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Needle Roller Inner Rings
NTN 1R50X60X28 Needle Roller Inner Race 50x60x28mm
- 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: 50mm
Outside Diameter: 60mm
Width: 28mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R55X60X25 Needle Roller Inner Race 55x60x25mm
- 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: 55mm
Outside Diameter: 60mm
Width: 25mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R55X60X35 Needle Roller Inner Race 55x60x35mm
- 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: 55mm
Outside Diameter: 60mm
Width: 35mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R60X68X25 Needle Roller Inner Race 60x68x25mm
- 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: 60mm
Outside Diameter: 68mm
Width: 25mm
Needle Roller Bearings
Adhesives
Lubricants
Budget Needle Roller Inner Ring IR75x85x25mm
| 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: 75mm
Outside Diameter: 85mm
Width: 25mm
LRTZ455030 Needle Roller Inner Race 45x50x30.5mm
| Inner Rings: Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use with needle roller bearings a small lead chamfer on either side of [show more]... |
Inside Diameter: 45mm
Outside Diameter: 50mm
Width: 30.5mm
LRB242816 Imperial Needle Roller Inner Race 1-1/2x1-3/4x25.65
| 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: 38.1mm = 1.5 (1-1/2) inch
Outside Diameter: 44.45mm = 1.75 (1-3/4) inch
Width: 25.65mm
Major Brand Needle Roller Inner Ring IR45x50x25mm
| 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: 25mm
Major Brand Needle Roller Inner Ring IR35x40x17mm
| 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: 35mm
Outside Diameter: 40mm
Width: 17mm
Major Brand Needle Roller Inner Ring IR25x30x38.5mm
| 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: 38.5mm
Budget Needle Roller Inner Ring IR60x68x45mm
| 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: 60mm
Outside Diameter: 68mm
Width: 45mm
IRB2424 Imperial Inner Race 1-1/2x1-3/4x38.35
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: 38.1mm = 1.5 (1-1/2) inch
Outside Diameter: 44.45mm = 1.75 (1-3/4) inch
Width: 38.35mm
LRT404840 Needle Roller Inner Ring 40x48x40mm
| 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: 48mm
Width: 40mm
Needle Roller Bearings
Adhesives
Lubricants
IRT3525 Needle Roller Inner Race 35x40x25.5mm
| 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: 35mm
Outside Diameter: 40mm
Width: 25.5mm
IRT4025 Needle Roller Inner Race 40x45x25.5mm
| 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: 25.5mm
NTN 1R45X50X35 Needle Roller Inner Race 45x50x35mm
- 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: 45mm
Outside Diameter: 50mm
Width: 35mm
Needle Roller Bearings
Adhesives
Lubricants
Major Brand Needle Roller Inner Ring IR17x24x20mm
| 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: 17mm
Outside Diameter: 24mm
Width: 20mm
Budget Needle Roller Inner Ring IR70x80x35mm
| 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: 70mm
Outside Diameter: 80mm
Width: 35mm
NTN 1R45X55X22 Needle Roller Inner Race 45x55x22mm
- 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: 45mm
Outside Diameter: 55mm
Width: 22mm
Needle Roller Bearings
Adhesives
Lubricants
IRT2538-1 Needle Roller Inner Race 25x30x38.5mm
| 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: 38.5mm
IRT3030 Needle Roller Inner Race 30x35x30.5mm
| 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: 30mm
Outside Diameter: 35mm
Width: 30.5mm
NTN 1R35X42X36 Needle Roller Inner Race 35x42x36mm
- 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: 35mm
Outside Diameter: 42mm
Width: 36mm
Needle Roller Bearings
Adhesives
Lubricants
Major Brand Needle Roller Inner Ring LR50x55x20.5mm
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: 50mm
Outside Diameter: 55mm
Width: 20.5mm
LRB222616 Imperial Needle Roller Inner Race 1-3/8x1-5/8x25.65
| 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: 34.93mm = 1.375 (1-3/8) inch
Outside Diameter: 41.28mm = 1.625 (1-5/8) inch
Width: 25.65mm
LRB222620 Imperial Needle Roller Inner Race 1-3/8x1-5/8x32
| 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: 34.93mm = 1.375 (1-3/8) inch
Outside Diameter: 41.28mm = 1.625 (1-5/8) inch
Width: 32mm
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.







