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Detailed Discussion on "Deep Groove Ball Bearings"
Source: China Bearing Network Time: 2014-08-11
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The deep groove ball bearing layout is simple; compared with other types, it is easy to reach higher production precision; therefore, it is easy to produce in large quantities in series; the production cost is also low; the application is extremely applicable. In addition to the fundamental type of deep groove ball bearings; Variant layout; eg deep groove ball bearing with dust cover, deep groove ball bearing with rubber sealing ring, deep groove ball bearing with snap groove, deep groove ball bearing with large load capacity with ball gap, double Column deep groove ball bearings.
1. Deep groove ball bearing with dust cover Specification: D-type deep groove ball bearing Z type and 2Z type; one side with dust cover is Z type; double side with dust cover is 2Z type.
The bearing with dust cover is used under the condition that the sole is smooth and difficult, the smooth oil path is unsettled, and the viewing condition is inconvenient; the bearing has been filled with the quantitative and fixed trademark rust-proof and smooth dual-purpose lithium grease. The amount of grease written by the sleeve bearing is usually 1/4 to 1/3 of the effective space in the bearing; the amount of grease can also be increased or decreased according to user requirements. The smooth grease written can usually ensure the bearing is at -40 to +120 °C. Work under working conditions. If the user has higher requirements for the bearing, it can also be filled with other functions and trademarks of smooth grease according to the situation. Bearings with dust cover can be used for long-term effective operation through grease injection; Time to add smooth grease.
Bearings with dust cover are mostly used for small and medium-sized generators, two rotors of electric motors, automobiles, tractors, air conditioners, electric fans, etc.; and occasions where there is a unique need for noise oscillation of bearings.
2. Deep groove ball bearing with seal ring Specification Deep groove ball bearing with seal ring has contact type sealed bearing RS type (one side seal), 2RS type (double side seal) and non-touch type sealed bearing RZ type (one side seal ), 2RZ type (double-sided sealing).
The function of the bearing with the sealing ring, the grease and the use are the same as the bearing with the dust cover. The difference is that there is a large gap between the dust cover and the inner ring with the dust cover bearing; the non-touch seal The gap between the sealing lip and the inner ring of the bearing is very good. 哟ナ 哟ナ 芊馊χ岢 èŠŠç¯ èŠŠç¯ èŠŠç¯ èŠŠç¯ è°ŒÏ‡æ¶¿ 谌χ涿 谌χ涿 谌χ涿 谌χ涿 谌χ涿 谌χ涿 谌χ涿 谌χ涿 谌χ涿 谌χ涿 谌χ涿 谌χ涿 谌χ涿 谌χ涿 黾
Low-noise demand; 60- and 62-series smaller-scale deep groove ball bearings. Regardless of open bearings, with dust caps or with seals, they can be low noise and low when ordered. The demand for oscillation. In China's JB (Machinery Industry Specification), the oscillations of the three frequency bands of V1, V2 and V3 are calibrated. The SKF company can also supply ultra-low noise bearings. The bearing is marked with the post code QE5.
3. Deep groove ball bearing with stop groove and retaining ring. Specification type deep groove ball bearing with retaining groove; rear code is N; bearing rear code with stop groove and stop ring is NR; in addition there are layout variants such as ZN; ZNR.
Bearings with snap grooves and with snap rings have the function of accepting radial loads for deep groove ball bearings; the stop ring can restrain the axial displacement of the bearings; simplify the axial layout of the bearing housing and reduce the axial dimension.
Bearings with snap grooves and snap rings are often used in automotive, tractor and other areas where the axial load is not large.
4. Deep groove ball bearings with ball gaps are standard. Deep groove ball bearings with ball gaps have 200 and 300 diameter series. These bearings have notches on the inner and outer rings on one side of the bearing; This port is loaded with more balls; the radial bearing of the bearing can be larger than the standard deep groove ball bearing. However, the axial bearing can be more ridiculous. If there is a large axial load; it is usually required Cooperate with a set of general deep groove ball bearings.
Deep groove ball bearings with ball gaps have a variety of layout variants. The layout variant with dust cover has the same strength as the basic dust cover bearing; the bearing can be used for a long time after writing the lithium base grease once. The layout of the moving groove and the stop ring is modified; it is often used in the automobile gearbox; the axial displacement of the bearing can be restrained in a limited space; and the axial load can be reduced; the bearing with a smaller scale can be accepted. Large radial load.
5. Double row deep groove ball bearings of double row deep groove ball bearings are type 4200A, 4300A. Type A bearings do not have ball gaps. Two reinforced nylon cages are pierced from both sides of the bearing. Double row deep groove ball bearings are excluded. It has a radial load of 1.62 times higher than that of a single row deep groove ball bearing; it can also accept axial load.
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