Technical Analysis of the INA thin wall bearing parts in the production process
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If intermittent noise through. If it announced a sharp hissing sound, squeaky sound, and other rules of sound, often revealed that the performance of the bearing is bad even turn.
A little grease under high pressure into the heavy-duty needle selection in addition to penetration, but also a high film strength and extreme pressure properties. According to the environmental conditions to select grease, calcium-based grease is not easy to dissolve in water, suitable for dry and less water environment. INA bearings commonly used calcium-based grease grease sodium calcium sodium based grease, lithium grease aluminum grease and molybdenum disulfide grease grease. The number of filling grease in the bearings, as appropriate to 1/2-1/3 of the overflowing of the bearing interior space. High-speed should be reduced to 1/3 of the excess grease will make the temperature rise increased.
The temperature of the bearings, general bearings outside the room temperature can be inferred, if the hole can directly measure the thin wall bearing outer ring temperature is more bit appropriate. Typically, the INA bearing with the bearing operating temperature slowly began to rise 1-2 hours to reach steady state. The normal temperature of the bearing due to the heat capacity of the machine, heat dissipation, speed and load. Lubrication, suitable mounting part, abrupt bearing temperature will rise, there will be unusually high temperatures, then have to stop running, take the necessary precautions.
The bearing is a precision mechanical bearing components, INA bearings user sincerely hope that the bearing on the host can not be damaged in the intended use period and to maintain its dynamic performance, but the objective fact is sometimes not satisfactory, unexpected bearing failure The accident will cause significant losses. Through a lot of bearing failure analysis studies have shown that short-lived or premature loss of precision bearings, some improper material defects or manufacturing, but to a large extent is not strictly in accordance with the bearings for installation, maintenance, or bearing the selection of inappropriate or actual non-normal load is larger than the causes of the thin wall bearing the rated load bearing damage.
Bearings appear cracking peeling INA bearings under the action of the cycle of load, the contact surface is very prone to fatigue failure, so in order to improve the service life of bearings, bearing steel must have a high contact fatigue strength.
Hardness is one of the important quality of bearing quality, has a direct impact on the contact fatigue strength, wear resistance, elastic limit. Thin-wall bearing steel hardness in the use of state general HRC61 ~ 65, in order to make the bearing contact fatigue strength and wear resistance.
Maintain the aircraft using nylon 46 manufacturing, thereby reducing the sliding friction between the ball and cage. In addition, to eliminate the rotation direction of the concave and convex shape, thereby reducing the mixing loss. In addition, by using the shape of the stress can slow down the assembly to ensure that the assembly performance. Single to keep the shelves loss of torque reduced by 30 to 40%, thin wall bearing the overall loss of torque was reduced by 50 to 65 percent. The company speculated that the Prius will be the 10 mode and 15 mode fuel efficiency from the previous 35.5km / L to 38.0km / L, the fuel efficiency of about 1 to 2% is obtained through the use of such bearings.
INA Bearing parts in the production process to go through a lot of cold, hot working processes, in order to meet high-volume, high efficiency, high-quality requirements, thin-walled bearing steel should have a good processing properties. For example, cold, hot formability, machinability, hardenability, etc..
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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INA bearings in the form of superior even turn will announce the down low whining sound percussion injuries also occur noise, this noise will be followed by a thin wall bearing speed bump and differences.If intermittent noise through. If it announced a sharp hissing sound, squeaky sound, and other rules of sound, often revealed that the performance of the bearing is bad even turn.
A little grease under high pressure into the heavy-duty needle selection in addition to penetration, but also a high film strength and extreme pressure properties. According to the environmental conditions to select grease, calcium-based grease is not easy to dissolve in water, suitable for dry and less water environment. INA bearings commonly used calcium-based grease grease sodium calcium sodium based grease, lithium grease aluminum grease and molybdenum disulfide grease grease. The number of filling grease in the bearings, as appropriate to 1/2-1/3 of the overflowing of the bearing interior space. High-speed should be reduced to 1/3 of the excess grease will make the temperature rise increased.
The temperature of the bearings, general bearings outside the room temperature can be inferred, if the hole can directly measure the thin wall bearing outer ring temperature is more bit appropriate. Typically, the INA bearing with the bearing operating temperature slowly began to rise 1-2 hours to reach steady state. The normal temperature of the bearing due to the heat capacity of the machine, heat dissipation, speed and load. Lubrication, suitable mounting part, abrupt bearing temperature will rise, there will be unusually high temperatures, then have to stop running, take the necessary precautions.
The bearing is a precision mechanical bearing components, INA bearings user sincerely hope that the bearing on the host can not be damaged in the intended use period and to maintain its dynamic performance, but the objective fact is sometimes not satisfactory, unexpected bearing failure The accident will cause significant losses. Through a lot of bearing failure analysis studies have shown that short-lived or premature loss of precision bearings, some improper material defects or manufacturing, but to a large extent is not strictly in accordance with the bearings for installation, maintenance, or bearing the selection of inappropriate or actual non-normal load is larger than the causes of the thin wall bearing the rated load bearing damage.
Bearings appear cracking peeling INA bearings under the action of the cycle of load, the contact surface is very prone to fatigue failure, so in order to improve the service life of bearings, bearing steel must have a high contact fatigue strength.
Hardness is one of the important quality of bearing quality, has a direct impact on the contact fatigue strength, wear resistance, elastic limit. Thin-wall bearing steel hardness in the use of state general HRC61 ~ 65, in order to make the bearing contact fatigue strength and wear resistance.
Maintain the aircraft using nylon 46 manufacturing, thereby reducing the sliding friction between the ball and cage. In addition, to eliminate the rotation direction of the concave and convex shape, thereby reducing the mixing loss. In addition, by using the shape of the stress can slow down the assembly to ensure that the assembly performance. Single to keep the shelves loss of torque reduced by 30 to 40%, thin wall bearing the overall loss of torque was reduced by 50 to 65 percent. The company speculated that the Prius will be the 10 mode and 15 mode fuel efficiency from the previous 35.5km / L to 38.0km / L, the fuel efficiency of about 1 to 2% is obtained through the use of such bearings.
INA Bearing parts in the production process to go through a lot of cold, hot working processes, in order to meet high-volume, high efficiency, high-quality requirements, thin-walled bearing steel should have a good processing properties. For example, cold, hot formability, machinability, hardenability, etc..
