1. Angular contact ball bearings:
7xxxB: contact angle of 40 °.
B7xxx.C: contact angle of 15 ° (high-speed spindle bearing)
B7xxx.E: contact angle of 25 ° (high-speed spindle bearing)
Double-row 32xxB and 33xxB == 52xx and 53xx (NACHI), with a loaded ball gap, the contact angle of 35 °. No suffix double row angular contact ball bearings 32xx and 33xx and other brands, said the same way. In which a double and a half 33xxDA said bearing inner ring, the contact angle 45 °
combination: O-type = DB, X-type = DF, T-type = DT.
2. Thrust angular contact ball bearings:
Such bearings main axial load, a separate one-way only to withstand axial load, double column can withstand a two-way axial load. Its model series include:
separate: 7602xxx, 7603xxx Series
double row: 2344xx, 2347xx Series
3. Pulley special cylindrical roller bearings:
Normal: NNF50xx.B.2LS.V (FAG) == NAS50xxUUNR (IKO) E50xx (NACHI)
full roller-type: NNC49xxV (FAG) == NAG49xx (IKO)
4. Self-aligning ball bearings:
Bearing model series has 112xx, 113xx, and 115xx. This type of bearing inner ring longer, and has a slot for the use of set screws with a fixed axis. If the bearings installed in pairs, which slot should be relative to prevent the two axial movement.
Of which: 112xx == 12xx, 113xx == 13xx
5. Insert bearings with eccentric dwelling size KH Series:
Metric: 162xx == KH2xx (ASAHI). Diameter measurements with the ordinary methods of calculation.
Of which: 16203/12 == KH201; 16203/15 == KH202; 16203/17 == KH203.
Inch: 162xx.xxx.
EX,16,207.104, its diameter size as follows: 1 +4 / 16 inches, that is 31.75mm;
16,207.008 diameter size is 0 +8 / 16 inches, the 12.7mm.
One fourth-and fifth-digit xx get close to the actual metric size of the size of One fourth-and fifth-digit xx get closer to the actual metric size of the size of code.
6. Insert bearings with eccentric dwelling size UG series:
Metric: 362xx == UG2xx (ASAHI) == HC2xx (HIC).
Note: The diameter of non-36204 following dimensions!
Inch: 362xx.xxx ibid KH series. Inch minimum diameter size of 20mm or so, without even smaller size.
7. Flat-aligning ball bearings Thrust:
one-way normal: 511xx, 512xx, 513xx, 514xx.
two-way normal: 522xx, 523xx.
one-way self-aligning: 532xx, 533xx. Its application for U2xx seat or U3xx.
bi-directional self-aligning: 542xx, 543xx. Its application for U2xx seat or U3xx.
8. Flat thrust roller bearings:
811xx, 812xx == AZxxxxxx (IKO)
Eg: 81106 == AZ304711 (IKO); 81206 == AZ305216 (IKO).
9. With a block bearing Model Swap:
17304 == BPPxx (ASAHI)
562xx == UC2xx (ASAHI). Inch size calculation method with the.
762xx == CS2xx (NSK) == SC2xx (JIB)
162xx == KH2xx (ASAHI)
362xx == UG2xx (ASAHI) == HC2xx (HIC)
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