Bearing 28678 / 28621
Inner diameter:: 50.8 mm
Outer diameter: 96.838 mm
The size of the width: 24.608 mm
Weight:: 0.834 kg
Outer diameter: 96.838 mm
The size of the width: 24.608 mm
Weight:: 0.834 kg
Technical specifications
Designation: 28678 / 28621
Producer: TIMKEN
Technical data from the manufacturers catalog :
Inner diameter(d): 50.8 mm
External diameter(D): 96.838 mm
Working width (T): 24.608 mm
Width (height) (B): 24.608 mm
Outer cage width (C): 19.446 mm
Internal chamfer radius (R): 3.5 mm
Outside chamfer radius (r): 0.8 mm
Cr (KN): 88.5
Cor (KN): 128
a: 21.2 мм
Width: 0.834 mm
Bearing WS87409
Manufacturer: INA-FAG
Sizes: 45x100x9 (mm)
Weight:: 0.440 (kg)

Bearing NJ412M (42412H)
Manufacturer: TMB
Sizes: 60x150x35 (mm)
Weight:: 3.1 (kg)

Подшипник 6911DDU
Manufacturer: NSK-RHP
Sizes: 55x80x13 (mm)
Weight:: 0.189 (kg)

Bearing 15117 / 15250
Manufacturer: TIMKEN
Sizes: 30x63.5x20.638 (mm)
Weight:: 0.35 (kg)

K79 POLYESTER/GRAPHITE(47x50x5)
Manufacturer: KASTAS
Sizes: 47x50x5 (mm)

Bearing 23132 KMW33
Manufacturer: ETERNO
Sizes: 160x270x86 (mm)
Weight:: 20 (kg)

K21 NBR(120x140x10)
Manufacturer: KASTAS
Sizes: 120x140x10 (mm)

Bearing NUP319EM (92319EH)
Manufacturer: TMB
Sizes: 95x200x45 (mm)
Weight:: 6.3 (kg)

K84 PU(100x90x7,8)
Manufacturer: KASTAS
Sizes: 100x90x7,8 (mm)

SEALS (REINFORCED SEAL) (D)
Manufacturer: FEKO
Sizes: 116x130x10 (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.