7211E taper bearing 30211 roller bearings 55*100*22.75mm taper roller bearing

1.Industry package: Plastic paper+Kraft paper,10pcs or 5pcs/roll

2.Plastic tube: 10pcs/tube or 5pcs/tube

3.Single box: plastic bag+single box, OEM supply

4.Carton: Standard export carton(380*240*180mm) or as your need.

5.Pallet: Wooden or Iron pallet with plastic film against moisture.

6.Pallet size: 100*76*76(cm), 0.58CBM

7.Package as your requirement

8.Mark : X&Y SRBF WYP,as your demand.

1.Your inquiry to our product & price will be replied within 24hours 

2.Well-trained & experienced staff are to answer all your inquiries in English of course. 

3.OEM & ODM projects are highly welcomed. We have strong R&D team here to help. 

4.Your business relationship with us will be confidential to any third party. 

5.Good after-sale service offered, please get back if you got question

Brand: X&Y WYP SRBF;as your requirements,we can do the brand as your needs.

Service:OEM,Buyer Label Offered,Design Service Offered.

Company Certifications: ISO9001:2008,BV,CE

Main Markets:

Eastern Europe,South America,Domestic Market, Brazil,Russia, North America,Turkey etc.

Main Products:

1,Ball Bearings (Deep Groove Ball Bearing, Angular Contact Ball Bearing,  Thrust Ball Bearing, Self-aligning Ball Bearing);

2,Roller Bearings (Taper Roller Bearing, Cylindrical Roller Bearing, Thrust Roller Bearing, Spherical Roller Bearing);

3,Pillow Block Bearing 

What is the main function of a bearing lubricant?

Ans: Bearing lubricant should establish and maintain a micro film of oil between rotating and static

members. The forming of the elastic hydrodynamic film is the result of a build-up wedging

action of the lubricant between rolling elements and raceways.

Reasons for lubrication failure are following:

1) Incorrect selection of the grease base for a particular application. 

2) Use of static or circulating oil in a improper manner. 

3) Insufficient lubrication either in quantity or in required viscosity. 

4) Deterioration of prolonged service without proper intervals. 

5) Contamination of the lubricant and the bearing with foreign materials.

If any items you interested, feel free to contact me!