Bearing 3980 / 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: 3980 / 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
Подшипник 7328DB
Manufacturer: NACHI
Sizes: 140x300x62 (mm)
Weight:: 21.5 (kg)

STUFFING BOX (REINFORCED CUFFS) NON-STANDARD (SC)
Manufacturer: STO
Sizes: 280x320x18 (mm)

RPP8 3552 ( RPP 8 3552 -V, -M, -MFX )
Manufacturer: ContiTech AG

AT3/639 GEN III ( АТ3 639 GENIII )
Manufacturer: ContiTech AG

Bearing 6307 ZZ
Manufacturer: ETERNO
Sizes: 35x80x21 (mm)
Weight:: 0.467 (kg)

ПОДШИПНИК РОЛИКОВЫЙ ИГОЛЬЧАТЫЙ RNA4822
Manufacturer: INA-FAG
Sizes: 120x140x30 (mm)

ПОДШИПНИК РОЛИКОВЫЙ ОДНОРЯДНЫЙ СФЕРИЧЕСКИЙ 20212-K-TVP-C3
Manufacturer: FAG
Sizes: 60x110x22 (mm)

3.53 FKM 80(024,99x03,53 )
Manufacturer: KASTAS

22x2670 C 105
Manufacturer: ContiTech AG

SEALS (REINFORCED SEAL) (A)
Manufacturer: FEKO
Sizes: 32x52x6 (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.