Bearings NA4844
Inner diameter:: 220 mm
Outer diameter: 270 mm
The size of the width: 50 mm
Weight:: 6.38 kg
Outer diameter: 270 mm
The size of the width: 50 mm
Weight:: 6.38 kg
Technical specifications
Designation: NA4844
Producer: INA
Technical data from the manufacturers catalog :
Inner diameter (d): 220 mm
Inner diameter (F): 240 mm
Outside diameter (D): 270 mm
Width (B): 50 mm
Weight: 6.38 kg
Limiting speed (rpm): 2000
Loading capacity dynamic (C): 243.0
Loading capacity dynamic (C0): 790.0
Подшипник 51240
Manufacturer: NACHI
Sizes: 220x280x62 (mm)
Weight:: 0.73 (kg)

Подшипник 7215CDT
Manufacturer: NACHI
Sizes: 75x130x25 (mm)
Weight:: 1.23 (kg)

O-RING
Manufacturer: NQK SF
Sizes: 74.00x79.00x2.50 (mm)

SEALS (REINFORCED SEAL) (AS)
Manufacturer: FEKO
Sizes: 55x72x13 (mm)

SALNIK REINFORCED (TC)
Manufacturer: NQK SF
Sizes: 45x58x12 (mm)

Bearing BK4520
Manufacturer: INA-FAG
Sizes: 45x52x20 (mm)
Weight:: 0.056 (kg)

K23 PU(60x44x12)
Manufacturer: KASTAS
Sizes: 60x44x12 (mm)

Bearing 625-YB/ZZP5 (D80025YB)
Manufacturer: TMB
Sizes: 5x16x5 (mm)
Weight:: 0.005 (kg)

Bearing 30312 (2FB)
Manufacturer: GMB
Sizes: 60x130x31 (mm)
Weight:: 1.99 (kg)

ContiTech HTD 5M 15 HF
Manufacturer: ContiTech AG


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.