Application design considerations for variable speed bearings
1. Reference to the shape and connection dimensions of variable speed drive bearings
2. The variable speed drive bearing can be placed horizontally or vertically or tilted. Can be rotated forward and backward. Positive and negative input and output power (ie deceleration or speed increase).
3, variable speed drive bearing regardless of the installation method, and its couplings have size matching requirements.
Recommended:
The inner ring hole d and the shaft are matched by H7/h6;
The pin hole do of the middle ring and the transmission are matched by H7/r6;
The outer ring D and the housing are matched by H8/h7;
The gear is matched with the hole on the output shaft by a clearance fit, and the gap is 0.2~0.5mm.
4. Axial positioning of variable speed transmission bearings: After any three turns of the ring are axially positioned, the other two axes do not need to be axially positioned.
5. Positioning in the direction of rotation; both the outer ring and the inner ring are flat key positions. The middle circle is using the drive positioning
6. The variable speed drive bearing can bear a small external force in the radial direction, as shown in Figure 5, but it is not suitable for a large working load.
7. Transmission ratio is the transmission ratio according to the first installation method. If other installation methods are used, the gear ratio should be calculated according to Table 1.
8. At rated speed (1500 rpm), select the variable speed drive bearing model according to the transmission ratio and required power (Kw) according to Table 2.
9. When based on the working torque, select the model according to Table 3.
10. The selection of the reducer model is consistent with the model of the variable speed drive bearing.
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