Needle Roller Bearing Components
AMIGO provides inner rings and needle rollers as separate components for needle roller bearings. Inner rings are usually paired with needle roller and cage assemblies or drawn cup needle roller bearings for applications where the shaft can’t be hardened and ground.
- High Load Capacity
Needle roller bearings can support significant radial loads due to their elongated, cylindrical rollers, making them suitable for heavy-duty applications. - Hardened Steel Components
Needle roller bearing components are typically made from hardened steel, offering excellent durability and resistance to fatigue and corrosion. - Axial Displacement Accommodation
Wider inner rings allow for greater axial displacement, making them flexible for dynamic applications.
AMIGO needle roller bearing components with machined rings are widely used in various industries. Their availability matches their versatility across numerous applications in a wide range of designs, variants, and sizes. Examples of applications include:
- Automotive Industry
- Aerospace
- Construction Equipment
- Agricultural Machinery
- Industrial Gearboxes
- Machine Tools
- Mining and Drilling
- Electric Motors
- Textile Machinery
- Robotics
Needle Roller Bearing Components - Designs and Variants
IR Series Inner Rings
IR series inner rings are the standard SKF inner rings for needle roller bearings. They are hardened and ground, featuring a precision ground raceway surface with lead-in chamfers on both sides. These chamfers facilitate assembly and protect the seal lips from damage during mounting. Some sizes are available with a lubrication hole, and additional lubrication holes can be requested. These rings can also be provided with a pre-ground raceway and a machining allowance, allowing them to be finish ground after mounting when extremely tight geometrical tolerances are required.
LR Series Inner Rings
LR series inner rings are hardened, and the bore and raceway diameter are ground. The side faces are turned, and the edges are smoothed. These rings provide a cost-effective bearing arrangement for applications where larger run-out and width tolerances are less critical.
Both Inner Ring Series
Both the IR and LR inner ring series are available in different widths. They permit greater axial displacement of the shaft relative to the housing when they are wider than standard. These rings also provide an excellent counterface for the lips of contact seals. To prevent axial movement, they should be located on both sides, regardless of whether the ring has an interference or loose fit. One side can be located against a shoulder, while the other can be secured using a snap ring, distance ring, or nut.
Needle Roller Bearing Components Size Chart
| Designation | d [mm] | F [mm] | B [mm] |
|---|---|---|---|
| IR 50X55X35 | 50 | 55 | 35 |
| IR 50X58X22 | 50 | 58 | 22 |
| IR 50X58X40 | 50 | 58 | 40 |
| IR 50X60X20 | 50 | 60 | 20 |
| IR 50X60X25 | 50 | 60 | 25 |
| IR 50X60X28 | 50 | 60 | 28 |
| IR 50X55X20.5 | 50 | 55 | 20.5 |
| IR 55X60X35 | 55 | 60 | 35 |
| IR 55X63X25 | 55 | 63 | 25 |
| IR 55X63X45 | 55 | 63 | 45 |
| IR 55X65X28 | 55 | 65 | 28 |
| IR 60X68X25 | 60 | 68 | 25 |
| IR 60X68X35 | 60 | 68 | 35 |
| IR 60X68X45 | 60 | 68 | 45 |
| IR 60X70X25 | 60 | 70 | 25 |
| IR 60X70X28 | 60 | 70 | 28 |
| IR 65X72X45 | 65 | 72 | 45 |
| IR 65X73X25 | 65 | 73 | 25 |
| IR 65X73X35 | 65 | 73 | 35 |
| IR 70X80X25 | 70 | 80 | 25 |
| IR 70X80X30 | 70 | 80 | 30 |
| IR 70X80X35 | 70 | 80 | 35 |
| IR 70X80X54 | 70 | 80 | 54 |
| IR 75X85X25 | 75 | 85 | 25 |
| IR 75X85X30 | 75 | 85 | 30 |
| IR 75X85X35 | 75 | 85 | 35 |
| IR 75X85X54 | 75 | 85 | 54 |
Recommended Reading
Frequently Asked Questions (FAQs)
Q: How do Needle Roller Bearing Components differ from other roller bearings?
A: Needle roller bearings feature elongated rollers that are thinner compared to other roller bearings. This design allows them to handle high load capacities while minimizing the required space.
Q: What are the key features of IR series inner rings in needle roller bearings?
A: IR series inner rings are hardened, ground, and feature a precision ground raceway surface with lead-in chamfers on both sides. Some sizes come with lubrication holes, and additional holes can be added on request.
Q: How are LR series inner rings used in Needle Roller Bearings?
A: LR series inner rings are hardened and ground, with turned side faces and smoothed edges. They are typically used in applications where larger run-out and width tolerances are acceptable.
Q: What advantages do Needle Roller Bearings offer in high load applications?
A: Needle roller bearings are known for their ability to support heavy loads with a compact design, making them ideal for space-constrained applications while ensuring durability and smooth performance.
Q: Can Needle Roller Bearing Components be customized for specific applications?
A: Yes, both IR and LR series inner rings, as well as other needle roller bearing components, can be customized in terms of size, width, and lubrication features to suit specific industrial needs.
Q: What materials are typically used in Needle Roller Bearing Components?
A: Needle roller bearing components are usually made from hardened steel, ensuring durability, corrosion resistance, and the ability to withstand high-stress environments.
Q: How do inner rings in needle roller bearings assist with axial displacement?
A: Wider inner rings permit greater axial displacement of the shaft relative to the housing, providing flexibility in certain industrial applications.
Q: Are Needle Roller Bearing Components suitable for sealed applications?
A: Yes, needle roller bearings can be used in sealed applications. Inner rings with additional lubrication holes are available on request for optimal performance in sealed environments.
Q: What industries typically use Needle Roller Bearing Components?
A: Needle roller bearing components are commonly used in automotive, aerospace, construction equipment, and industrial machinery due to their high load-carrying capacity and durability.