NTN 7228BDF Bearings

Model No : 7228BDF
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NTN 7228BDF Bearing | Angular contact ball bearings 7228BDF

Bearing 7228BDF

Bearing number : 7228BDF

Size (mm) : 140x250x42

Brand : NTN

Bore Diameter (mm) : 140

Outer Diameter (mm) : 250

Width (mm) : 42

Bearing dimensions and specification in NTN catalogue:

d - 140 mm

D - 250 mm

B - 42 mm

ra1 max. - 1 mm

Angle (α) - 40 °

a - 103 mm

r min. - 3 mm

r1 min. - 1,1 mm

2B - 84 mm

Da max. - 236 mm

ra max. - 2,5 mm

Weight - 17,56 Kg

Basic dynamic load rating (C) - 297 kN

Basic static load rating (C0) - 390 kN

(Grease) Lubrication Speed - 1 900 r/min

(Oil) Lubrication Speed - 2 500 r/min

Tags :  NTN , 140x250x42

Angular contact ball bearings 7228BDF NTN 7228BDF Professional Supplier Information

We are a manufacturer and supplier specializing in research, development and production of Angular contact ball bearings 7228BDF NTN 7228BDF bearings.

The company's core bearings are Angular contact ball bearings 7228BDF NTN 7228BDF, and deep groove ball bearings, self-aligning ball bearings, self-aligning roller bearings, wheel bearings, linear bearings, bearing blocks, ceramic bearings, plastic bearings and other bearings, cylindrical roller bearings , Angular contact ball bearings, tapered roller bearings, thrust ball bearings, thrust roller bearings and needle roller bearings and other spherical plain bearings and other fine bearings.

Our Angular contact ball bearings 7228BDF NTN 7228BDF bearings and other bearings are 100% compliant with the international quality standard ISO 9001 and are highly appreciated in various markets around the world.

How does Angular contact ball bearings 7228BDF NTN 7228BDF work for you for a long time?

  • The installation is correct, affect the accuracy, life, performance. After installation, fill the bearing with lubricant.
  • Do not let hammer, transfer roller pressure and other strong impact
  • Use precise installation tools to avoid the use of fabrics and staple fibers
  • Lubricate the bearings to avoid rusting of high quality mineral oils, especially in summer
  • General inspection, such as ambient temperature, vibration, noise check
  • Keep the bearings clean from dust, contaminants, and moisture.
  • Bearings can not be ultra-cold.

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