58x40, IR-445232, IRA-14, IR-128, IR-1316, IR-222820, JR95x110x35, IR-404828, IRA-8, JR42x47x20, IR-314024, JR7x10x16, IR-283624, IRA-20, JR25x30x17, JR35x40x22, IRA-6, IR-485632, IR-2924, IR-202420, IR-364428, IR-475632, JR12x15x16,5, IR-1820, JR100x110x40, JR22x26x20, IR-283628, JR10x14x12JS1, JR17x21x16

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