SAIFAN NSK Ball Bearing 2311 Self-aligning Ball Bearing 2311K Bearing Sizes 55*120*43mm

1.The Features of Self-aligning Ball Bearing:

1:Self-aligning ball bearings can be made of plastic, ceramic, stainless steal and bearing steal.
2:The self-aligning ball bearings with tapered hole named K behind the model number and with rubber on it name 2RS behind the model number.
3:Self-aligning ball bearings has two kinds of structures which are cylindrical bore and tapered bore. The material of the cage can be steel plale or synthetic resine etc. Its speciality is that its outer race are in spherical shape, and with the ability of self-aligning.

4:It can repair the errors caused by different concentricity and deflection ,but its inner and outer ring relative slop is not allowed to be over 3 degrees.

2.Self-Aligning Ball Bearing Introductions:

3.Suffix Definitions of Self-aligning Ball Bearings:

C3: radial clearance than ordinary clearance

K: 1/12 taper tapered bore

K30: 1/30 taper tapered bore

M: Ball guided machined brass cage

2RS: with both ends of closures

TV: ball guide glass fiber reinforced polyamide (nylon) solid cage

4:Self-aligning Ball Bearings Application:

Self-Aligning ball bearings to withstand heavy load and impact load, precision instruments, low noise motors, automobiles, motorcycles, metallurgy, mill, mining, petroleum, paper, cement, sugar and other industries, and general machinery.

5.Related Products:

Miniature series:100 series;120 series;130 series

General series:1200 Series;1200K Series;1300 Series;1300K Series,

                           2200 Series; 2200K Series;2300 Series; 2300K Series.

 SOLUTION

– At the beginning, we will have a communication with our customers on their demand, then our  engineers will work out an optimum solution based on the customers’ demand and condition.
 PRODUCTION

– Running in accordance with ISO 9001 quality system, the advanced production equipments,  sophisticated processing technology, strict quality management system, skilled workers and innovative technical team, make our bearings in continuous quality improvement & technology development.
 QUALITY CONTROL (Q/C)

- In accordance with ISO standards, we have professional Q/C staff, precision testing instruments and internal inspection system, the quality control is implemented in every process from material receiving to products packaging to ensure our bearings quality.
 PACKAGE

– Standardized export packing and environment-protected packing material are used for our bearings, the custom boxes, labels, barcodes etc. can also be provided according to our customer’s request.
 LOGISTIC

 – Normally, our bearings will be sent to the customers by ocean transportation due to its heavy weight, airfreight, express is also available if our customers need.
 WARRANTY

– We warrant our bearings to be free from defects in material and workmanship for a 12 months period from the shipping date, this warranty is voided by non-recommended use, improper installation or physical damage.

High Quality Bearings, Choose Saifan.
Jinan Saifan Bearing Co., Ltd is a professional bearing manufacture located in Jinan, Shandong.

We are established in year 2005 and we have 10 years experience in bearing manufacture.
We mainly produce wheel hub bearings, ball bearings, roller bearings etc.

 

Q:What’s your after-sales service and warranty?

A: We promise to bear the following responsibility when defective product is found:

1.12 months warranty from the first day of receiving goods;

2. Replacements would be sent with goods of your next order;

3. Refund for defective products if customers require.

Q:Do you accept ODM&OEM orders?

A: Yes, we provide ODM&OEM services to worldwide customers, we are able to customize housings in different styles, and sizes in different brands, we also customize circuit board & packaging box as per your requirements.

Q:What’s the MOQ?

A: MOQ is 10pcs for standardized products; for customized products, MOQ should be negotiated in advance. There is no MOQ for sample orders.

Q:How long is the lead time?

A: The lead time for sample orders is 3-5 days, for bulk orders is 5-15 days.

Q:Do you offer free samples?

A: Yes we offer free samples to distributors and wholesalers, however customers should bear freight.

We DO NOT offer free samples to end users.

Q:How to place orders?

A: 1. Email us the model, brand and quantity, consignee information, shipping way and payment terms;

2. Proforma Invoice made and sent to you;

3. Complete Payment after confirming the PI;

4. Confirm Payment and arrange production.