Bearing 3979 / 3925
Inner diameter:: 57.15 mm
Outer diameter: 112.712 mm
The size of the width: 36.513 mm
Weight:: 1.53 kg
Outer diameter: 112.712 mm
The size of the width: 36.513 mm
Weight:: 1.53 kg
Technical specifications
Designation: 3979 / 3925
Producer: TIMKEN
Technical data from the manufacturers catalog :
Inner diameter(d): 57.15 mm
External diameter(D): 112.712 mm
Working width (T): 36.513 mm
Width (height) (B): 36.398 mm
Outer cage width (C): 24.605 mm
Internal chamfer radius (R): 3.5 mm
Outside chamfer radius (r): 3.3 mm
Cr (KN): 119
Cor (KN): 174
a: 25.6 мм
Width: 1.53 mm
Bearings KR47-X-PP-A
Manufacturer: INA-FAG
Weight:: 0.39 (kg)

O-RING
Manufacturer: NQK SF
Sizes: 2.20x6.00x1.90 (mm)

Подшипник 5208ZZ
Manufacturer: NACHI
Sizes: 40x80x30.2 (mm)
Weight:: 0.57 (kg)

T10 1400 ( Т10 1400 ) MEGADYNE MEGAPOWER
Manufacturer: ContiTech AG

Bearing NNU4922K/W33P5 (D4382922K)
Manufacturer: TMB
Sizes: 110x150x40 (mm)
Weight:: 2.07 (kg)

SALNIK REINFORCED (TC)
Manufacturer: NQK SF
Sizes: 98x130x12 (mm)

A 136 13x3455 Li / 3485 Ld
Manufacturer: ContiTech AG

O-RING
Manufacturer: NQK SF
Sizes: 109.00x116.10x3.55 (mm)

Подшипник 6318NR
Manufacturer: NSK-RHP
Sizes: 90x190x43 (mm)
Weight:: 4.98 (kg)

K21 NBR(50x60x12)
Manufacturer: KASTAS
Sizes: 50x60x12 (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.