SD.750.20.00.C detailed product parameters
| Designation |
Dimensions |
Mounting Hole Size |
Structure dimensions |
Coa(kN) |
kg |
|
| |
|
|
|
D |
d |
H |
D1 |
D2 |
n1 |
n2 |
φ1 |
φ2 |
D4 |
d2 |
H1 |
H2 |
d1 |
D3 |
|
| |
|
230.20.0400.013 |
|
518 |
304 |
56 |
490 |
332 |
8 |
12 |
18 |
18 |
|
|
45.5 |
45.5 |
415.5 |
412.5 |
250 |
23.4 |
|
| |
|
230.20.0400.503 |
|
518 |
304 |
56 |
490 |
332 |
16 |
24 |
18 |
18 |
|
|
45.5 |
45.5 |
415.5 |
412.5 |
250 |
23 |
|
| |
|
|
SD.505.20.00.C |
518 |
304 |
56 |
490 |
332 |
8 |
12 |
18 |
φ18 |
453 |
375 |
46 |
46 |
415.5 |
412.5 |
500 |
24.3 |
|
| LYDZ200414ZT |
VLU200414ZT |
|
|
518 |
304 |
56 |
490 |
332 |
8 |
12 |
φ18 |
φ18 |
458.5 |
369.5 |
47.5 |
47.5 |
415.5 |
412.5 |
600 |
26.5 |
|
| LYDZ200414 |
VLU200414 |
|
|
518 |
304 |
56 |
490 |
332 |
8 |
12 |
18 |
18 |
|
|
47.5 |
47.5 |
415.5 |
412.5 |
295 |
23.5 |
|
| |
|
230.21.0475.013 |
|
517 |
305 |
56 |
490 |
332 |
8 |
12 |
18 |
18 |
|
|
45.5 |
45.5 |
415.5 |
412.5 |
250 |
23.4 |
|
| |
|
230.20.0500.013 |
|
648 |
434 |
56 |
620 |
462 |
10 |
14 |
18 |
18 |
|
|
45.5 |
45.5 |
545.5 |
542.5 |
330 |
31 |
|
| |
|
230.20.0500.503 |
|
648 |
434 |
56 |
620 |
462 |
20 |
28 |
18 |
18 |
|
|
45.5 |
45.5 |
545.5 |
542.5 |
330 |
30.4 |
|
| |
|
|
SD.650.20.00.C |
648 |
434 |
56 |
620 |
462 |
10 |
14 |
18 |
φ18 |
583 |
505 |
46 |
46 |
545.5 |
542.5 |
660 |
32 |
|
| |
|
230.20.0500.013 |
|
648 |
434 |
56 |
620 |
462 |
20 |
28 |
φ18 |
φ18 |
583 |
505 |
45.5 |
45.5 |
545.5 |
542.5 |
660 |
30.4 |
|
| LYDZ200544ZT |
VLU200544ZT |
|
|
648 |
434 |
56 |
620 |
462 |
10 |
14 |
φ18 |
φ18 |
588.5 |
499.5 |
47.5 |
47.5 |
545.5 |
542.5 |
800 |
35.4 |
|
| LYDZ200544 |
VLU200544 |
|
|
648 |
434 |
56 |
620 |
462 |
10 |
14 |
18 |
18 |
|
|
47.5 |
47.5 |
545.5 |
542.5 |
385 |
31 |
|
| |
|
|
SD.650.20.00.C |
648 |
434 |
56 |
620 |
462 |
10 |
14 |
φ18 |
φ18 |
583 |
505 |
46 |
46 |
545.5 |
542.5 |
400 |
31 |
|
| |
|
230.21.0575.013 |
|
647 |
435 |
56 |
620 |
462 |
10 |
14 |
18 |
18 |
|
|
45.5 |
45.5 |
545.5 |
542.5 |
330 |
31 |
|
| |
|
230.20.0600.013 |
|
748 |
534 |
56 |
720 |
562 |
12 |
16 |
18 |
18 |
|
|
45.5 |
45.5 |
645.5 |
642.5 |
390 |
36.4 |
|
| |
|
230.20.0600.503 |
|
748 |
534 |
56 |
720 |
562 |
24 |
32 |
18 |
18 |
|
|
45.5 |
45.5 |
645.5 |
642.5 |
390 |
35.8 |
|
| |
|
|
SD.750.20.00.C |
748 |
534 |
56 |
720 |
562 |
12 |
16 |
18 |
φ18 |
683 |
605 |
46 |
46 |
645.5 |
642.5 |
