Thrust Ball Bearings
Thrust Ball Bearings Supplier
Overview
Thrust Ball Bearingsare designed to take axial (thrust) loads at high speeds, but they cannot handle any radial loads. These bearings feature bearing washers with raceway grooves in which the balls move.Thrust ball bearings are classified into “flat seat” and “aligning seat” types, based on the shape of the housing washer (outer ring seat), and as single-direction or double-direction. Spherical and aligning seat washers help to provide tolerance for mounting errors.
A Thrust Bearing is a particular type of rotary bearing. Like other rotary bearings they permit rotation between parts, but they are designed to support a high axial load while doing this (parallel to the shaft). Different kinds of Thrust Bearings are used to support different amounts of axial load. Thrust Bearings are used in applications that use little axial load, where a ring supports ball bearings. Thrust Bearings are used in applications that require high axial load, and can also support shafts that are out of alignment. Thrust Bearings are used in higher speed applications that require oil lubrication, such as in the automotive and aerospace industries. Generally, Thrust Bearings are composed of two washers (raceways) in which those for ball bearings may be grooved, and the rolling elements.
Features of Thrust Ball Bearings
- Specialized design
A cage contains the balls while the grooved aligning seat washer guides them. - Dedicated components
Washers attached to the shaft are called “shaft washers” and those attached to the housing are called “housing washers” (fixed rings). - Support axial loads
Single-direction thrust ball bearings can take axial loads in one direction.
Thrust bearings come in several varieties including:
- Ball Thrust Bearings – Composed of ball bearings supported in a ring, can be used in lower thrust applications where there is little radial load. Washers may be flat or grooved. Miniature thrust bearings starting with bores as small as 2 mm but as large as 340 mm.
Roller Thrust Bearings – Composed of cylindrical rolling elements, Roller thrust bearings have higher load carrying capacities then equally sized ball thrust bearings. Washers are typically flat (not grooved). Small roller thrust bearings start at 45 mm bores.
Technical Chart
| Bearing No. | d | D | T | B | C | R | Mass |
| 51100 | 10 | 24 | 0 | 9 | – | – | 0.02 |
| 51101 | 12 | 26 | 0 | 9 | – | – | 0.02 |
| 51102 | 15 | 28 | 0 | 9 | – | – | 0.02 |
| 51103 | 17 | 30 | 0 | 9 | – | – | 0.02 |
| 51104 | 20 | 35 | 0 | 10 | – | – | 0.03 |
| 51105 | 25 | 42 | 0 | 11 | – | – | 0.06 |
| 51106 | 30 | 47 | 0 | 11 | – | – | 0.06 |
| 51107 | 35 | 52 | 0 | 12 | – | – | 0.08 |
| 51108 | 40 | 60 | 0 | 13 | – | – | 0.12 |
| 51109 | 45 | 65 | 0 | 14 | – | – | 0.15 |