30211 Tapered Roller Bearing 55*100*21mm Chrome Steel GCR15 SUNBEARING

Product Description Tapered Roller Bearing 30211 Specification Design Units Metric Structure Roller Bearing Weights 0.735kgs Cage Material Steel cage Material Chrome Steel GCR15 Ball Type Carbon chromium steel Seals Type Metal Seals Certificate ISO9001:2008 Advantage Low noise, less vibration, high precision and long life Number of Row Single Dimensions d-Bore Diameter 55mm D-Outer Diameter 100mm Precision Rating P5 P6 P4 P2 P0 Clearance C2 C3 C4 C5 C0 H-Total Width 21mm Basic Load Ratings Cr Dynamic Load Rating 102800N C0r Static Load Rating 106000N The inner or outer ring of double row taper roller bearing is a whole. The small end of two inner (or outer) rings are similar. There is a spacer between two rings. The clearance is adjusted by the thickness of the spacer. The spacer can also be used to adjust the pre-surplus of double row tapered roller bearings. 35000 double row tapered roller bearings have a variety of internal structure: -- with a spacer and a steel plate punched window-type cage -- with a spacer , hollow roller and pillar steel cage 37000-type structure of double row tapered roller bearings have a variety of internal structure: -- with a spacer, cage and steel plate. -- with a spacer, hollow roller and steel pillar type cage. Application: Tapered roller bearings are widely used in automobiles, rolling mills, mining, metallurgy, plastics machinery and other industries. Single row taper roller is the most be used of the taper roller bearing series. The small sizes Double row taper roller are used in the car wheel hub in the recently years. Four-row taper roller bearings were used in large cold, hot rolling mill, and other heavy machinery. Double row tapered roller bearings are mainly used for gear boxes, lifting equipment, rolling mills and for mining machinery, such as tunnel boring machine.