780 |
38 |
|
| LYDZ200644ZT |
VLU200644ZT |
|
|
748 |
534 |
56 |
720 |
562 |
12 |
16 |
φ18 |
φ18 |
685 |
602 |
47.5 |
47.5 |
645.5 |
642.5 |
780 |
38 |
|
| LYDZ200644ZT |
VLU200644ZT |
|
|
748 |
534 |
56 |
720 |
562 |
12 |
16 |
φ18 |
φ18 |
688.5 |
599.5 |
47.5 |
47.5 |
645.5 |
642.5 |
900 |
42 |
|
| LYDZ200644 |
VLU200644 |
|
|
748 |
534 |
56 |
720 |
562 |
12 |
16 |
18 |
18 |
|
|
47.5 |
47.5 |
645.5 |
642.5 |
455 |
36.5 |
|
| |
|
|
SD.750.20.00.C |
748 |
534 |
56 |
720 |
562 |
12 |
16 |
φ18 |
φ18 |
683 |
605 |
46 |
46 |
645.5 |
642.5 |
460 |
36.5 |
|
| |
|
230.21.0675.013 |
|
747 |
535 |
56 |
720 |
562 |
12 |
16 |
18 |
18 |
|
|
45.5 |
45.5 |
645.5 |
642.5 |
390 |
36.4 |
|
| |
|
|
SD.750.20.00.C |
746 |
536 |
56 |
720 |
562 |
12 |
16 |
φ18 |
φ18 |
683 |
605 |
46 |
46 |
645.5 |
642.5 |
780 |
38 |
|
| |
|
230.20.0700.013 |
|
848 |
634 |
56 |
820 |
662 |
12 |
16 |
18 |
18 |
|
|
45.5 |
45.5 |
745.5 |
742.5 |
450 |
42.8 |
|
| |
|
230.20.0700.503 |
|
848 |
634 |
56 |
820 |
662 |
24 |
32 |
18 |
18 |
|
|
45.5 |
45.5 |
745.5 |
742.5 |
450 |
42.2 |
|
| LYDZ200744ZT |
VLU200744ZT |
|
|
848 |
634 |
56 |
820 |
662 |
12 |
16 |
φ18 |
φ18 |
788.5 |
699.5 |
47.5 |
47.5 |
745.5 |
742.5 |
1050 |
45 |
|
| LYDZ200744 |
VLU200744 |
|
|
848 |
634 |
56 |
820 |
662 |
12 |
16 |
18 |
18 |
|
|
47.5 |
47.5 |
745.5 |
742.5 |
530 |
42.5 |
|
| |
|
230.21.0775.013 |
|
847 |
635 |
56 |
820 |
662 |
12 |
16 |
18 |
18 |
|
|
45.5 |
45.5 |
745.5 |
742.5 |
450 |
42.8 |
|
| |
|
230.20.0800.013 |
|
948 |
734 |
56 |
920 |
762 |
14 |
18 |
18 |
18 |
|
|
45.5 |
45.5 |
845.5 |
842.5 |
510 |
47.8 |
|
| |
|
230.20.0800.503 |
|
948 |
734 |
56 |
920 |
762 |
28 |
36 |
18 |
18 |
|
|
45.5 |
45.5 |
845.5 |
842.5 |
510 |
47.1 |
|
| |
|
|
SD.950.20.00.C |
948 |
734 |
56 |
920 |
762 |
14 |
18 |
18 |
φ18 |
883 |
805 |
46 |
46 |
845.5 |
842.5 |
1030 |
50 |
|
We do customised model slewing ring bearing:
Standard Series KD 210
250.14.0300.013, 250.14.0400.013, 250.15.0300.013,
250.15.0400.013, 250.15.0375.013, 250.15.0475.013
230.20.0400.013, 230.20.0500.013, 230.20.0600.013,
230.20.0700.013, 230.20.0800.013, , 230.20.0900.013, 230.20.1000.013
231.20.0400.013, 231.20.0500.013, 231.20.0600.013, 231.20.0700.013, 231.20.0800.013
231.20.0900.013, 231.20.1000.013
232.20.0400.013, 232.20.0500.013, 232.20.0600.013, 232.20.0700.013
232.20.0800.013, 232.20.0900.013, 232.20.1000.013
