ZhongHong bearing Co., LTD.
| Certifiexcavatorion | ISO9001-2000 / CE / ROHS / UL / SGS |
| Payment Terms | L/C, D/A, D/P, T/T |
| Supply Ability | 300pieces per day |
| Delivery Time | 1-2 work days |
| Packaging Details | neutral package |
| model | 21304 |
| size | 20 mm * 52 * 15 mm |
| weight | 0.165 kg |
| Material | Gcr15 |
| Certifiexcavatorion: | ISO9001, ISO14001 |
| Precision Rating | ABEC-3 / ABEC-5 |
| Bearing precision | P0 P2 P4 P5 P6 |
| Vibration Level | V1,V2,V3,V4 |
| Brand Name | NTN |
| Model Number | 21304 |
| Place of Origin | CHINA |
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Product Specification
| Certifiexcavatorion | ISO9001-2000 / CE / ROHS / UL / SGS | Payment Terms | L/C, D/A, D/P, T/T |
| Supply Ability | 300pieces per day | Delivery Time | 1-2 work days |
| Packaging Details | neutral package | model | 21304 |
| size | 20 mm * 52 * 15 mm | weight | 0.165 kg |
| Material | Gcr15 | Certifiexcavatorion: | ISO9001, ISO14001 |
| Precision Rating | ABEC-3 / ABEC-5 | Bearing precision | P0 P2 P4 P5 P6 |
| Vibration Level | V1,V2,V3,V4 | Brand Name | NTN |
| Model Number | 21304 | Place of Origin | CHINA |
| High Light | split roller bearing ，spherical roller thrust bearing | ||
DIN Standard Steel Cage Roller Bearings 21304 20 mm * 52 * 15 mm
1 . Basic info
Spherical roller bearing Features
1) Spherical roller bearings are principally provided with two rows of symmetrical spherical rollers and a common sphere raceway in out ring , the two inner ring raceways are included at an angle to the bearing axia
2) The bearings have good self-aligning ability and can operate when the shaft deflection under load or the shaft deflection under load or the shaft misaligning in mounting , and their permissible aligning angle is 1 to 2.5 degree
3) This type of bearings has heavy load carrying capacity and anti-impact ability , in addition to radial loads , they also can carry axial loads in two directions
4) . In general , this type of bearings permits a low limiting speed .
2 . Other size :
| Bearing No. | Boundary dimensions | Basic load ratings(kN) | Limiting speeds | Mass | |||||
| mm | Dynamic | Static | rpm | ||||||
| d | D | B | rs min | Cr | Cor | Grease | Oil | ||
| 21308K | 40 | 90 | 23 | 1.5 | 88 | 90 | 3,200 | 4,900 | 0.694 |
| 21308KW33C3 | 40 | 90 | 23 | 1.5 | 88 | 90 | 3,200 | 4,900 | 0.694 |
| 21308W33C3 | 40 | 90 | 23 | 1.5 | 88 | 90 | 3,200 | 4,900 | 0.705 |
| 21309 | 45 | 100 | 25 | 1.5 | 102 | 106 | 2,900 | 4,400 | 0.927 |
| 21309K | 45 | 100 | 25 | 1.5 | 102 | 106 | 2,900 | 4,400 | 0.912 |
| 21309KW33C3 | 45 | 100 | 25 | 1.5 | 102 | 106 | 2,900 | 4,400 | 0.912 |
| 21309W33C3 | 45 | 100 | 25 | 1.5 | 102 | 106 | 2,900 | 4,400 | 0.927 |
| 21310 | 50 | 110 | 27 | 2 | 118 | 127 | 2,600 | 4,000 | 1.21 |
| 21310K | 50 | 110 | 27 | 2 | 118 | 127 | 2,600 | 4,000 | 1.19 |
| 21310KW33C3 | 50 | 110 | 27 | 2 | 118 | 127 | 2,600 | 4,000 | 1.19 |
| 21310W33C3 | 50 | 110 | 27 | 2 | 118 | 127 | 2,600 | 4,000 | 1.21 |
3 . FAQ
Q : Are you a trader or manufacturer ?
A : We are factory specializing in all kind of bearings . We can give you the best price and better service .
Q : What is your delivery time ?
A : Sample order: Immediate delivery , bulk order : usually 30 days .
Q : Can i request sample?
A : Of course , sample is ok and we can give you a sample
Q : What's the shipping way ?
A : According to YOUR demands .
Q : Can you accept OEM or ODM ?
A : Yes , of course . logo is also acceptable .
Q : How is quality controlled ?
A : Quality is the key !
4 . Our advantage
1 . Direct China factory / Manufacturer with strong Capability
We are direct bearing factory on shandong , China for more than 10 years . 300 bearing types , 5 million sets items and produced yearly and the output value more than 5 million US dollars last year .
2 . Product quality high quality the delivery time is quick , reasonable price
Rich in stock throughout the year for general bearing types , such as self-aligning ball bearing ,Tapered Roller Bearing,cylindrical roller Bearing , etc .
Based on the above advantages , we can make prompt delivery according to your requirement .
Warehouse items would Delivery of the goods within 5 - 8 days . By courier/air or by cargo/sea
3 . Competitive price
Large inventories and strong production capabilities enable us to offer more affordable prices globally .
Customers can get high - quality bearings with attractive prices at the same time .
5 . Appliexcavatorion :
The self-aligning ball bearings are widely used in mining machinery , power machinery , heavy machinery and textile machinery etc .
Company Details
Business Type:
Manufacturer,Importer,Exporter,Seller
Year Established:
2004
Total Annual:
10000000-50000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Linqing Zhonghong Bearing Co., LTD office is in Guangzhou city and factory in Shandong province. It is a company integrating bearing R & D, production and sales, with many years of experience in bearing support and industrial service in the industrial field. We specialize in both internationa... Linqing Zhonghong Bearing Co., LTD office is in Guangzhou city and factory in Shandong province. It is a company integrating bearing R & D, production and sales, with many years of experience in bearing support and industrial service in the industrial field. We specialize in both internationa...
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