IR-253020 Inner Rings KOYO / NTN Interchange

IR-253020 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.

Here are representative models frequently supplied:

JR20x25x32, JR70x80x30, JR25x29x30, JR32x40x36, JR12x16x12, JR17x21x20, IR-232816, IRA-20, JR32x37x30, IR-404828, JR90x100x36, JR25x30x16JS1, JR140x155x35, JRZ35x42x23JS1, IR-182220, JR10x14x12, JR150x165x40, JR30x38x20JS1, IR-1416, JR55x60x35, JR45x50x25,5, JR25x30x30, JR17x21x16, JR22x26x20, IR-1812, IR-061012, JR40x45x20,5, JR17x22x13, JR45x55x20, JR25x30x32, JR32x40x20, JR45x55x20JS1, JR30x35x26, IR-202416, JR45x55x22, IR-314028, JR6x10x10, JR30x35x30, JR75x85x25, JR17x22x16, JR22x26x16, IR-253020, JR12x16x20, JR40x50x20, JR30x35x16, IR-242820, IR-101416, IR-324024, JR38x43x30, JRZ15x20x14JS1, JR50x60x20JS1, JR130x150x50, JR60x70x30, JR65x75x60, JR65x73x25, IR-364428, JR90x100x30, JR35x44x22, JR17x20x30,5, IR-1016

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