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
Подшипник NA4924
Manufacturer: NSK-RHP
Sizes: 120x165x45 (mm)
Weight:: 2.9 (kg)

Bearing 2790 / 2729
Manufacturer: TIMKEN
Sizes: 33.338x76.2x23.812 (mm)
Weight:: 0.574 (kg)

SALNIK REINFORCED (TC)
Manufacturer: NQK SF
Sizes: 35x66x10 (mm)

K17 PTFE/NBR(40x29x4,2)
Manufacturer: KASTAS
Sizes: 40x29x4,2 (mm)

K33 PU(25x33x5,5)
Manufacturer: KASTAS
Sizes: 25x33x5,5 (mm)

O-RING
Manufacturer: NQK SF
Sizes: 186.02x200.00x6.99 (mm)

HTD 8M 1616 ( HTD8M 1616 -V, -M, -MFX )
Manufacturer: ContiTech AG

полиуретановый зубчатый ремень RPP8 85
Manufacturer: ContiTech AG

Bearing 29284 (9039284)
Manufacturer: TMB
Sizes: 420x580x95 (mm)
Weight:: 75.5 (kg)

SEALS (REINFORCED SEAL) (AS)
Manufacturer: FEKO
Sizes: 145x175x15 (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.