230.20.0400.503, 230.20.0500.503, 230.20.0600.503, 230.20.0700.503
230.20.0800.503, 230.20.0900.503, 230.20.1000.503
231.20.0400.503, 231.20.0500.503, 231.20.0600.503, 231.20.0700.503
231.20.0800.503, 231.20.0900.503, 231.20.1000.503
232.20.0400.503, 232.20.0500.503, 232.20.0600.503, 232.20.0700.503
232.20.0800.503, 232.20.0900.503, 232.20.1000.503
230.21.0475.013, 230.21.0575.013, 230.21.0675.013, 230.21.0775.013
230.21.0875.013, 230.21.0975.013, 230.21.1075.013
231.21.0475.013, 231.21.0575.013, 231.21.0675.013, 231.21.0775.013
231.21.0875.013, 231.21.0975.013, 231.21.1075.013
232.21.0475.013, 232.21.0575.013, 232.21.0675.013, 232.21.0775.013
232.21.0875.013, 232.21.0975.013, 232.21.1075.013
Standard Series RD 900
191.20.1250.990.41.1502, 191.20.1400.990.41.1502, 191.20.1600.990.41.1502191.20.1800.990.41.1502, 191.20.2000.990.41.1502, 192.20.1250.990.41.1502192.20.1400.990.41.1502, 192.20.1600.990.41.1502, 192.20.1800.990.41.1502192.20.2000.990.41.1502, 191.25.1800.990.41.1502, 191.25.2000.990.41.1502
191.25.2240.990.41.1502, 191.25.2500.990.41.1502, 191.25.2800.990.41.1502192.25.1800.990.41.1502, 192.25.2000.990.41.1502, 191.32.2240.990.41.1502191.32.2500.990.41.1502, 191.32.2800.990.41.1502, 191.32.3150.990.41.1502191.32.3550.990.41.1502, 191.32.4000.990.41.1502, 192.32.2240.990.41.1502
192.32.2500.990.41.1502, 192.32.2800.990.41.1502, 192.32.3150.990.41.1502192.32.3550.990.41.1502, 192.32.4000.990.41.1502, 191.40.2800.990.41.1502191.40.3150.990.41.1502, 191.40.3550.990.41.1502, 191.40.4000.990.41.1502191.40.4500.990.41.1502, 192.40.2800.990.41.1502, 192.40.3150.990.41.1502 |
Cross roller bearing, because the divided inner ring or outer ring is fixed with the cross roller collar after the rollers and spacer are installed, so as to prevent the cross roller collar from being separated from each other, it is easy to operate when installing the cross roller collar. Because the rollers are arranged crosswise, only one set of crossed roller collars can bear loads in all directions, and the rigidity is improved by 3-4 times compared with the traditional model. At the same time, because the inner ring or outer ring of the crossed roller bearing is of a split structure, the bearing clearance can be adjusted, and even if a preload is applied, high-precision rotary motion can be obtained.
The above slewing bearing can also be divided into three different types.
