Rolling Element Bearings
Ball, roller, and needle bearings
Details
Rolling Element Bearings
Rolling bearings consist of an outer ring, rolling elements, and an inner ring. Because the components do not slide but roll over the rolling elements (balls, needles, rollers), they generate only a fraction of the frictional resistance of plain bearings. Grease and seals improve service life, corrosion resistance, and smooth-running. They are typically used in applications involving high-speed rotational movements that require a low starting/running torque. In addition to standard rolling element bearings, RWG offers customer-specific solutions for demanding requirements regarding operating temperature, speed, frictional torque, and loads.
Custom Solutions
For example:
- Integrated design: flange, spigot, splined shaft
- Geometry: single-row/multi-row, raceway geometry, cage
- Lubrication: grease-filled, lubrication bore, lubrication fitting
- Material: corrosion-resistant steel, nitrogen-alloyed steel, ceramic balls
- Surface protection: passivation, Zn-Ni, cadmium
- Dimensions:
- Inner diameter up to approx. 200 mm
- Outer diameter up to approx. 280 mm
- Width up to approx. 70 mm
Technical Features
- Through-hardened for high load capacity
- Super-finished raceway for precision and smooth-running
- Temperature range: -200°C to +500°C
- For further technical details, see Technology
Custom Design
Integrated Design: Spherical roller bearing with a complex flange in the Airbus A350 flap kinematics system
- Complex flange geometry as part of the outer ring
- PTFE seal
- Stainless steel 1.3544 for use in harsh environmental conditions
- Individual component test reports for safety-critical parts
- Grease holes for relubrication during service
- Non-destructive magnetic particle testing according to ASTM E 1444
- Surface protection by passivation and Zn-Ni plating
Types of Rolling Element Bearings at RWG
| Ball | Roller / Needle |
|---|---|
| Self-aligning ball bearings | Cylindrical roller bearings |
| Deep groove ball bearings | Spherical roller bearings |
| Angular contact ball bearings | Self-aligning roller bearings |
| Four-point contact bearings | Needle bearings |
| Cam follower / Track rollers | Cam follower / Track rollers |
Standardized rolling element bearings
RWG offers rolling bearings in accordance with numerous international and OEM standards:
- International: EN, SAE AS
- Airbus: ABS, NSA, ASNA
- Many more
Do you have any questions?
Rolling Element Bearings
Ball, roller, and needle bearings
Details
Rolling Element Bearings
Rolling bearings consist of an outer ring, rolling elements, and an inner ring. Because the components do not slide but roll over the rolling elements (balls, needles, rollers), they generate only a fraction of the frictional resistance of plain bearings. Grease and seals improve service life, corrosion resistance, and smooth-running. They are typically used in applications involving high-speed rotational movements that require a low starting/running torque. In addition to standard rolling element bearings, RWG offers customer-specific solutions for demanding requirements regarding operating temperature, speed, frictional torque, and loads.
Custom Solutions
For example:
- Integrated design: flange, spigot, splined shaft
- Geometry: single-row/multi-row, raceway geometry, cage
- Lubrication: grease-filled, lubrication bore, lubrication fitting
- Material: corrosion-resistant steel, nitrogen-alloyed steel, ceramic balls
- Surface protection: passivation, Zn-Ni, cadmium
- Dimensions:
- Inner diameter up to approx. 200 mm
- Outer diameter up to approx. 280 mm
- Width up to approx. 70 mm
Technical Features
- Through-hardened for high load capacity
- Super-finished raceway for precision and smooth-running
- Temperature range: -200°C to +500°C
- For further technical details, see Technology
Custom Design
Integrated Design: Spherical roller bearing with a complex flange in the Airbus A350 flap kinematics system
- Complex flange geometry as part of the outer ring
- PTFE seal
- Stainless steel 1.3544 for use in harsh environmental conditions
- Individual component test reports for safety-critical parts
- Grease holes for relubrication during service
- Non-destructive magnetic particle testing according to ASTM E 1444
- Surface protection by passivation and Zn-Ni plating
Types of Rolling Element Bearings at RWG
| Ball | Roller / Needle |
|---|---|
| Self-aligning ball bearings | Cylindrical roller bearings |
| Deep groove ball bearings | Spherical roller bearings |
| Angular contact ball bearings | Self-aligning roller bearings |
| Four-point contact bearings | Needle bearings |
| Cam follower / Track rollers | Cam follower / Track rollers |
Standardized rolling element bearings
RWG offers rolling bearings in accordance with numerous international and OEM standards:
- International: EN, SAE AS
- Airbus: ABS, NSA, ASNA
- Many more