Types of Bearings

Table of Contents

Various Bearings

The most common type of bearing used
Can withstand high speeds due to the low torque needed to operate, they have good radial and axial strength, they are very quiet and require low maintenance.
The bearings have a deep groove that the ball bearings roll in
Along with the groove the ball bearings sit in a cage that spaces the balls apart
The bearings also have either rubber or steel seals that are pre-lubricated with grease

Deep Groove Ball Bearing

Has two tracks for the ball bearings to sit in. The outer ring has a single curved track, this allows the inner ring with two tracks to deflect around the bearing center
This type of bearing is good for machined parts that have minor misalignments

Self-Aligning Ball Bearing

- Can take both radial and axial loads, but axial loads can be taken in one direction
- The larger the contact angle is the more angular loads the bearing can withstand
- For highspeed applications, a smaller contact angle is desired
- the retainers are made from pressed steel, in high precision applications a polyamide resin cage is used

Single Row Angular Contact Ball Bearing

- Function like two single row angular contact side by side, but with one large outer ring
- Unlike single row angular contact bearings, double row angular contact bearings can take axial loads in both directions

Double Row Angular Contact Ball Bearing

These bearings have two washer-like inner and outer rings with a track containing the ball bearings
Thrust ball bearings can a large amount of axial loads

Single Direction Thrust Ball Bearing	Double Direction Thrust Ball Bearing

The cylindrical rollers have linear contact with the tracks.
They can withstand high radial loads and are great for high speeds
These bearings high radial rigidity make them good for high precision machining tools

Cylindrical Roller Bearings

This type of roller bearing has barrel-shaped rollers, the inner ring has two tracks that the rollers sit-in.
The one outer track has a one spherical track
Like a self-aligning ball bearing the curved shape of the outer ring gives the bearing a self-aligning property
These bearings can withstand large radial loads and some axial loads in both directions

Spherical Roller Bearing

Conical Taper Roller Bearings

These bearings are essentially just cylindrical roller bearings, but the rollers are very slender, often their lengths are 3 to 10 times their diameters.
The build of the rollers makes them able to take a high radial load.
The bearing has many versions that don’t require an inner ring to function.

Needle Roller Bearings

The bearings have barrel-shaped rollers that are arranged around the center at an angle.
These bearings are self-aligning and can take a very high axial.
When there is an axial load this type of bearing can take a bit of radial load.