Technical requirements for CNC machining bearings

No matter what kind of work, there are certain requirements for the technology. If the technology is not good, the effect produced in the later stage is certainly not good. Therefore, if you want to ensure the effect of the product, the technology must be excellent. In CNC machining, the technology is also divided into many parts. Today, we will learn about the technical requirements of bearings?

1. It is allowed to heat the rolling bearing with oil, and the oil temperature shall not exceed 100 ℃.
2. The semicircular hole of bearing outer ring, open bearing seat and bearing cover shall not be stuck.
3. The outer ring of the bearing shall be in good contact with the semicircular hole of the open bearing seat and the bearing cover. During the color coating inspection, the outer ring and the bearing cover shall be evenly contacted within the range of 120 ° symmetrical to the center line and 90 ° to the center line with the bearing cover. When the feeler gauge is used for inspection within the above range, the 0.03mm feeler gauge shall not be inserted into 1 / 3 of the outer ring width.
4. After assembly, the bearing outer ring should contact with the end face of the bearing cover at the locating end evenly.
5. After the rolling bearing is installed, it should rotate flexibly and stably by hand.
6. The joint surface of the upper and lower bearing shells should be close to each other and cannot be checked with a 0.05mm feeler gauge.
7. When fixing the bearing bush with locating pin, the reaming and pin distribution should be carried out under the condition that the bearing mouth surface and end face are in line with the opening and closing surface and end face package of the relevant bearing hole. The pin shall not be loose after being driven in.
8. The bearing body and bearing seat of spherical bearing shall be in uniform contact, and the contact shall not be less than 70% by color coating method.
9. When the surface of the alloy bearing liner is yellow, it is not allowed to use, and there is no nuclear separation within the specified contact angle. The area outside the contact angle shall not be greater than 10% of the total area of the non-contact area.

Shaft parts is a common type of parts, its structure is a rotating body, the length is generally greater than the diameter, it is widely used in various mechanical equipment, used to support transmission parts, transmit torque and bear load