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Needle Roller Inner Rings
NTN 1R33X37X13 Needle Roller Inner Race 33x37x13mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 33mm
Outside Diameter: 37mm
Width: 13mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R340X380X118 Needle Roller Inner Race 340x380x118mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 340mm
Outside Diameter: 380mm
Width: 118mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X40X125 Needle Roller Inner Race 35x40x12.5mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 40mm
Width: 12.5mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X40X165 Needle Roller Inner Race 35x40x16.5mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 40mm
Width: 16.5mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X40X17 Needle Roller Inner Race 35x40x17mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 40mm
Width: 17mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X40X205 Needle Roller Inner Race 35x40x20.5mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 40mm
Width: 20.5mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X40X30V4 Needle Roller Inner Race 35x40x30mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 40mm
Width: 30mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X40X34 Needle Roller Inner Race 35x40x34mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 40mm
Width: 34mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X40X40 Needle Roller Inner Race 35x40x40mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 40mm
Width: 40mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X42X20 Needle Roller Inner Race 35x42x20mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 42mm
Width: 20mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X42X21D Needle Roller Inner Race 35x42x21mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 42mm
Width: 21mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X42X23D Needle Roller Inner Race 35x42x23mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 42mm
Width: 23mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X42X27 Needle Roller Inner Race 35x42x27mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 42mm
Width: 27mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R35X43X22 Needle Roller Inner Race 35x43x22mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 35mm
Outside Diameter: 43mm
Width: 22mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R38X43X20 Needle Roller Inner Race 38x43x20mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 38mm
Outside Diameter: 43mm
Width: 20mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R38X43X30 Needle Roller Inner Race 38x43x30mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 38mm
Outside Diameter: 43mm
Width: 30mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R40X45X165 Needle Roller Inner Race 40x45x165mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 40mm
Outside Diameter: 45mm
Width: 165mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R40X45X17 Needle Roller Inner Race 40x45x17mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 40mm
Outside Diameter: 45mm
Width: 17mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R40X45X205 Needle Roller Inner Race 40x45x20.5mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 40mm
Outside Diameter: 45mm
Width: 20.5mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R40X45X26.5 Needle Roller Inner Race 40x45x26.5mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 40mm
Outside Diameter: 45mm
Width: 26.5mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R40X45X34 Needle Roller Inner Race 40x45x34mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 40mm
Outside Diameter: 45mm
Width: 34mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R40X45X40 Needle Roller Inner Race 40x45x40mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 40mm
Outside Diameter: 45mm
Width: 40mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R40X48X22 Needle Roller Inner Race 40x48x22mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 40mm
Outside Diameter: 48mm
Width: 22mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R40X48X23D Needle Roller Inner Race 40x48x23mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 40mm
Outside Diameter: 48mm
Width: 23mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R40X48X30 Needle Roller Inner Race 40x48x30mm - Allow 2-3 Days
- Precision-Ground for superior performance
- Exceptional wear resistance and durability
- Optimized load distribution, smooth rotation, and long-term system reliability
NTN Inner Races: These inner races are engineered for precision, durability, and reliability in high-performance applications. Manufactured from high-quality, hardened bearing steel, it [show more]...
Limited Stock
Inside Diameter: 40mm
Outside Diameter: 48mm
Width: 30mm
Needle Roller Bearings
Adhesives
Lubricants
Needle Roller Inner Rings
Used in situations where a larger width is needed but run out tolerances are less important, needle roller inner rings are an economical answer that can be used in conjunction with a range of cage type and needle roller bearings.
Here at Simply Bearings, we supply needle roller inner rings made from hardened carbon chromium steel. They have a ground bore and outer diameter with sides and edges that are only smoothed. We stock needle roller inner rings with inside diameters from 5mm up to 440mm and outside diameters from 7mm to 490mm, plus widths from 9.75mm up to 160mm. The rings are produced by major brands including IKO and economy versions are available too, for those on a tight budget.
Selecting the correct product from our website is a simple process, just pick the dimensions you want from the drop-down menus shown at the top of the product category page. If you need more detail on a specific product you can click on the Technical tab from its page to see a full list of dimensions along with a sectioned drawing which should give you all the information you need to make sure you're getting the right item. If there are any questions that the website doesn't answer, you can always give our customer services team a call, or drop them an email and they'll be happy to help with your query.
When you're ready to buy, ordering from our website is fast and secure, or you can give us a call and buy over the phone if you prefer. Second class postal delivery is free of charge on all of our orders, but if you need to get hold of your needle roller inner rings faster, you can opt for first class or courier delivery at the checkout. Same day and next day services are available and the cost will be calculated for you on the website. If you're local to our warehouse you can collect your order in person, but please give us a ring first to make arrangements. Overseas orders are no problem either and we can offer low-cost delivery on our products to most part of the world.
When you order from Simply Bearings, you have the reassurance of being covered by our 90-day, no-quibble, money back guarantee. You also have the peace of mind that comes from dealing with an ISO 9001 certified company.