The size of the inner and outer rings of the crossed roller bearing is minimized, especially the ultra-thin structure is close to the limit of small size and has high rigidity, so it is most suitable for a wide range of applications such as joints or rotating parts of industrial robots, rotating tables of machining centers, rotating parts of manipulators, precision rotating tables, medical instruments, measuring instruments, IC manufacturing devices, etc. 5. High speed capability 6. Reduce the shaft length and processing cost, and thermal expansion leads to limited changes in geometric dimensions 7. Using nylon divider, the moment of inertia is low, the starting torque is low, and the angle division is easy to control 8. Optimize the pre-tightening force, with high rigidity and high running accuracy of the guide roller 9. Carburized steel provides excellent impact resistance and surface wear resistance 10. Simple but well lubricated
#1 Slewing bearing with no gear
#2 Slewing bearing with external gear
#3 Slewing bearing with internal gear
LYDZC Bearing
Four-point contact ball turntable bearing is one of the widely used parts, and almost all the bearing manufacturers and workers have dealt with it. Most colleagues think that turntable bearing is a very difficult "opponent", which is easy to crack in water quenching but not hard in oil quenching. The bearing is mainly used for assembling various mechanical equipment, and the large bearing can be used in a rotating state, and the positioning direction of the machinery can also be changed; Small bearings are basically quenched and tempered. According to requirements, bearings can also be tempered at low or medium temperature after quenching. With the development of national economy and the demand of export-oriented economy, 010.40.800 bearing can be used not only to manufacture various components in engineering, but also to manufacture low-grade optional parts, as well as slow cutting wire equipment, pig raising equipment, and also to assemble various hardware tools such as various machines, as well as various garden machinery and agricultural machinery tools. The following is a brief introduction to the production technology and surface modification of turntable bearings for reference by colleagues in the industry. I. Chemical composition, critical point of heat treatment and general process of 010.40.800 The general heat treatment process of four-point contact ball turntable bearing is as follows: 1) blank softening treatment: 740~760ºC×4~6h, furnace cooling to 600ºC at a cooling rate of 50~100ºC/h, and air cooling. 2) Normalization: heating at 850~870ºC, discharging and air cooling. 3) Quenching and tempering: quenching at 840~860ºC and tempering at 450~550ºC. 4) Quenching+tempering: heat quenching at 820~840ºC, and select appropriate coolant according to the actual situation; Tempering process depends on the required mechanical properties of the workpiece.
Strict production process
1.Drawings
According to the customers specific requirements, the field where the bearing is used and working conditions. We optimize the design of products in order that the customers could economize and get their desired pruducts
2.materials
All the materials are high-quality bearing steel with high purity. The quality is strictly inspected and checked. The high quality of the product is guaranteed from the first procedure.
3.Forging
The professional forging equipment and advanced set-forging process are used.
Steel bar is heated with the medium frequency induction and its different positions temperature is measured with the thermometer. After heating and thermal hydraulic shear, they are forged in accordance with the needs of grind and expansion. Then they are groud and expanded with CNC grinding machine so that the products could meet the technological requirements in size and geometry
4.Heat treatment annealing
All products are produced with the spheroidal annealing to ensure the product temperature uniformity good internal structure and other characteristics which is beneficial to the next step turning and quenching.
Heat treatment with quenching and tempering
The heat treatment in strict accordance with advanced process and the precious control quenching ensure that the bright quenching effect be reached
5.Rough grinding
Although it is a rough grinding process, we still strictly control the size accuracy and geometric accuracy to lay a solid foundation for the precise grinding quality
Stable tempering
We have stable tempering on the ring after the rough grinding to eliminate stress and further stabilize the size and geometric precision
Thus guarantee high-quality products
drying , oiling , greasing packaging storage and delivery
6.Precision grinding
The use of advanced CNC automatic production ensure that the geometric accuracy of the product reach P4 or P2
Flaw detection
Every single crack of the spare parts must be detected thoroughly to guarantee Zero Defect
Demagnetization
The residual magnetism of bearing parts is eliminated to relieve the harm to the bearings and get high-quality product
7.Assembling
We use automatic assembling line with online inspection of vibration noise and clearance etc and classify the quality level strictly. All these measures guarantee delivery of qualified products to customers
8.Spare parts
We choose steel ball ,cage ,dust cover , sealing ring , grease ,and other parts in line with international standards to ensure our product quality
9.Cleaning , locating cleaning
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