Tapered roller bearing type system is huge, need to combine with structure type, size specification, contact angle and manufacturing standard comprehensive classification. Core model system and application scenarios are as follows:
First, according to the number of columns and typical models
1. Single row bearing
A. Generic model:
30203 (inner diameter 17mm × outer diameter 40mm, automotive transmission)
32008X2 (I.D. 40mm × O.D. 68mm, machine tool spindle)
32311 (ID 55mm x OD 120mm, construction machinery wheel hub)
B.High load models:
HR30312JP5 (dynamic load 174kN, NSK mining speciality)
Series 313 (contact angle 27°-30°, mill gearbox)
2.Double Row Bearing
A.Lightweight models:
T7FC series (SKF low friction wheel bearings)
32216-A (FAG seal-optimised, inner diameter 80mm x outer diameter 140mm)
B.Heavy-duty models:
32976P6 (precision grade tolerance, metallurgical equipment)
3.Four row bearings
A.Extra heavy-duty type:
313403C (O.D. 710mm x I.D. 1000mm, roll necks of steel rolling mills)
352032 (OD ≥ 300mm, continuous casting machine guide roll)
B.Inch Series:
TQO series (for TIMKEN rolling mill)
M268749DW (outer diameter 590mm, mine crusher)
