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Angular ball bearings that can receive a certain amount of axial (axial direction) load.
[Features]
・ The straight line connecting the contact points between the ball and the inner and outer rings has an angle with respect to the radial direction.
・ Radial load and unidirectional axial load can be applied.
・ When a radial load acts, an axial component force is generated, so 2 are generally used facing each other.
[Applications]
・ Ideal for machine tools, feed screw mechanisms, ball screw support units, etc.
Mounting dimensional drawing
Mounting dimensional drawing
Angular ball bearings are non-separable bearings, and the straight line connecting the contact points between the ball and the inner and outer rings has a certain angle (contact angle) with respect to the radial direction. (Refer to Figure 1)The contact angle and contact angle symbol are shown in Table 1.
A radial load and a unidirectional axial load can be applied. Also, when a radial load acts, an axial component force is generated, so two are generally used facing each other. Table 2 shows the angular ball bearing,
Table 3 shows the combination angular ball bearings. For bearings with a contact angle of 15° and bearing accuracy of JIS 5 class or higher, refer to Precision Rolling Bearing (CAT. No. 2260/J).
Angular Ball Bearing
Contact Angle | 15° | 30° | 40° |
---|---|---|---|
Symbol of contact angle | C | A1) | B |
*1) Contact angle symbol A is omitted.
Classification | Features |
---|---|
Standard type | ・ The bearing series includes 79, 70, 72, 72B, 73 and 73B. ・ The contact angles are 30° and 40° (with B). ・ The standard retainer type depends on the bearing model number. (Please refer to Table 4) |
Combination Type | Features |
---|---|
Back combination (DB) | ・ It can receive radial load and axial load in both directions. ・ Since the distance l between the working points of the bearing is large, the load capacity of the moment load is large. ・ The allowable tilt angle is small. |
Front combination (DF) | ・ It can receive radial load and axial load in both directions. ・ The distance l between the working points of the bearing is small, and the load capacity of the moment load is small. ・ The permissible tilt angle is larger than the back combination. |
Parallel combination (DT) | ・ It can receive radial load and unidirectional axial load. ・ Since 2 pieces receive an axial load, a large axial load can be received |
Remarks 1. Since the bearings are manufactured as a set to adjust the internal clearance or preload amount of the bearings, bearings with the same product number must be used in combination.
Classification | Bearing series | Resin molding retainer | Pressed retainer | Machined retainer |
---|---|---|---|---|
Standard type | 79 70 72 73 72B 73B | 7904 to 7913 7000 to 7024 ― ― ― ― | ― ― 7200 to 7222 7300 to 7322 7200B~7222B 7300B~7322B | 7914 to 7960 7026 to 7040 7224 to 7240 7324 to 7340 7224B~7240B 7324B~7340B |
Note: The resin molding retainer cannot be used at high temperatures exceeding 120°C due to its material properties.
Part Number |
---|
7208L1 |
Part Number | Price | Name | Minimum Order Qty. | Volume Discount | Days to Ship | RoHS | Inner Dia. d (Ø) | Outer Dia. D (Ø) | Width B (mm) | Raceway Ring Shape | Bearing Type | Outer Ring Type | Inner/Outer Ring Material | Basic Dynamic Load Rating (N) | Specifications/Environment | Precision (JIS) | Load Direction | Rolling Element Material | Size Standards | Number of Raceway Ring Rows | Max. Allowable Rotational Speed (rpm) | Combination of Angular Contact Ball Bearings | Retainer Type | Sealing Structure | Types | Ordering Code | Contact angle symbol | Combination symbol | Preload Mark | Accuracy Symbol | Holder Symbol | Internal change symbol |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
฿ 1,150.24 | ANGULAR CONTACT BALL BEARINGS | 1 Piece(s) | 6 Day(s) | 10 | 40 | 80 | 18 | Angular Contact Ball (Single Row) | Open Type | Flat | Steel | 35500 | Standard | Grade 0 | Radial / Thrust | Steel | Metric System | Single Row | 9600 | - | Punching | - | 7*** series | - | A | - | - | - | L1 | - |
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