JR25x29x30 Needle Bearing Inner Ring KOYO / NTN Interchange

JR25x29x30 Needle Bearing Inner Ring 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:

JR12x16x12JS1, JRZ45x52x23JS1, IR-2016, IR-253220, JR40x45x34, IR-222820, JR9x12x16, IR-232816, JR55x63x45, JR12x16x22, IR-283624, JR30x35x17, JR160x175x40, JR110x120x30, JR130x145x35, IR-1012, JR150x165x40, JR17x22x16, IR-88, JR12x15x12,5, JR40x45x30, JR60x70x60, IR-182220, JR45x50x40, IR-162020, JR20x25x20, JR25x30x38,5, JR15x20x13, JR40x50x20, JR30x35x20, JR5x8x8JS1, IR-2424, JR14x17x17, JR22x28x17, IR-1224, JR140x160x50, JR8x12x10,5, IR-131616, JR20x25x17, IR-273220, JR17x22x26, JRZ15x20x14JS1, JR15x20x26, IR-283628, JR7x10x12, IR-404824, IRA-14, JR25x30x26,5, JR25x29x20, IRA-7, JR17x21x16, JR7x10x10,5, IR-222820, IR-2020, JR6x9x16, IR-354428, JR17x20x20, IR-101412, JR32x37x30, IRA-10

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