Maintenance, repair, lubrication of industrial bearings
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Bearing cleaning: remove bearing overhaul, the first recorded appearance of the bearings, confirm the remaining amount of lubricant, after sampling inspection by the lubricant, cleaning bearings. As a cleaning agent, general use gasoline, kerosene.
Removed bearing cleaning, cleaning rough and fine cleaning, placed in a container, metal mesh on the bottom first, make the bearing does not directly contact the container dirt. Rough cleaning, if you rotate the bearings with dirt, can damage the bearings of rolling surface, should pay attention to. In the crude oil washing, use the brush to remove grease, adhesive material, generally after a clean, to wash.
Sperm washing, cleaning of oil bearing is in while rotating, while careful cleaning. In addition, cleaning oil should be kept clean.
Bearing maintenance and judgment: dismantled in order to determine the bearing can be used to check whether, after bearing wash. Check the raceway surface, rolling surface, with the surface state, maintain and increase shelf wear, bearing clearance and the irrelevant dimension accuracy decreased injury, abnormal. Non separation of small ball bearings, inner ring with one hand supporting level, to confirm whether the smooth rotating ring.
Tapered roller bearings and other release bearing, can check the raceway surface, rolling body of the outer ring.
Because large bearing cannot rotate with the hand, check the rolling body raceway, cage, retaining boundary surface appearance, bearing shall carefully check the higher importance.
Bearing lubrication purposes:
The rolling bearing lubrication to reduce friction and wear of the bearing internal, prevent the following burn, the lubricating effect.
(1) to reduce friction and wear.
In the contact part of bearing rings, rolling body and a holding device, prevent metal to metal contact, reducing friction, wear.
(2) extending fatigue life.
The rolling bearing fatigue life, in rotation, the rolling contact surface of good lubrication, extended. On the contrary, the oil viscosity is low, the lubrication oil film thickness is not good, will shorten the.
(3) the discharge of the frictional heat, cooling.
Circulating oil methods can be oil discharge the heat generated by friction, or by an external heat, cooling. To prevent overheating of bearing lubricating oil, prevent the aging.
(4) the other
But also to prevent the foreign body bearing, or the effect of preventing rust, corrosion. Lubrication method:
Method of lubricating bearings, divided into grease lubrication and oil lubrication. In order to make the bearing play function very well, first of all, to choose suitable conditions, using the method of lubrication. If only consider lubrication, oil lubrication of lubrication advantage. However, lubricating grease can simplify the structure around the bearing strength, compare the advantages and disadvantages of grease lubrication and oil lubrication.
Bearing installation:
The bearing is installed correctly, affect the accuracy, performance, service life. Therefore, the design and assembly departments for bearing installation to fully study. Want to be installed according to the operating standard. Operation standard projects usually are as follows:
(1) cleaning bearings and bearing connected components;
(2) check the related parts size and fine processing;
(3) installation;
(4) bearing inspection after installation;
(5) supply of lubricant.
Hope that in the pre installation, just open the bearing package. General grease lubrication, no cleaning, directly filling grease. Lubricating oil, general need not cleaning, however, instruments or high speed bearings, to use clean oil wash, remove antirust coating in the bearing. Remove the bearing, anti rust agent is easy to rust, so cannot be placed aside. Furthermore, has grease sealed bearings, not washing directly use.
The installation method of bearing, the bearing structure, coordination, conditions vary, in general, due to rotate, so the inner ring interference fit is required. Bearings with a cylindrical bore, multi-purpose press press, or use the hot charging method. Tapered bore, directly installed in the taper shaft, or sleeve installation.
Mounted to the housing, general clearance, there is interference in the outer ring, usually with presses into, or have shrink fit method of installing cooling. Using dry ice as a cooling agent, shrink fit occasion, the moisture in the air condenses on the bearing surface. So, need appropriate antirust measures.
