JR25x30x20,5 Needle Roller Bearing Inner Rings KOYO / NTN Interchange

JR25x30x20,5 Needle Roller Bearing 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:

JR40x50x20, JR65x75x28, IR-273220, IR-404828, IR-612, IRA-5, IR-283624, JR8x12x10,5, JR20x25x38,5, JR15x20x13, JR20x25x16JS1, JRZ35x42x23JS1, JR17x22x32, JR6x9x8JS1, JR65x72x25, IR-061012, JR22x28x20,5, JR40x48x40, IR-182216, JR70x80x30, IR-68-1, JR10x14x20, JRZ6x10x12JS1, JR45x50x25,5, JR17x20x16,5, JR90x105x32, JR90x100x26, IR-1220, JR17x22x23, IR-242816, IR-404828, IR-192420, IR-151816, IR-88, JR50x60x20, IR-2724, IR-1212, JR8x12x12,5, IR-445228, JR50x60x40, IR-222820, JR17x20x30,5, IR-812, JR32x40x36, IR-283628, JR50x55x40, IR-475632, JR25x30x38,5, IR-1016, JR85x95x36, IR-485632, JR30x35x30, JR50x55x25, JR12x15x22,5, JR40x45x34, JR35x42x20JS1, JR90x105x63, JR130x145x35, IR-1316, JR60x68x25

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