Stress Analysis of Tapered Roller Bearings

Tapered roller bearings are suitable for withstanding radial loads, one-way axial loads and combined radial and axial loads. The axial load capacity of tapered roller bearings depends on the contact angle α, that is, the outer ring raceway angle. The larger the contact angle α, the greater the axial load capacity. Generally, tapered roller bearings are not allowed to have angular errors, but the surfaces of the rollers and raceways are specially designed to allow angular errors of 2' to 4'. Single row tapered roller bearings Single row tapered roller bearings can withstand axial loads in one direction.

And can limit the axial displacement of the shaft in one direction relative to the bearing housing. Even under the action of pure radial load, an additional axial component is generated inside the tapered roller bearing. In this case, an equal amount of reverse force is required to balance it. Usually two single-row tapered roller bearings of the same structure are used in the two supports face to face or back to back. In order to ensure good running condition of the bearing, the tapered roller bearing must be applied with a certain amount like other ball bearings and roller bearings. Minimum load, especially for high speeds, high accelerations, or conditions with frequent changes in load direction.

Because of these conditions, the inertial force of the roller and the cage and the friction in the lubricant will adversely affect the rolling and rotation accuracy of the bearing, and there may be a slippage between the roller and the race that may be harmful to the bearing. motion. The minimum load Fmin required for a tapered roller bearing can be estimated by the following formula: Fmin = 0.02C, where C – the basic dynamic load rating, which may be required in the case of a low temperature start or a high viscosity of the lubricant. Minimum load. Normally, the weight of the bearing support itself plus the load on the bearing has exceeded the minimum required load. If the minimum load has not been reached, the bearings must be subjected to additional radial loads, such as axial preloading of the bearings to meet minimum load requirements.

For each product, we are most concerned with the core values ​​of such products and the various factors that influence this core value. For tapered roller bearings, its efficiency is greatly affected by its force. Therefore, it is very important for the force analysis of tapered roller bearings. This is not only the knowledge that users should master, but it may also become the heart of the business to promote such products.
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Deep groove ball bearing main parameter size table

No. 1, domestic new model: 6300; domestic old model: 300; inner diameter (mm): 10; outer diameter (mm): 35; width (mm): 11; Cr (kN): 7.65;

Cor(kN): 3.48; grease lubrication speed (r/min): 18000; oil lubrication speed (r/min): 24000; weight (kg): 0.053;

No. 2, new domestic model: 61801; domestic old model: 1000801; inner diameter (mm): 12; outer diameter (mm): 21; width (mm): 5; Cr (kN): 1.90;

Cor(kN): 1.00; grease lubrication speed (r/min): 24000; oil lubrication speed (r/min): 32000; weight (kg): 0.006;

No. 3, domestic new model: 61901; domestic old model: 1000901; inner diameter (mm): 12; outer diameter (mm): 24; width (mm): 6; Cr (kN): 2.90;

Cor(kN): 1.50; grease lubrication speed (r/min): 22000; oil lubrication speed (r/min): 28000; weight (kg): 0.011;

No. 4, domestic new model: 16001; domestic old model: 7000101; inner diameter (mm) 12:; outer diameter (mm): 28; width (mm): 7; Cr (kN): 5.10;

Cor(kN): 2.40; grease lubrication speed (r/min): 20000; oil lubrication speed (r/min): 26000; weight (kg): 0.024;

No. 5, domestic new model: 6001; domestic old model: 101; inner diameter (mm): 12; outer diameter (mm): 28; width (mm): 8; Cr (kN): 5.10;

Cor(kN): 2.38; grease lubrication speed (r/min): 20000; oil lubrication speed (r/min): 26000; weight (kg): 0.022;

For the construction machinery industry, how to maximize the working efficiency of the equipment requires a lot of attention, not only the purchase of equipment, the installation of equipment, the precautions for the use of equipment, the use of equipment, the maintenance of equipment, and the maintenance of equipment. and many more. For bearings, although they are only auxiliary components, their role in the work can not be underestimated.
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