234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
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For long time to maintain the original performance of bearings in good condition as far as possible, maintenance, repair, in order to prevent accidents, ensuring the reliability of operation, increase production, economy. To maintain the best operating conditions of the corresponding mechanical operating standards, regular. The content includes monitoring running state, supplement or replacement of the lubricant, periodic disassembly inspection. As a matter of maintenance in operation, a rotary bearings sound, vibration, temperature, lubricant condition and so on.Bearing cleaning: remove bearing overhaul, the first recorded appearance of the bearings, confirm the remaining amount of lubricant, after sampling inspection by the lubricant, cleaning bearings. As a cleaning agent, general use gasoline, kerosene.
Removed bearing cleaning, cleaning rough and fine cleaning, placed in a container, metal mesh on the bottom first, make the bearing does not directly contact the container dirt. Rough cleaning, if you rotate the bearings with dirt, can damage the bearings of rolling surface, should pay attention to. In the crude oil washing, use the brush to remove grease, adhesive material, generally after a clean, to wash.
Sperm washing, cleaning of oil bearing is in while rotating, while careful cleaning. In addition, cleaning oil should be kept clean.
Bearing maintenance and judgment: dismantled in order to determine the bearing can be used to check whether, after bearing wash. Check the raceway surface, rolling surface, with the surface state, maintain and increase shelf wear, bearing clearance and the irrelevant dimension accuracy decreased injury, abnormal. Non separation of small ball bearings, inner ring with one hand supporting level, to confirm whether the smooth rotating ring.
Tapered roller bearings and other release bearing, can check the raceway surface, rolling body of the outer ring.
Because large bearing cannot rotate with the hand, check the rolling body raceway, cage, retaining boundary surface appearance, bearing shall carefully check the higher importance.
Bearing lubrication purposes:
The rolling bearing lubrication to reduce friction and wear of the bearing internal, prevent the following burn, the lubricating effect.
(1) to reduce friction and wear.
In the contact part of bearing rings, rolling body and a holding device, prevent metal to metal contact, reducing friction, wear.
(2) extending fatigue life.
The rolling bearing fatigue life, in rotation, the rolling contact surface of good lubrication, extended. On the contrary, the oil viscosity is low, the lubrication oil film thickness is not good, will shorten the.
(3) the discharge of the frictional heat, cooling.
Circulating oil methods can be oil discharge the heat generated by friction, or by an external heat, cooling. To prevent overheating of bearing lubricating oil, prevent the aging.
(4) the other
But also to prevent the foreign body bearing, or the effect of preventing rust, corrosion. Lubrication method:
Method of lubricating bearings, divided into grease lubrication and oil lubrication. In order to make the bearing play function very well, first of all, to choose suitable conditions, using the method of lubrication. If only consider lubrication, oil lubrication of lubrication advantage. However, lubricating grease can simplify the structure around the bearing strength, compare the advantages and disadvantages of grease lubrication and oil lubrication.
Bearing installation:
The bearing is installed correctly, affect the accuracy, performance, service life. Therefore, the design and assembly departments for bearing installation to fully study. Want to be installed according to the operating standard. Operation standard projects usually are as follows:
(1) cleaning bearings and bearing connected components;
(2) check the related parts size and fine processing;
(3) installation;
(4) bearing inspection after installation;
(5) supply of lubricant.
Hope that in the pre installation, just open the bearing package. General grease lubrication, no cleaning, directly filling grease. Lubricating oil, general need not cleaning, however, instruments or high speed bearings, to use clean oil wash, remove antirust coating in the bearing. Remove the bearing, anti rust agent is easy to rust, so cannot be placed aside. Furthermore, has grease sealed bearings, not washing directly use.
The installation method of bearing, the bearing structure, coordination, conditions vary, in general, due to rotate, so the inner ring interference fit is required. Bearings with a cylindrical bore, multi-purpose press press, or use the hot charging method. Tapered bore, directly installed in the taper shaft, or sleeve installation.
Mounted to the housing, general clearance, there is interference in the outer ring, usually with presses into, or have shrink fit method of installing cooling. Using dry ice as a cooling agent, shrink fit occasion, the moisture in the air condenses on the bearing surface. So, need appropriate antirust measures.
