Q:I use a deep groove ball bearing now, model is GB/T 276-1994, a large diameter 90, 50 paths, 20 thickness, requirements of bearing outer ring arranged on a bearing seat fit, the inner ring is mounted on a rotating shaft, and the fit, I don't know how to choose the tolerance than the more appropriate. The outer ring with which to choose tolerance, inner and choose? Please expert pointing

Bearings are generally bearings and holes transition or gap, the use of special use of interference, if the choice of interference, the bearing holes selected N7, P7, axis selected N6, P6, hole tolerance increased level. Upstairs K7 is a transition fit, but also can choose, in general, if the requirements are not high accuracy, you can use the bearings and holes transition coordination.

Q:Deep groove ball bearing 629Z code, how to resolve?

This is miniature bearingIron dust coverPrice is about eight or nine hair

Q:If you do not have this specification, there are similar, please say, and, incidentally, with the approximate specifications, thank you!

First of all, the inner diameter 10MM, the outer diameter 20MM, the width of 15MM GB model, there is no such deep groove ball bearings. Similar models are available in size 6800, size 10*19*56900, size 10*22*6, and 6000, size 10*26*8. By the way, your height is 15, then you may have double row deep groove ball bearings

Q:Use of deep groove ball bearings?

Deep groove ball bearingThe most representative rolling bearings, wide range of usesCan bear radial load and two-way axial loadIt is suitable for high speed rotating and low noise and low vibrationSealed bearing with steel plate dust cover or rubber sealing ring is filled with proper grease in advanceThe outer ring with a stop ring or flange bearings, that is easy to axial positioning, and easy to install inside the housingThe size of the maximum load type bearing is the same as that of the standard bearing, but there is a loading groove in the inner and outer rings, which increases the number of balls loaded and improves the rated loadMain retainer: steel plate holder (waveform, crown)... Single row; S shape... Double column)Copper alloy or phenolic resin cutting cage, synthetic resin forming cageMain application: Automobile: rear wheel, transmission, electrical partsElectric: General Motors, household appliancesOther: instrumentation, internal combustion engines, construction machinery, railway vehicles, handling machinery, agricultural machinery, various industrial machinery

Q:Deep groove ball bearings are how to assemble, I feel there is no way to assemble ah!

Now are the age of electrical automation, have automatic sets, riveting pressure, grease gland machine. Need to be detailed to find

Q:Deep groove ball bearings, iron cap seals and rubber cover seals are distinguished?

Deep groove ball bearings, rubber cover for sealing rings, deep groove ball bearings, iron cover for dust cover, sealing ring than dust cover dust, good sealing; iron cover only dustproof, waterproof rubber cover, waterproof and dustproof.Also, tell me about the classification of rolling bearings. 1. contact seals: felt rings, oil seals, lip seals, seals. 2.: non contact seal oil seal gap seal, labyrinth seal

Q:How to select the sealing form of deep groove ball bearings?

The dust cover is metal and is suitable for use with high ambient temperature.

Q:What are deep groove ball bearings suitable for automotive parts?

The characteristics of this bearing is suitable for a wide range of shortcomings can not be used in large power equipment, the car using the bearing place or more, such as generator, water pump, air compressor, air blower, steering, transmission are used in the bearing.

Q:Angular contact ball bearings or deep groove ball bearings for vertical motors. What is the minimum motor noise?

Angular contact ball bearings generally need to be used in pairs, and the installation methods have two types, "back to back" and "face to face". No matter which method is used, there should be a set of spacer between the bearing and the bearing. In the use of high requirement, this group of spacer thickness is different, the axial after installation of bearings in the no-load condition slightly as the degree of interference, this is the so-called "preload" is also called "pre load". With this method, the clearance of the bearing can be eliminated, the operation will be more stable and the noise will be less. This kind of structure can often be seen on the high precision grinding machine, but this kind of installation needs some experience and test means, and without experience, don't use it casually, so as not to make mistakes.Motor bearing is easily broken and big noise is generally the balancing problem, first proposed the correction of rotor dynamic balance, high speed and low noise bearings imported bearings (Note: low noise ball bearing retainer is non metal), at the time of purchase, precision bearing selection above D or D. General can solve your problem.So, if used properly, matching bearings will make the noise a little better.

Q:Ordinary deep groove ball bearings replace cryogenic -60C grease. Can it work in an environment of minus 45 degrees? Does expansion and contraction affect the bearing greatly?

I am not worried about grease, and I agree with the upstairs, you ordinary bearings at minus 45 degrees, the use of bearings should be very fragile, so it is easy to bad. Like at the south pole, steel does not need to be broken with great force