Self-Aligning Roller Bearing
Structure type:
spherical roller bearings are divided into: cylindrical inner hole, conical inner hole. The taper of the tapered inner hole is respectively 1:12 for the spherical roller bearing code-named K and 1:30 for the spherical roller bearing code-named K30. When this type of bearing is matched with a conical shaft, the radial clearance of the bearing can be adjusted by the axial movement of the inner ring.
Main applications:
papermaking machinery, deceleration devices, railway vehicle axles, rolling mill gearbox bearing housings, rolling mill rolls, crushers, vibrating screens, printing machinery, woodworking machinery, various industrial reducers, vertical self-aligning bearings with seats.
Company Profile
Haisai bearing is a regular model industrial manufacturing enterprise integrating bearing product research and development, design, manufacturing, import and export trade. The company was founded in 1998, covers an area of more than 90,000 square meters, plant area of more than 20,000 square meters, more than 200 employees, more than 20 technical engineers, has passed the international/SO9001:2008,1SO/TS16949:2009 and other quality management system certification. In addition, we have two factories (located in Shanghai and Liaocheng respectively) and a trading company. We have completed the high-speed forging of bearing steel dock, automatic high-precision grinding, cryoquenching, unitized automatic constant temperature grinding, intelligent assembly and so on, complete profession production. The product size from 30mm-750mm covers single and double row tapered roller bearing, British garden taper roller bearing, deep groove ball bearing, stainless steel shaft reducer special bearings, agricultural equipment bearings, a total of more than 2500 specifications of products.
We have a professional team of excellent quality, the technical center is equipped with all kinds of testing machines, high-precision testing instruments,material analysis instruments and more than 60 sets, for users to design develop, trial-produce all kinds of special purpose bearings, and do our best to provide high-end customers around the world with the best solutions and good after-sales service!
We has many years of experience in the industrial field of bearing supporting and industrial service, the products are exported to the United States, Germany, Italy, France, the Czech Republic, Russia and other European and American countries and supporting enterprises. We both at home and abroad enjoy a good business reputation!
We promise to be responsible for every set of bearings and industrial products sold! Make every customer satisfied, is our constant pursuit!
Model
| Bearing No. |
Boundary Dimensions
(mm) |
Allow migration |
Basic Load Rating
(KN) |
Limited
Speed |
Mass |
| d |
Fw |
D |
C |
r |
s |
C |
Co |
rpm |
kg |
| min |
| NA4822 |
110 |
120 |
140 |
30 |
1 |
0.8 |
74.8 |
168 |
2640 |
1.11 |
| NA4824 |
120 |
130 |
150 |
30 |
1 |
0.8 |
79.6 |
186.4 |
2480 |
1.17 |
| NA4826 |
130 |
145 |
170 |
35 |
1.1 |
1 |
94.4 |
244 |
2240 |
1.82 |
| NA4828 |
140 |
155 |
175 |
35 |
1.1 |
1 |
96.8 |
252 |
2080 |
1.6 |
| NA4830 |
150 |
165 |
190 |
40 |
1.1 |
1.5 |
121.6 |
312 |
1920 |
2.72 |
| NA4832 |
160 |
175 |
200 |
40 |
1.1 |
1.5 |
128 |
340 |
1840 |
2.9 |
| NA4834 |
170 |
185 |
215 |
45 |
1.1 |
1.5 |
148 |
396 |
1760 |
3.99 |
| NA4836 |
180 |
195 |
225 |
45 |
1.1 |
1.5 |
156 |
432 |
1680 |
4.19 |
| NA4838 |
190 |
210 |
240 |
50 |
1.5 |
1.5 |
181.6 |
544 |
1520 |
5.62 |
| NA4840 |
200 |
220 |
250 |
50 |
1.5 |
1.5 |
184.8 |
564 |
1440 |
5.84 |
| NA4844 |
220 |
210 |
270 |
50 |
1.5 |
1.5 |
196.6 |
616 |
1360 |
6.37 |
| (NA4848) |
240 |
265 |
300 |
60 |
2 |
2 |
288 |
864 |
1200 |
10 |
| (NA4852) |
260 |
285 |
320 |
60 |
2 |
2 |
300 |
928 |
1120 |
10.8 |
| (NA4856) |
280 |
305 |
350 |
69 |
2 |
2.5 |
364 |
1040 |
1040 |
15.5 |
| (NA4860) |
300 |
330 |
380 |
80 |
2.1 |
2 |
500 |
1416 |
960 |
22 |
| (NA4864) |
320 |
350 |
400 |
80 |
2.1 |
2 |
512 |
1480 |
880 |
23.2 |
| (NA4868) |
340 |
370 |
420 |
80 |
2.1 |
2 |
524 |
1552 |
880 |
24.1 |
| (NA4872) |
360 |
390 |
440 |
80 |
2.1 |
2 |
532 |
1616 |
800 |
25.7 |
| (NA4876) |
380 |
415 |
480 |
100 |
2.1 |
2 |
800 |
2272 |
760 |
44.5 |
Certificate Authentication:
Transport:
We support shipping by sea, by land, by air and by express.
It can be shipped according to the needs of customers, and it is shipped by sea by default.
FAQ:
Q:What's your after-sales service and warranty?
A: We promise to bear the following responsibilities when defective products were found:
1. Replacements would be sent with goods of your next order;
2. 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 also customize OEM box and packing as 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 order?
A: 1. Email us the model, brand and quantity,shipping way of bearings and we will quote our best price for you;
2. Proforma Invoice made and sent to you as the price agreed by both parts;
3. Deposit Payment after confirming the PI and we arrange production;
4. Balance paid before shipment or after copy of Bill of Loading.
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