WZZG Tapered Roller Bearings 2pcs/lot 30308(7308) High Quality Bearings size 40*90*23 mm
$23.19 USD
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Model and size: 30308(7308)
Bearing name and size
Item: 30308
Type: Tapered Roller Bearing
Material: bearing steel
Dimensions: 40mm x 90mm x 23mm
Inner diameter: 70mm
Outer Diameter: 90mm
Width: 23mm
Quantity: 2 PCS
Structure of tapered roller bearings
Tapered roller bearings consist of outer ring, inner ring, rollers and cage. The rolling elements of the bearing are tapered rollers, which are guided by the inner ring back rib on the large end face of the roller. The raceway surfaces of the inner and outer rings and the rolling contact surfaces of the rollers are designed so that their respective vertices are at a point on the bearing centerline. Bearings are classified into standard type, intermediate type and steep type according to the contact angle (α). The larger the contact angle, the greater the resistance of the bearing to axial loads.
Advantages of tapered roller bearings
Long life even in contaminated lubricants Durable steel cage dimensions interchangeable with other bearing manufacturers Typical applications for tapered roller bearings Tapered roller bearings are used in heavy duty, medium speed applications.
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