JRZ50x58x23JS1 Inner Rings INA Replacement

JRZ50x58x23JS1 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.

Production can be arranged based on order quantity and delivery schedule. We also offer interchangeable replacements for popular international brands such as INA, SKF, and IKO.

Here are representative models frequently supplied:

IRA-6, IR-2916, JR40x48x40, JR15x20x23, JR10x14x16, JR22x26x16, IRA-3, IR-242816, JR90x105x63, IR-445232, IR-2824, IR-364428, JR28x32x20, JR65x75x30, JR17x20x30,5, JR95x105x36, JR45x50x25,5, IR-1016, IR-283624, IR-212620, JR120x135x45, IR-324028, JR30x35x16, IR-081216, IR-404828, JR35x42x20, JR40x48x22, IR-2724, IR-2924, JR17x20x20, IR-445228, IR-354428, JR38x43x20, JR38x43x30, JR65x75x28, IR-1616, JR50x60x25, JR10x14x11JS1, JR85x100x35, IR-354428, IR-131616, JR65x73x35, JR20x25x26, JR140x155x35, IR-202416, JR75x85x30, JR35x42x36, IR-141820, IR-445228, JR7x10x12, JR35x44x22, IR-1012, IR-2324, IR-121612, JR80x90x35, IRA-5, JR28x32x30, JR65x72x45, IR-222820, JR180x195x45

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