JR12x16x12JS1 Inner Rings INA Replacement

JR12x16x12JS1 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:

IR-242816, IR-141820, IR-1416, IR-404824, JR40x45x40, JR70x80x60, JR95x105x26, IR-1012, JR40x48x40, JR8x12x12,5, JR20x25x38,5, JR32x37x30, JRZ17x22x16JS1, JR30x35x16, JR22x28x30, JR25x30x26,5, IR-212620, JR10x14x13, JR12x16x20, JR32x40x20, JR20x25x26,5, JR85x95x26, JR30x35x20, IR-2924, IR-445228, JR45x50x25,5, JR25x30x30, IR-3024, IR-162020, JR90x100x36, IR-1816, JR60x68x45, JR45x52x23, JR50x60x40, JR120x130x30, JR45x52x40, IRA-12, JR20x25x16JS1, JR170x185x45, IR-2916, JR42x47x30, IR-475632, JR25x30x20,5, JR15x19x16, IR-253020, IR-273220, IR-2016, IR-273216, IR-1616, IR-354428, JR160x175x40, JR85x100x35, JR32x37x20, JR80x90x25, JR6x9x8JS1, JR35x40x34, JR8x12x10, IR-151816, JR25x30x20, IR-101416

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