30309 Tapered Roller Bearing

Item: 30309 bearing

Old Item: 7309E
Type: Taper roller Bearing
Size:45X100X27.25
Material:GCr15
Similar type:Black chamfer ,White chamfer
Place of Origin:Shandong,China (Mainland)
Quality standard: ISO9001:2000
Package:Single box or according to buyers requirement
The bearings are mainly used in metallurgy, milling, rolling mills, automobiles, machines, plastics and other industries
Physical Characteristics:
(1).Taper roller bearings have tapered inner and outer ring raceway between which tapered rollers are arranged.
(2).Three projection lines of all the tapered surfaces meet at a common point on the bearing axis. Their design makes taper roller bearing particular accommodation of combined (racial and axial) loads.
(3).The axial load carrying capacity of the bearings is largely determined by the contact angle.
(4).Taper roller bearing has the logarithmic contact profile that provides for optimum stress distribution over the roller/raceway/contacts.
(5).The special design of the sliding surfaces of the guide flange and large roller ends considerably promotes lubricant film formation in the roller.