Single-row Angular Contact Ball Bearings
- Precision options come in the 7900, 7000, and 7200 series.
- Offered with a 15° contact angle, _x001c_C_x001d_ and a 25° contact angle, _x001c_AC_x001d_.
- Can be offered with ceramic balls.
Overview
Main text
Single-row Angular Contact Ball Bearings
|
Design
Main text
Single-row Angular Contact Ball Bearings
- These bearings are designed with three contact angle classifications as shown in Table 1.
- Normally, contact angle A design and B design are fitted with a cage as shown in Table 2.
- High precision (JIS/ISO class 5 or higher) may be fitted with a machined cage of bronze or phenolic resin or a polyamide cage.
Contact angle C design are generally applied high precision, JIS (ISO) class 5 or higher, and are fitted with a machined phenolic resin cage or a polyamide cage.
Contact Angle and Characterisics of Single-row Angular Contact Ball Bearings
Contact Angle Symbol |
Example Bearing No. |
Contact Angle (α) |
Speed | Load capability (*2) | Cross Section | |
---|---|---|---|---|---|---|
Radial Load Direction(X) | Axial Load Direction (Y) |
|||||
A | 7205(*1) | 30° | Normal | Normal | Normal | |
B | 7205B | 40° | Low | Low | High | |
C | 7205C | 15° | High | High | Low |
(Note)
*1: Contact angle symbol "A" is omitted.
*2: Axial load be accommodated in one direction only.
Standard Cage Materials (For JIS / ISO class 0 or 6)
Applicable Bore Diameter Number | ||
---|---|---|
Pressed Steel | Machined Brass | |
72, 72B | 00 - 22 | 24 - 40 |
73, 73B | 00 - 19 | 20 - 40 |