Angular Contact Ball Bearings
Angular contact ball bearings in P4 grade, for positions where radial and axial loads arrive together and the seating has to stay precise at speed.
Angular contact ball bearings · P4 precision grade · combined loads
Combined loads: radial and axial together
A deep groove bearing centres its contact on the radial line; an angular contact bearing offsets the raceway contact so one bearing carries radial and axial load at the same time. That is the position this family is built for: spindles, pumps and geared shafts where thrust arrives with the radial load and a separate thrust bearing would complicate the seating. The company positions the family on combined load capacity and on high-speed performance for demanding rotating applications, which is where angular contact is normally specified.
| Selection point | What it settles |
|---|---|
| Load direction | Radial and axial load carried together in one bearing |
| Arrangement | Single bearings, or pairs arranged against each other |
| Precision grade | P4, the grade carried in the family name |
| Typical positions | Spindles, pumps and shafts with working thrust |
The P4 grade in the family name
Precision grades in this range run P0, P6, P5 and P4 across the steel families, and the angular contact family is the one carried at P4 — the tightest grade in the frame. That makes the family the natural first check for machine-tool and spindle-adjacent positions in this range, and it is also why the inquiry should state the grade rather than leave it to be assumed: a P4 item and a standard-grade item are different deliveries against the same nominal size.
Where angular contact sits in the range
Buyers usually arrive here from one of two directions: from the steel ball bearing family, when a deep groove position starts carrying thrust it was not seated for, or from the custom bearing line, when the size is standard but the grade is not. If the load is purely radial, the deep groove family is the simpler answer; if it is purely axial, the thrust ball bearing page is. Angular contact is the answer when both arrive together and the seating must stay one bearing wide.
Send an inquiry
State the size, the P4 grade and the load case for each angular contact position on your list, with quantities and the destination market, and send it through the inquiry form.