JR40x50x20 Needle Roller Bearing Inner Rings KOYO / NTN Interchange

JR40x50x20 Needle Roller Bearing 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 is a selection of typical models from our production:

JR110x125x40, IR-121612, IR-2324, JR120x130x30, IR-1312, IR-273216, IR-232820, IR-445232, IR-081212, JR20x25x20, JR30x35x30, IRA-20, JR8x12x10,5, JR10x14x11JS1, IR-283628, JR45x50x35, IR-2220, JR55x60x25, JR35x42x20JS1, JR170x185x45, IR-212620, JR17x21x20, JR110x120x30, JR30x35x26, JR90x100x30, JR20x24x20, IR-283624, JR20x25x16JS1, JR55x63x25, IR-314028, JR40x45x30, JR28x32x20, IR-121616, IR-1316, IR-612, IR-131616, IR-324024, IR-273220, JR90x100x26, IR-141820, IR-182220, JRZ12x16x14JS1, JR70x80x54, JR95x110x63, IR-445228, IR-4016, IR-485632, JR15x20x26, JRZ6x10x12JS1, JR42x47x30, JR85x95x30, IR-475632, JR20x25x32, JR6x9x12, JR15x19x16, IR-141816, JR8x12x12,5, JR25x30x38,5, IRA-6, IR-222820

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