JR45x55x20 Inner Rings SKF Needle Bearing Inner Ring Alternative

JR45x55x20 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 is a selection of typical models from our production:

JRZ12x16x14JS1, JR25x29x30, IR-131616, JR90x105x32, IR-283628, IR-1216, IR-1224, JR55x63x25, IR-314024, IRA-16, IR-445228, IR-1016, JR7x10x10,5, JR25x30x26, JR45x52x22, JR85x100x63, IR-232820, JR10x14x13, IR-1312, JR22x26x16, IR-141816, JR65x72x25, JR70x80x30, JR50x55x20, IR-612, JR65x72x45, JR15x18x16,5, JR75x85x35, JR32x40x20, JR15x20x23, JR70x80x60, JR12x16x12JS1, JR60x68x35, JR28x32x17, IR-202420, IR-263220, JR20x25x16JS1, JR35x42x20JS1, JR95x110x63, JR22x28x20,5, IR-384828, JR90x100x26, IR-2724, JR15x20x16, JR75x85x25, JR120x135x45, JR90x100x36, JR30x35x32, JR20x25x16, IRA-6, JR100x115x40, JRZ35x42x23JS1, JR22x28x30, IR-1920, JR30x35x20, JR60x68x25, IR-2424, IR-283624, IR-151816, JR30x38x20JS1

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