30209 Bearing 45x85x20.75mm

Item: 30209  Bearing
Type: Nachi Tapered Roller Bearing
Cage: Chrome Steel
Dimensions: 45mm x 85mm x 20.75mm/Metric
ID (inner diameter)/Bore: 45mm
OD (outer diameter): 85mm
Width/Height/thickness: 20.75mm
Size: 45 x 85 x 20.75 mm
Quantity: One Bearing
Dynamic load rating Cr: 67,200 N
Static load rating Cor: 77,400 N
Limiting Speed:
Grease Lubrication: 4,600 RPM
Oil Lubrication: 6,100 RPM

Tapered roller bearings consist of four basic components including the cone (inner ring), the cup (outer ring), tapered rollers, and a cage (roller retainer).

Tapered roller bearings are designed such that their conical rollers and raceways are arranged so that all elements of the roller and raceway cones meet at a common apex on the bearing axis. The rollers are guided by the contact between the large end of the roller and the rib on the inner ring (cone).
This construction provides a high capacity for radial loads, axial loads, and combined loads. The larger the contact angle, the greater the loading capacity becomes. When a pure radial load is placed on the bearing, an induced load in the axial direction is also generated. So, these bearings are generally used in pairs opposing each other. Tapered roller bearings have the inherent advantage of being adjustable and, they can be set to approach optimum performance in almost any application.

Tapered roller bearings are mainly used in Agriculture, Construction machinery, Automobiles, Gear Boxes & Rolling Mills. We offers a wide range of roller bearings in a variety of configurations like single row, double row & four row.

tapered roller bearings - 30209