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Needle Roller Inner Rings
LRB283624 Imperial Needle Roller Inner Race 1-3/4x2-1/4x38.35
| 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: 44.45mm = 1.75 (1-3/4) inch
Outside Diameter: 57.15mm = 2.25 (2-1/4) inch
Width: 38.35mm
LRT607030 Needle Roller Inner Ring 60x70x30mm
| 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: 70mm
Width: 30mm
Needle Roller Bearings
Adhesives
Lubricants
LRTZ505841 Needle Roller Inner Race 50x58x41mm
| 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: 50mm
Outside Diameter: 58mm
Width: 41mm
Major Brand Needle Roller Inner Ring IR22x28x30mm
| 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: 22mm
Outside Diameter: 28mm
Width: 30mm
Major Brand Needle Roller Inner Ring IR25x29x30mm
| 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: 29mm
Width: 30mm
LRT708025 Needle Roller Inner Ring 70x80x25mm
| 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: 70mm
Outside Diameter: 80mm
Width: 25mm
Needle Roller Bearings
Adhesives
Lubricants
Major Brand Needle Roller Inner Ring IR42x47x20mm
| 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: 42mm
Outside Diameter: 47mm
Width: 20mm
Major Brand Needle Roller Inner Ring with Lubrication Hole IR20x25x18IS1mm
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: 20mm
Outside Diameter: 25mm
Width: 18mm
IRT4530 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 lead in either side of the sleeve is [show more]... |
Inside Diameter: 45mm
Outside Diameter: 50mm
Width: 30.5mm
Major Brand Needle Roller Inner Ring IR25x30x32mm
| 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: 32mm
LRT556345 Needle Roller Inner Ring 55x63x45mm
| 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: 63mm
Width: 45mm
Needle Roller Bearings
Adhesives
Lubricants
LRB283628 Imperial Needle Roller Inner Race 1-3/4x2-1/4x44.7
| 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: 44.45mm = 1.75 (1-3/4) inch
Outside Diameter: 57.15mm = 2.25 (2-1/4) inch
Width: 44.7mm
LRT505540 Needle Roller Inner Ring 50x55x40mm
| 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: 55mm
Width: 40mm
Needle Roller Bearings
Adhesives
Lubricants
IRB3024 Imperial Inner Race 1-7/8x2-1/8x38.35
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: 47.63mm = 1.875 (1-7/8) inch
Outside Diameter: 53.98mm = 2.125 (2-1/8) inch
Width: 38.35mm
Budget Needle Roller Inner Ring IR80x90x30mm
| 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: 80mm
Outside Diameter: 90mm
Width: 30mm
Major Brand Needle Roller Inner Ring IR20x25x18mm
| 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: 18mm
LRT657530 Needle Roller Inner Ring 65x75x30mm
| 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: 65mm
Outside Diameter: 75mm
Width: 30mm
Needle Roller Bearings
Adhesives
Lubricants
IRT3540 Needle Roller Inner Race 35x40x40.5mm
| 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: 40.5mm
Budget Needle Roller Inner Ring IR80x90x35mm
| 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: 80mm
Outside Diameter: 90mm
Width: 35mm
Major Brand Needle Roller Inner Ring IR28x32x30mm
| 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: 28mm
Outside Diameter: 32mm
Width: 30mm
Major Brand Needle Roller Inner Ring with Lubrication Hole IRZ40x48x23IS1mm
| IRZ Series Inner Rings : Made from carbon chromium steel are hardened and ground to their final dimensions. To facilitate the use of the full width of the bearing surface when used with [show more]... |
Inside Diameter: 40mm
Outside Diameter: 48mm
Width: 23mm
NTN 1R45X52X40 Needle Roller Inner Race 45x52x40mm - 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]...
Inside Diameter: 45mm
Outside Diameter: 52mm
Width: 40mm
Needle Roller Bearings
Adhesives
Lubricants
NTN 1R60X70X28 Needle Roller Inner Race 60x70x28mm
- 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: 70mm
Width: 28mm
Needle Roller Bearings
Adhesives
Lubricants
IRT3245-1 Needle Roller Inner Race 32x38x45.5mm
| 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: 32mm
Outside Diameter: 38mm
Width: 45.5mm
IRT5030-1 Needle Roller Inner Race 50x55x30.5mm
| 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: 50mm
Outside Diameter: 55mm
Width: 30.5mm
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.








