Four-point bearing: Decode the designation and find the correct bearing
Four-point bearings, known for their high load capacity and compact design, are used in many applications. The designation of these bearings, regardless of the manufacturer, follows a specific scheme that contains important information about their characteristics and construction. This guide will help you understand the designation of four-point bearings and select the appropriate bearing for your needs.
Structure of the designation:
- Example: QJ 208-MPA-N2
- QJ: Indicates the bearing series (four-point bearings) and the size.
- 208: Indicates the bore size, in this case 8 mm.
- MPA: Indicates the type of cage, here a solid cage made of brass.
- N2: Informs about the number of holding grooves in the outer ring, here two.
Elements of the designation:
- Bearing series: QJ stands for four-point bearing. Other manufacturers may use different designations.
- Bore code: Indicates the inner diameter of the bearing in mm.
- MPA: Solid brass cage (high strength, suitable for high speeds)
- TVP: Solid polyamide cage (light, good sliding properties
- No symbol or other designation: Window cage made of sheet steel or plastic (standard version)
- Other suffixes:
- C3: Greater axial play than standard
- N2: Two retaining grooves in the outer ring
- NR: Ring with groove and circlip
- XL: X-life bearings with optimized performance (Schaeffler)
- Explorer: Bearings with optimized performance (SKF)
Choosing the right bearing
The choice of the appropriate four-point bearing depends on various factors, including:
- Load: Static and dynamic loads acting on the bearing.
- Speed: Operating speed of the application.
- Environmental conditions: Temperature, lubrication, contamination.
- Installation conditions: Installation space, mounting options.
Tipps:
- High loads and speeds: Choose bearings with a solid brass cage (MPA).
- Lightweight design and good sliding properties: prefer bearings with a solid cage made of polyamide (PA).
- Simple mounting: Use bearings with retaining grooves in the outer ring (N2).
- Optimized performance: Consider X-life bearings (Schaeffler) or comparable versions from other manufacturers.
Unterstützung von Euro Bearing:
Euro Bearing, your expert in rolling bearings, assists you in selecting the optimal four-point bearing for your application, regardless of the manufacturer. We offer you:
- Comprehensive range: Large selection of four-point bearings from various manufacturers.
- Expert Advice: Our experts assist you in selecting the right warehouse based on the designation and your specific requirements.
- Fast delievery: Reliable and fast delivery of your warehouse.
Contact us to find the best quality bearings for your needs!