All You Want to Know About What's Roller Bearing Manufacturing Process [Quick]

Roller bearing manufacturing process is a significant part of bearing which decides the quality and price of bearing. And  the process is also a complex process. 

The roller bearing is rolling bearing with short cylindrical, tapered or spherical rollers as rolling elements. There are mainly structural types such as centripetal short cylindrical roller, double-row centripetal spherical roller, tapered roller, and thrust roller.

Roller bearings mainly include structural types such as radial short cylindrical rollers, double-row radial spherical rollers, tapered rollers, and thrust rollers.

Roller bearing classification

Cylindrical Roller Bearings

People mainly use this type of roller for cylindrical roller bearings. Roller assemblies can also apply directly to machinery. This type of roller has a standard model.

Needle bearing

This type of roller appears in needle roller bearings, universal joint needle roller bearings, and thrust needle roller bearings. People can also use needle roller components directly in machinery. According to the needs of the bearing structure, the shapes of the heads at both ends of the needle are tapered, flat, round, etc.

Tapered Roller Bearings

It has a round truncated cone, and its cone angle is usually 1 ° to 4 ° 20 ′, and there are also those less than 1 ° or greater than 4 ° 20 ′, mostly 2 °. The length of the roller is generally not more than twice the diameter of the large end of the roller. People use this type of roller for tapered roller bearings. And rollers with large tapered angles are basically for thrust tapered roller bearings.

Spherical roller bearings

The roller rolling surface is spherical. Bearings using this roller have self-aligning performance and can withstand large loads. Spherical rollers have asymmetric types and symmetrical shapes. Generally, the asymmetric large end surface is a spherical surface, and the symmetrical end surfaces are flat end. Symmetric spherical rollers have better performance. Therefore, spherical roller bearings and thrust spherical roller bearings use this type of roller.

Roller bearing machining process

Cylindrical roller bearing processing

Cylindrical roller blank forming process → deburring or endless belt → soft grinding raceway surface → soft grinding double end surface → heat treatment → front rough grinding rolling surface → rough grinding double end surface → rear rough grinding rolling surface → final grinding double end surface → final grinding rolling surface → super-finished rolling surface → cleaning, drying → final inspection appearance, size grouping → oiled packaging.

Taper roller bearing processing

Tapered roller blank forming process → deburring or endless belt → soft grinding raceway surface → soft grinding double end surface → heat treatment → rough grinding rolling surface → fine grinding rolling surface → grinding ball base surface → final grinding rolling surface → super fine Processing rolling surface → cleaning, drying → final inspection appearance, size grouping → oiled packaging. Make the above two types of rollers into convex-shaped busbar rolling surfaces. If the convexity is less than 0.005mm, people can generally perform in the super-finished rolling surface process. If the convexity is greater than 0.005mm. Roll it at the last final grinding. In the surface process, the convexity is ground and then perform the superfinishing.

Needle roller bearing processing

Needle rolling process blanks forming process→ deburring → heat treatment → coarse, fine, final grinding rolling surface → super-finished rolling surface or sawdust polishing. For flat and tapered needle rollers, if it is difficult to ensure the length and size tolerance of the blank forming. Add the double end grinding process during grinding and rolling. If it requires the convex-shaped busbar rolling surface, people can perform it in the super-finished rolling surface or the light channeling process.

Spherical roller bearing processing

• Asymmetric spherical roller blank forming process → deburring or endless belt → soft grinding raceway surface → soft grinding double end surface → heat treatment → grinding non-spherical end surface → grinding ball end surface → coarse, fine, final grinding rolling surface → polishing → Washing and drying → Final inspection appearance, size grouping → Oiled packaging.
• The process of symmetrical spherical rollers is: blank forming → deburring or endless belt → soft grinding raceway surface → soft grinding double end surface → heat treatment → rough grinding rolling surface → rough and final grinding double end surface → fine and final grinding rolling surface → polishing → Washing and drying → Final inspection appearance, size grouping → Oiled packaging. If the final grinding rolling surface process can meet the surface roughness requirements, it may not perform polishing.