7228 Angular Contact Ball Bearing (140x250x42mm) Spindle bearings Ball Screw Bearing Ball screw support bearing

7228 Angular Contact Ball Bearing (140x250x42mm) Spindle bearings Ball Screw Bearing Ball screw support bearing

A . Angular Contact Ball Bearing Parameters

Brand- BYC

Structure- Angular Contact

Model number- 7228

Inner ring(mm)- 140

Outer ring(mm)- 250

Width(mm)- 42

Weight(Kg)- 8.09

Materials- Chrome steel/GCR15

Precision grade- P5/P4/P2

Lubrication type- Grease lubrication

Contact Angle- C=15°;AC=25°

Material(Ball)- Steel ball(SUJ2); SN24:Ceramic ball(Si3N4)

Number of Row- Single rows

Material(Cage)- TYN-PA;TR-PF

Combination of mark- "SU:Universal combination (single row)

DU:Universal combination (double rows)

DB: Back-to-back combination

DF: Face-to-face combination

DT: Parallel combination

DBD.DFD.DTD: Three rows

DBB.DFF.DBT.DFT.DTT: Four rows"

Preloaded mark- "EL: Micro preloaded

L : Light preload

M : Medium preloade

H : Heavy preloaded"

B . 7228 Angular Contact Ball Bearing Specification Sheet

C . 72 series Angular Contact Ball Bearing Details

Product FeaturesPrecision Angular Contact Ball BearingsDue to their internal design, angular contact ball bearings can withstand high radial-axial loads and reach high speeds. They are asymmetrical for manufacturing reasons and can withstand unidirectional axial loads only. Angular bearings are usually mounted in a group of two or more opposed preloaded units with rigid or elastic spacers. Typically, the inner and outer raceways and balls are made of chrome steel. Where operating conditions are severe, bearings may have ceramic balls creating a hybrid bearing.

Series IntroductionISO 02 Series - highest load, lowest speed bearings-72 Series Angular Contact Bearings

Series Model No."7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 7219 7220 7221 7222 7224 7226 7228 7230 7232 7234 7236 7238 7240 7244

"

Applications"Angular contact bearing applications :   

electric motors,Spindle,automotive applications, home appliances, industrial equipment."

 D . 72 series Angular Contact Ball Bearing Installation & Cautions

"Installation:

To obtain the best possible performance of the bearings, installation must be performed very carefully in ultra clean conditions.

Errors during fitting of ball bearings can jeopardize the best design and create high repair and maintenance costs. We would like to give some advise for proper mounting of bearings:

The workshop should be dust free with low humidity, no compressed air or machining is allowed.

Only unpack bearings immediately before installation. If grease is required it should be applied at this time, with a syringe. Do not use fingers or a spatula.

The use of a syringe is recommended to inject the grease right between the balls into the ball/raceway area. Nearly all standard greases are compatible to our rust preventive, so in most cases it is not necessary to wash the bearings prior to greasing. The only exceptions are special greases, based on silicone or fluorocarbon oils or PTFE-thickeners. They require a clean oil free surface to obtain good adhesion of the grease.

Never clean the bearings in ultra sonic devices! Allow the rust preventive to dissolve in a gasoline bath by slowly moving the bearings."

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

6.Nowadays, as a professional precision bearing manufacture, we are proud of continual innovation, flexible production, speedy delivery, rapid after-sales service(2 years) and quick response.

       Luoyang BoYing Bearing Co., Ltd,(BYC) is a professional manufacturer of high precision bearings, The main products of our company are Crossed roller bearings, YRT Rotary Table Bearings, Crossed Tapered Roller Bearings, Angular Contact Ball Bearing, Ball Screw Bearings, Slewing Bearings, Cylindrical Thrust Roller Bearing. The leading products include Crossed roller bearing RB, RE, RU,RA,CRBC, CRBH, XSU, SX series, rotary table bearings YRT, YRTS,YRTM,ZKLDF series, crossed tapered roller bearing JXR, XR series, almost whole range of precision bearings. The accuracy grades are P5, P4, P2, and the size of inner ring are ranging from Φ50mm --- Φ1300mm. Our products are optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines,mainly to replace the imported bearings. Also, we can design,choose and manufacture  non-standard,large size precision bearings as customer requested.

1. Industrial Neutral Packing,Package as your requirements.

2. Small size Bearings:Plastic vacuum packaging bag+Paper Box/Neutral Carton

3.Large size Bearings:Plastic film+Brown paper+Roll tape+Wooden Box

4.Shipping:By air or By sea:DHL/TNT/UPS/EMS etc

Tel: +86-379-62275175

SKYPE: lyboying

MSN:  lyboying@ 

Email: lyboying@

http://bycbearing.en.china.cn  

MP: +86-15515365379