Bearings NA4903

PRODUCTS (Bearings NA4903)

Manufacturer

Number:

Inner diameter:

Outer diameter :

Product type:

Weight:

Bearings NA4903

Inner diameter:: 17 mm
Outer diameter: 30 mm
The size of the width: 13 mm
Weight:: 0.037 kg

Technical specifications

Designation: NA4903

Producer: INA

Technical data from the manufacturers catalog :

Inner diameter (d): 17 mm

Inner diameter (F): 22 mm

Outside diameter (D): 30 mm

Width (B): 13 mm

Weight: 0.037 kg

Limiting speed (rpm): 21000

Loading capacity dynamic (C): 11.0

Loading capacity dynamic (C0): 14.6

1.78 NBR 70(023,53x01,78)

Manufacturer: KASTAS

O-RING

Manufacturer: NQK SF

Sizes: 23.16x33.82x5.33 (mm)

1.78 NBR 70(114,02x1,78)

Manufacturer: KASTAS

SEALS (REINFORCED SEAL) (AS)

Manufacturer: FEKO

Sizes: 120x170x13 (mm)

3 NBR 70(064,50x03,00)

K31 PU/NBR/POM(101,6x114,3x14,28)

Manufacturer: KASTAS

Sizes: 101,6x114,3x14,28 (mm)

K09 PU(115x127x5,5/10)

Manufacturer: KASTAS

Sizes: 115x127x5,5/10 (mm)

6.99 NBR 90(215,30x06,99 )

Manufacturer: KASTAS

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.