Angular ball bearing
Angular ball bearing
Angular contact ball bearings have raceways in the inner and outer ring that are offset from one another in the direction of the bearing axis. They are designed for bearings that have to absorb combined loads such as radial and axial loads acting simultaneously. The axial load carrying capacity of angular contact ball bearings increases with the size of the contact angle.
Technical information
The usual contact angle for single-row angular contact ball bearings is 40° (design -B). This means that (in contrast to spindle bearings with significantly smaller contact angles) very high axial loads can be transmitted with high radial loads at the same time.
Universal
designs Single-row angular contact ball bearings of the universal design are intended for installation in pairs in an X, O or tandem arrangement. Universal design means that the raceways and side faces of the rings are ground in such a way that any bearing of the same size and design can be installed directly in the desired arrangement. A distinction is made between the following universal designs depending on the desired axial play:
- UA with axial
- play BG backlash-free (without preload), 40° contact angle (typical Japanese design)
- UO backlash-free (without preload)
- UL light preload
- UM medium preload
- US heavy preload
External environmental influences can have an extremely negative effect on the running properties and thus the service life if the seal is inadequate. Bearings must therefore be protected by seals.
Bearings with seals on both sides are always greased for life.
At the same time, seals also prevent the lubricant from escaping.
2RS | RS
Grinding seal with good sealing effect against coarse and fine contamination. Very good sealing effect, also against grease leakage and therefore long service life. The standard seal is made of NBR nitrile rubber and has a temperature resistance of -40 °C to +100 °C.
ZZ | Z
Gap seal with moderate sealing effect against coarse contamination. Good sealing effect also against grease leakage and thus long service life. The standard seal consists of sheet steel and has a recommended temperature resistance of -40 °C to +160 °C.
Single-row angular contact ball bearings are axially preloaded and are therefore free of play.
Double row angular contact ball bearings are delivered in different internal clearance classes. The clearance in the bearing is identified by the identifier C (C0, C2, C3 ...). It should be noted that the internal clearance is measured in the axial direction.
- C0/CN: standard clearance class. Indicator is usually omitted.
- C2: Reduced internal clearance, for a rigid bearing with as little play as possible
- C3: Higher internal clearance than C0/CN
- C4: Higher internal clearance than C3
- C5: Higher internal clearance than C4 - especially when used with high-temperature bearings.
- Special tolerances according to customer specification: CX.Y (upper dimension X in µm, lower dimension Y in µm).
Connection dimensions and concentricity have a decisive influence on the service life and function of the rolling bearing. The selection of the shaft, housing and bearing fit must therefore always be checked in advance.
The following tolerance classes are available:
- Standard tolerances available from stock: P0/PN
- Special tolerances: P6, P5
Cage types can vary depending on size and type of application. We carry various cage designs made of sheet steel, plastic and brass.
Sheet steel versions are available as
- Snake cage for increased number of balls and thus increased load rating
- Snap cage suitable as standard version for increased operating temperatures
Polyamide PA66 versions
- snap cage
