Motor rolling bearing assembly requirements

Rolling bearing is running between the shaft and the shaft seat sliding friction into rolling friction, thereby reducing friction loss of a precision mechanical components.Rolling bearings generally consists of inner ring and outer ring, rolling body and keep the frame of four parts, the function of inner ring is match with shaft and shaft rotation;Outer ring is used to match the bearing seat, a support role;Rolling body is with the aid of maintains a uniform distribution of the rolling element between inner ring and outer ring, its shape size and quantity directly affects the using performance and life of rolling bearing;
Maintains a uniform distribution can make the roller, guide roller rotation lubrication.
Cleaning of rolling bearings
1, Dig out the anti-rust oil and grease in the bearing, and then on the hot melted the residual oil in the engine oil.
2, Use kerosene wash and then rinse with gasoline, and to wipe them with a clean cloth.
3, Also can use other detergent (no abrasion) cleaning, and bearing a cloth to wipe clean.
4, With dirty oil or dirty cloth, cotton yarn or dry cleaning.
Inspection of rolling bearings
1, Whether bearing body inside and outside clean.
2, Bearing inner and outer race, rolling element and cage (cage) if there is a crack, burr, rust, bruised, appearance size, weight, appearance quality, such as bad phenomenon.
3, Bearing inner race can with shoulder closely rely on.
4, Bearing clearance eligibility requirements.
5, The rotation bearing light, do you have any difficult to rotate or suddenly stuck phenomenon.
6, Bearing accessories are complete.
7, Check the defects found in the process, must have a method to eliminate;If you can't eliminate, you must replace new bearing.
Rolling bearing assembly requirements.
1, First choose qualified bearing quality, check and cooperate with trunnion or bearing body, and determine what kind of cooperation way, the main consideration of bearing working conditions (load, rotational speed, temperature, etc.).
General provisions: rotating seat USES the interference fit, not rotating seat with little interference fit;The higher the speed, the rotating seat with shaft with interference should be bigger.
Smaller interference, light work load application load weight can use larger interference.
The higher the working temperature, the inner race and the shaft with interference should be, the greater the bearing hole and the outside with the seat should be smaller.
Often remove the bearing, the use of smaller interference fit.
2, It says on the bearing model of end face should be in a visible place, to facilitate replacement can identify the bearing type.
3, Trunnion or shell hole shoulder radius, arc radius should be less than the bearing to ensure the assembly after the bearing and the shaft shoulder by shoulder and shell hole tightly.
4, Bearing fixing device must be in good condition and reliable, and tightening process is moderate, reliable locking.
5, Bearing assembly process, should strictly keep clean, prevent debris into the bearings.
6, Assembling, bearing should be flexible rotation, no noise, the general working temperature is less than 50 ℃.
Supplier
BMB Bearings ia a precision bearing enterprise specializing in the production of double row angular contact ball bearings, double row deep groove ball bearings, and single row angular contact ball bearings. The company is a end bearings manufacturer enterprise producing double row angular contact ball bearings in China. Its models cover 3200 series, 3300 series, 3000 series, 3800 series, 3900 series, etc. The product accuracy grades are: P0, P6, P5, P4, and the products are widely applicable.
The company also maintains an extensive inventory of superior roller bearings, ball bearings, Deep Groove Ball Bearings, Selfaligning ball bearing, Angular Contact Ball Bearings, Thrust Ball Bearings and much more.