Bearing BK4520
Inner diameter:: 45 mm
Outer diameter: 52 mm
The size of the width: 20 mm
Weight:: 72 kg
Outer diameter: 52 mm
The size of the width: 20 mm
Weight:: 72 kg
Technical specifications
Designation : BK4520
Dimensions, mm : 45x52x20
Producer : ETERNO
Technical data from the manufacturers catalog :
Weight - 72 Kg
Dynamic load rating (C) - 22000 kN
Static load rating (C0) - 51000 kN
Grease lubrication speed - 5800 rev/min
Подшипник 7202CDF
Manufacturer: NACHI
Sizes: 15x35x11 (mm)
Weight:: 0.048 (kg)

Подшипник C 2215 V
Manufacturer: SKF
Sizes: 75x130x31 (mm)
Weight:: 1.65 (kg)

SALNIK REINFORCED (TC)
Manufacturer: NQK SF
Sizes: 520x570x25 (mm)

STUFFING BOX (REINFORCED CUFFS) NON-STANDARD (TGR)
Manufacturer: STO
Sizes: 35x47x7 (mm)

Bearing 2280
Manufacturer: INA-FAG
Sizes: 50.800x82.550x20.638 (mm)
Weight:: 0.406 (kg)

Подшипник 6810ZZ
Manufacturer: NSK-RHP
Sizes: 50x65x7 (mm)
Weight:: 0.05 (kg)

O-RING
Manufacturer: NQK SF
Sizes: 187.00x195.00x4.00 (mm)

RPP8 3208 ( RPP 8 3208 -V, -M, -MFX )
Manufacturer: ContiTech AG

Bearing NN3009 K
Manufacturer: ETERNO
Sizes: 45x75x23 (mm)
Weight:: 0.393 (kg)

K06 NBR(22x30x7/5)
Manufacturer: KASTAS
Sizes: 22x30x7/5 (mm)


INSTALLING BEARINGS
Approximately 16% of all early pill accidents are caused by faulty mounting (generally excessive force) and lack of proper tools.

DROPPING BEARINGS
The need for dismantling (removal) of the bearing can be caused by several reasons: failure of the bearings, disassembly of other parts of the mechanism, and so on.

SELECTION OF FUEL OILS
The use of grease to lubricate the bearings ensures smooth operation and maximum reliability of bearings, even in extreme conditions.