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Needle Roller Inner Rings
NTN 1R30X37X22 Needle Roller Inner Race 30x37x22mm
- 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]...
Inside Diameter: 30mm
Outside Diameter: 37mm
Width: 22mm
Needle Roller Bearings
Adhesives
Lubricants
Major Brand Needle Roller Inner Ring with Lubrication Hole IR25x30x16IS1mm
Inner Rings : Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the sleeve [show more]... |
Inside Diameter: 25mm
Outside Diameter: 30mm
Width: 16mm
LRB162020 Imperial Needle Roller Inner Race 1x1-1/4x32
| Imperial Inner Rings:Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the [show more]... |
Inside Diameter: 25.4mm = 1 inch
Outside Diameter: 31.75mm = 1.25 (1-1/4) inch
Width: 32mm
Budget Needle Roller Inner Ring LR45x50x25.5mm
Budget LR Series Inner Rings: Made from carbon chromium steel and hardened. The bore and outside diameter are ground, however the sides are not ground and the edges are only smoothed. [show more]... |
Inside Diameter: 45mm
Outside Diameter: 50mm
Width: 25.5mm
Major Brand Needle Roller Inner Ring IR20x25x30mm
| Inner Rings : Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the sleeve is [show more]... |
Inside Diameter: 20mm
Outside Diameter: 25mm
Width: 30mm
NTN 1R32X37X30 Needle Roller Inner Race 32x37x30mm
- 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]...
Inside Diameter: 32mm
Outside Diameter: 37mm
Width: 30mm
Needle Roller Bearings
Adhesives
Lubricants
Major Brand Needle Roller Inner Ring IR30x35x17mm
| Inner Rings : Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the sleeve is [show more]... |
Inside Diameter: 30mm
Outside Diameter: 35mm
Width: 17mm
LRT606825 Needle Roller Inner Ring 60x68x25mm
| IKO LRT Inner Rings: These inner rings are heat-treated and finished by grinding to a high degree of accuracy. LRT series inner rings are economical and can be used with RNA49, RNA69, [show more]... |
Inside Diameter: 60mm
Outside Diameter: 68mm
Width: 25mm
Needle Roller Bearings
Adhesives
Lubricants
LRT606825-1 Needle Roller Inner Ring 60x68x25mm
| IKO LRT Inner Rings: These inner rings are heat-treated and finished by grinding to a high degree of accuracy. LRT series inner rings are economical and can be used with RNA49, RNA69, [show more]... |
Inside Diameter: 60mm
Outside Diameter: 68mm
Width: 25mm
Needle Roller Bearings
Adhesives
Lubricants
LRT455030 Needle Roller Inner Ring 45x50x30.5mm
| IKO LRT Inner Rings: These inner rings are heat-treated and finished by grinding to a high degree of accuracy. LRT series inner rings are economical and can be used with RNA49, RNA69, [show more]... |
Inside Diameter: 45mm
Outside Diameter: 50mm
Width: 30.5mm
Needle Roller Bearings
Adhesives
Lubricants
LRT404530-1 Needle Roller Inner Ring 40x45x30.5mm
| IKO LRT Inner Rings: These inner rings are heat-treated and finished by grinding to a high degree of accuracy. LRT series inner rings are economical and can be used with RNA49, RNA69, [show more]... |
Inside Diameter: 40mm
Outside Diameter: 45mm
Width: 30.5mm
Needle Roller Bearings
Adhesives
Lubricants
LRT506020 Needle Roller Inner Ring 50x60x20mm
| IKO LRT Inner Rings: These inner rings are heat-treated and finished by grinding to a high degree of accuracy. LRT series inner rings are economical and can be used with RNA49, RNA69, [show more]... |
Inside Diameter: 50mm
Outside Diameter: 60mm
Width: 20mm
Needle Roller Bearings
Adhesives
Lubricants
Budget Needle Roller Inner Ring LR50x55x20.5mm
Budget LR Series Inner Rings: Made from carbon chromium steel and hardened. The bore and outside diameter are ground, however the sides are not ground and the edges are only smoothed. [show more]... |
Inside Diameter: 50mm
Outside Diameter: 55mm
Width: 20.5mm
Major Brand Needle Roller Inner Ring IR15x20x23mm
| Inner Rings : Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the sleeve is [show more]... |
Inside Diameter: 15mm
Outside Diameter: 20mm
Width: 23mm
Major Brand Needle Roller Inner Ring LR35x40x12.5mm
LR Series Inner Rings : Made from carbon chromium steel and hardened. The bore and outside diameter are ground, however the sides are not ground and the edges are only smoothed. Used [show more]... |
Inside Diameter: 35mm
Outside Diameter: 40mm
Width: 12.5mm
IRB2220 Imperial Inner Race 1-3/8x1-5/8x32
Inner Rings: Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a small lead in either side of the [show more]... |
Inside Diameter: 34.93mm = 1.375 (1-3/8) inch
Outside Diameter: 41.28mm = 1.625 (1-5/8) inch
Width: 32mm
LRB182216 Imperial Needle Roller Inner Race 1-1/8x1-3/8x25.65
| Imperial Inner Rings:Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the [show more]... |
Inside Diameter: 28.58mm = 1.125 (1-1/8) inch
Outside Diameter: 34.93mm = 1.375 (1-3/8) inch
Width: 25.65mm
LRB182220 Imperial Needle Roller Inner Race 1-1/8x1-3/8x32
| Imperial Inner Rings:Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the [show more]... |
Inside Diameter: 28.58mm = 1.125 (1-1/8) inch
Outside Diameter: 34.93mm = 1.375 (1-3/8) inch
Width: 32mm
LRT556035 Needle Roller Inner Ring 55x60x35mm
| IKO LRT Inner Rings: These inner rings are heat-treated and finished by grinding to a high degree of accuracy. LRT series inner rings are economical and can be used with RNA49, RNA69, [show more]... |
Inside Diameter: 55mm
Outside Diameter: 60mm
Width: 35mm
Needle Roller Bearings
Adhesives
Lubricants
Budget Needle Roller Inner Ring IR55x63x45mm
| Budget Inner Rings: Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the [show more]... |
Inside Diameter: 55mm
Outside Diameter: 63mm
Width: 45mm
Major Brand Needle Roller Inner Ring IR25x30x30mm
| Inner Rings : Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the sleeve is [show more]... |
Inside Diameter: 25mm
Outside Diameter: 30mm
Width: 30mm
Major Brand Needle Roller Inner Ring LR30x35x20.5mm
LR Series Inner Rings : Made from carbon chromium steel and hardened. The bore and outside diameter are ground, however the sides are not ground and the edges are only smoothed. Used [show more]... |
Inside Diameter: 30mm
Outside Diameter: 35mm
Width: 20.5mm
IRT2530-1 Needle Roller Inner Race 25x30x30.5mm
| Inner Rings: Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the sleeve is [show more]... |
Inside Diameter: 25mm
Outside Diameter: 30mm
Width: 30.5mm
IRT4020 Needle Roller Inner Race 40x45x20.5mm
| Inner Rings: Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the sleeve is [show more]... |
Inside Diameter: 40mm
Outside Diameter: 45mm
Width: 20.5mm
IRT4520 Needle Roller Inner Race 45x50x20.5mm
| Inner Rings: Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a lead in either side of the sleeve is [show more]... |
Inside Diameter: 45mm
Outside Diameter: 50mm
Width: 20.5mm
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.







