JR8x12x10 Needle Roller Bearing Inner Rings KOYO / NTN Interchange

JR8x12x10 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.

Custom orders are welcome, and interchangeable replacements for common international brands (INA,FAG,KOYO,NTN SKF, IKO) are also available.

Below is a selection of typical models from our production:

JR90x105x63, IR-151820, IR-128, IR-101416, JR15x20x13, JR5x8x8JS1, JR20x25x30, IR-1816, JR40x50x20, IR-253220, IR-2824, IR-273220, IR-68, JR22x26x20, JR130x150x50, IR-354428, JR6x9x8JS1, JR45x55x20JS1, IRA-5, JR17x22x26, IR-314028, JR12x16x13, IR-445232, JR45x50x25,5, JR30x35x26, JR40x45x34, JR38x43x20, JR35x42x20JS1, JR20x25x20, JR7x10x16, IR-2316, IR-141820, JR20x25x26, IR-283628, JR28x32x20, JR70x80x54, JR17x22x13, JR17x20x20, IR-364428, JR7x10x10,5, IRA-4, JR32x40x36, JR90x100x30, JR50x55x25, JR100x110x30, JRZ17x22x16JS1, JR6x10x10, JR17x20x30,5, JR50x55x35, JR32x40x20, JR25x30x26,5, JR30x35x32, IR-131616, IR-212616, IR-222820, JR100x110x40, JR50x60x20JS1, JR15x20x26, IR-283628, IR-263220

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