Why you Choose SONKING bearing as your supplier?

We are a long history and one of the biggest inserted ball bearings with housing manufacturer in china since 1988.

Staff training (our company giving staff training at regular interval, the purpose is strengthening the team-work spirit and the improving skill knowledge)

Top quality (our company have passed the ISO9001:2008 international certification .we have top skilled worker who know about many experience in bearing field and latest technical test-equipment to make sure the quality)

prompt delivery(Monthly out put can up to 300000 sets to satisfied the customer urgent required, only one week if have stock)

Competitive price (You know our products with strictly check and long lifetime high quality, so we can offer this price of products better than our competitor)

Make your money security (We have more than 30 years in bearing field, having founded good reputation in domestic and abroad)

Brand(We have our own “XLD” brand for inserted ball bearing with housing and “OCPU” brand for motor /deep groove ball bearing)

So many reasons make you choose SONKING bearing.

YEAH, WE ARE ZHE JIANG BILLION STRONG BEARING MACHINERY CO.LTD.

ENGEERING INFORMATION

RINGS&BALLS-XLD uses home made or imported vacuum degrassed.high carbon,chromium bearing steel as it is standard material for precision bearing rings and balls.

RETAINERS-XLD standard bearing retainers are made from quality cold rolled carbon steel. Nylon or brasses are available upon request.

SEALSS&SHIELDS-XLD shields also employ quality carbon steel as standard. LD uses a variety of high temperature operation and compatibility with grease.Buna-Nitrile is the

standard material used.

LUBRICATNTS-XLD are chevron and Alvania#2 used in our factory.

2. Tolerance

Bearing tolerance includes dimensional tolerance and revolving tolerance. dimensional tolerance is a request when bearings are mounted on shafts or in housings. it includes bore /outer side diameter deviation from basic.innerring /outer ring width deviation from basic and radius allowance. Geometric tolerance includes bore/outside diameter deviation in single planne,innerring /outerring width deviation in single radial plane. revolving tolerance includes radial and axial run out of assembled bearing innerring and outerring,innerring referring reference face run out with bore and outside cylindrical surface run out with outerring reference face.

Tolerance class ranges from common class 0to 6 5 4 and 2, from low to high,tolerance class as below text.

3 Clearance

Bearing clearance means the value of displacement of the unfixed ring when it moves against the fixed ring in radial or axial direction before the bearing in mounted on a shaft or in a housing, according to movement direction it falls into radial clearance and axial clearance.

The standard clearance for XLD deep groove ball bearings are dividing into four groups,C2 C0 C3 C4 as show below.

4.Vibration

Bearing vibration means bearing components elastic information that varies with time and all other movement that deviates from a theoretic position except that necessary to bearing functions, it has two modes-acceleration(db0and velocity (UM/s),vibrarion accelerarion level rangesfrom low to high.similary,vibration velocity is examined as per V V1 V2&V3grade V is fundamental V1 V2 V3 successively indicate the vibration level from low to high..generally,Velocity examination is better than acceleration examination in that it can more reflect bearings manufacturing level and bearings inherent quality.

While our company keeps control of vibration velocity values,we also carry out vigorous control on abnormal noise from running bearings in test according to requirements of electric motor quality bearingd.

2,our manufacturer.

Our factory builds up according to bearing standard workshop, which has complete production line to make the finishing bearing.

3. Quality control

4 ISO 9001:2008 Certification

5.packing and trade information

6. Company introduction