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Rolling Replacement general rule
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| Time：2016.09.06 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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Replacement of rolling bearings is generally lower than the diameter of the original start bearing diameter series where the series selected replace bearings, and select alternative bearing outer diameter shall wife bearing the same inner diameter of the bearing is greater than the first wife. This is mainly on account of: (1) easy to process, saving materials; (2) Replacement, bearing rated load is high, life is not affected.
Deep groove ball bearings Replacement law
6400-6300,6200 alternative.
6300-6200,6100 alternative.
6200-6000 Replacement.
60000-2Z-6000-Z Replacement.
For example, 60000N genera outer ring of deep groove ball bearings, bearing Select Replacement of 6408N (formerly code 50408) can be selected bearing 6310 (formerly code 50310) ID casement Replacement can also select 6408 (formerly codenamed 408) at one end of the outer diameter grooving Replacement. 6310 (formerly codenamed 310) bearing Select 6212 (formerly codenamed 212), 6210 (formerly codenamed 210) bearing diameter collar padded Replacement.
Tapered Roller Bearing Replacement law
32300-32200,30300 Replacement
32200-30200 Replacement
30300-32200,30200 Replacement
30200-32000 Replacement
For example, 32308 (formerly codenamed 7608) bearing, optional 32210 (formerly codenamed 7510) ID casement padded Replacement; may also choose to 32208 (formerly codenamed 7508) outside diameter casement padded Replacement. Also optional 30308 (formerly codenamed 7308) padded Replacement.
Tapered roller bearings used in pairs as often, when you install both the gap adjusting mechanism (usually with nuts or shims to adjust) in selected alternative bearings, contemporary bearing width is slightly thicker or thinner than the first wife when bearing, may not be combined with washers, only difference is large, padded only in the axial direction.
(3) Cylindrical Roller Bearing Replacement law
N2300-N2200, N300, N200 Replacement
N2200-N200, N1000 Replacement
N400-N300, N2200 Replacement
N300-N2200, N200 Replacement
N200-N1000 Replacement
In addition, there are cylindrical roller bearings NU0000 (formerly codenamed 32000) type, NJ0000 (formerly codenamed 42000) type, and both types have the N0000 (formerly codenamed 20,000) the same type of bearing diameter series, so its rules and N0000 Replacement type the same. Meanwhile, N0000 type, NU0000 type, NJ0000 type, NF0000 type also may be the alternative. For example, NU2312 (formerly codenamed 32612) bearing, by N2312 (formerly codenamed 2612) Bearing Replacement, exactly the same size, without processing.
Angular contact ball bearings Replacement law
Angular contact ball bearing according to the contact angle of the size of the division, there is a 15 ° and the 7000C (formerly codenamed 3600) type, a is 25 ° of 7000AC (formerly codenamed 46,000) type, a of 40 ° of 7000B (formerly codenamed 66,000) - type three species, each type has as deep groove ball bearing diameter series. In addition to their diameter within the range of this type of alternative, but also with each other alternative, and more with a large contact angle small contact angle of bearings Replacement bearings. Its alternative is the law:
7400C-7300C, 7200C, 7400AC, 7300AC, 7200AC Replacement
7300C-7200C, 7000C, 7300AC, 7200AC, 7000AC Replacement
7200C-7000C, 7200AC, 7000AC Replacement
For example, 7307C (formerly codenamed 36307) bearings, available 7208C (formerly codenamed 36208) bearing diameter casement padded Replacement; also available 7307AC (formerly codenamed 46307) Replacement bearings, its dimensions are identical, without processing.
Different types of bearings mutual Replacement law
The structure and size characteristics of the rolling bearing according to the comparative analysis, in most Rolling Code, the right three digits the same bearings, inner and outer diameter dimensions are exactly the same (except for needle roller bearings, one-way thrust ball bearings and non-standard bearings ), such as 6308 (formerly codenamed 308) bearing and N308 (formerly codenamed 2308), NU308 (formerly code 32308), NJ308 (formerly code 42308), 6308N (formerly code 50308), 6308-Z (formerly code 60308), 1308 ( formerly codenamed 1308), 7308C (formerly code 36308), 7308AC (formerly code 46308) and other bearing dimensions are 40 × 90 × 23 (mm), exactly the same size. Therefore, in selecting alternative bearing, when the same type of bearing can not find, can be widely choose other types of bearings Replacement.
usually:
Cylindrical roller bearings and deep groove ball bearing with each other alternative, followed by the available self-aligning ball bearings or spherical roller bearings Replacement.
Tapered roller bearings contact ball bearings and deep groove ball bearings and angular mutual substitution.
Spherical roller bearings and self-aligning ball bearing with each other alternative.
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