INA Crossed Roller Bearings

INA Crossed Roller Bearings

Luoyang TEDIN Bearing Co., Ltd supply similar types of INA crossed roller bearings for customers, such as: XSA series , XSI series , and XSU series crossed roller bearings, etc. Our products are widely used in industrial robots, reducer drives, NC rotary tables, rotating parts of machine tools, inspection instrument, medical equipment, etc.

The structure of SX series crossed roller bearing is similar to RB series, and the outer ring is divided into 2 pieces, with the inner ring rotating, which is connected by three fixed rings. It is suitable for these parts with high precision of inner ring rotation. Compared with these standard types, SX series crossed roller bearing’s rigidity is increased by 3 or 4 times. The inner ring or outer ring is two separate structures, the clearance of the bearing can be adjusted. Even if the bearing is preloaded, it can also be rotated with high precision, high rigidity, high bearing capacity, small volume, etc. 

Our advantage:

1. Offer solutions for customer's working occasions;

2. Fast delivery: We have bulk standard crossed roller bearings in stock.

3. Competitive Price:  As a manufacturer, our price is much competitive than traders.

4. Samples or small orders accepted.

5. OEM service available.

Our Products Accuracy:

Our Producing Process:

1. Forgings: 

We select high-quality bearing steel for crossed roller bearing, with higher purity. The forgings are inspected for dimensions, in order to ensure that all dimensions are with correct tolerance. The metallograpy test also been operated to ensure there is no defect in the internal structure of this batch forgings.

2. CNC Turning:

According to the drawing of turning process, the end face both of the inner ring and outer ring, the oil groove, the inner and outer diameters, the ribs and the chamfers are turned, and the dimension allowances should be guaranteed for the following process.

Machine tools: CNC lathe

3. Drilling:

We use high-precision machining center to process the connecting holes, mounting holes and oil holes of the inner ring and outer ring of the crossed roller bearing.

4. Heat Treatment:

According to different materials, heat treatment can be divided into surface quenching and through-hardened. The surface quenching is suitable for the material of 42GrMo, and the surface hardness of the raceway is HRC55~60. The through-hardened heat treatment is suitable for the materials such as GCr15, GCr15SiMn, and hardness of the parts can reach to HRC 58 - 62.

5. Rough Grinding:

We use automatic precision grinding machine for rough grinding, grinding the turning allowance, eliminating deformation from heat treatment, improving product accuracy, and laying a good foundation for the final grinding process.

6. Chamfer Hard Maching:

This process is to process the chamfers, oil grooves, and ribs of the crossed roller bearing to improve accuracy and appearance.

7. Multiple Tempering:

Through 120° to 150° low temperature tempering, to eliminate the stress and deformation of the inner ring or outer ring during grinding, and to improve the product's stability.

8. Final Grinding:

Adopt high-precision automatic CNC grinding machine to grind the product to meet the requirements of process design and meet the customer's working accasion. The grinding accuracy can reach to 0.001 mm.

9. Assembling:

Clean, demagnetize and group the product parts, and assemble the products according to the process requirements and meet the accuracy requirements of the entire set bearing.

10. Final Inspection:

Carry out full inspection of assembled products on the dimensions, accuracy, clearance, appearance, etc, to ensure that the complete set of crossed roller bearing is qualified. 

11. Laser Marking and Packaging:

Clean, demagnetize, anti-rust, laser-marking, packing and packaging to crossed roller bearings ready for shipment.

INA SX series Crossed Roller Bearing Catalogue:

http://www.tedin-bearing.com/