Backing bearings are particularly thick outer ring of the rolling bearing, when used to form a group to be mounted on the shaft of a stationary support rollers. Pressure on the work roll through the intermediate roller and the support roller is passed to the system to the rack through the saddle. Generally used for multi-roll cold rolling mill equipment can also be used for other occasions, such as straightening machine.
2013年7月28日星期日
Needle roller bearings
Drawn cup needle roller bearing outer ring is thin steel precision stamping, structural space, and has a larger load capacity. For mounting space is limited and the housing bore should not be used as raceways occasions. And pressed into the bearing hole after having further axial positioning.
Main structure:
Structural features bearing code
HK Piercing Needle roller bearings
HK ... RS Piercing drawn cup needle roller bearings with single-sided with a ring
HK ... 2RS Piercing drawn cup needle roller bearings with double-sided tape seals
BK Drawn cup needle roller bearings
BK ... RS Sealed drawn cup needle roller bearing side with a ring
F Piercing drawn cup full complement needle roller bearings
FY Piercing drawn cup full complement needle roller bearings (grease limit)
MF Drawn cup full complement needle roller bearings
MFY Drawn cup full complement needle roller bearings (grease limit)
SCE SCH Piercing Needle roller bearings
BEC BCH Drawn cup needle roller bearings
B drawn cup full complement needle roller bearings
Needle roller backing bearings without inner ring general class. If you need to use the inner ring, inner ring IR type can be used.
DF bearings Needle roller bearings are divided into both ends of perforation (HK-type) and bearing one end closed (BK type). And perforation drawn cup needle roller bearings, sealed bearing is sealed at one end, suitable for shaft, and can withstand small axial momentum.。
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