Combination Needle Roller Bearings
Combined needle roller bearing is a bearing unit composed of radial needle roller bearing and thrust bearing components. It has the advantages of compact structure, various forms, wide adaptability, small size, easy installation and high rotation accuracy. It can bear a certain axial load while bearing a high load. Composite needle roller bearings are widely used in machine tools, metallurgical machinery, textile machinery and printing machinery and other mechanical equipment, and can make the mechanical system design more compact and dexterous.
Combined needle roller bearings, a special type of bearing, can be added between the inner and outer rings of the needle roller components to achieve balance accuracy, reduce vibration and noise effects. The design and manufacture of such bearings requires precise calculations and highly specialized skills.
New domestic models | Old domestic model | Inner diameter (mm) | Outer diameter (mm) | Width(mm) | Cr(kN) | Cor(kN) | Grease lubrication speed (r/min) | Oil lubrication speed (r/min) | Weight (kg) |
NAV4003 | 4074103 | 17 | 35 | 18 | – | – | – | – | 0.098 |
NAV4004 | 4074104 | 20 | 42 | 22 | – | – | – | – | 0.175 |
RNAV4016 | 4084116 | 100.3 | 125 | 45 | – | – | – | – | 0 |
RNAV4015 | 4084115 | 92.7 | 115 | 40 | – | – | – | – | 1.025 |
RNAV4014 | 4084114 | 88 | 110 | 40 | – | – | – | – | 0.982 |
RNAV4013 | 4084113 | 80.3 | 100 | 35 | – | – | – | – | 0.692 |
RNAV4012 | 4084112 | 74.6 | 95 | 35 | – | – | – | – | 1.025 |
RNAV4011 | 4084111 | 69.8 | 90 | 35 | – | – | – | – | 0.645 |
RNAV4010 | 4084110 | 62.1 | 80 | 30 | – | – | – | – | 0.426 |
RNAV4009 | 4084109 | 57.4 | 75 | 30 | – | – | – | – | 0.39 |
RNAV4008 | 4084108 | 51.6 | 68 | 28 | – | – | – | – | 0.304 |
RNAV4007 | 4084107 | 45.9 | 62 | 27 | – | – | – | – | 0.259 |
RNAV4006 | 4084106 | 40.1 | 55 | 25 | – | – | – | – | 0.193 |
RNAV4005 | 4084105 | 33.5 | 47 | 22 | – | – | – | – | 0.129 |
RNAV4920 | 4084920E | 115 | 140 | 40 | – | – | – | – | 0 |
RNAV4919 | 4084919E | 110 | 130 | 35 | – | – | – | – | 0 |
RNAV4918 | 4084918E | 105 | 125 | 35 | – | – | – | – | 0 |
RNAV4916 | 4084916E | 90 | 110 | 30 | – | – | – | – | 0 |
RNAV4914 | 4084914E | 80 | 100 | 30 | – | – | – | – | 0 |
RNAV4912 | 4084912E | 68 | 85 | 25 | – | – | – | – | 0 |
RNAV4910 | 4084910E | 58 | 72 | 22 | – | – | – | – | 0 |
RNAV4909 | 4084909E | 52 | 68 | 22 | – | – | – | – | 0 |
RNAV4908 | 4084908E | 48 | 62 | 22 | – | – | – | – | 0 |
RNAV4907 | 4084907E | 42 | 55 | 20 | – | – | – | – | 0 |
RNAV4906 | 4084906E | 35 | 47 | 17 | – | – | – | – | 0 |
RNAV4905 | 4084905E | 30 | 42 | 17 | – | – | – | – | 0 |
RNAV4904 | 4084904E | 25 | 37 | 17 | – | – | – | – | 0 |
RNAV4903 | 4084903E | 22 | 30 | 13 | – | – | – | – | 0 |
RNAV4902 | 4084902E | 20 | 28 | 13 | – | – | – | – | 0 |
NA6901 | 6544901 | 12 | 24 | 22 | 16.3 | 21.7 | 27000 | – | 0.045 |
NA6902 | 65449O2 | 15 | 28 | 23 | 18.4 | 27.1 | 22000 | – | 0.062 |
NA6903 | 6544903 | 17 | 30 | 23 | 18.9 | 29 | 20000 | – | 0.067 |
NA6904 | 65449O4 | 20 | 37 | 30 | 35.4 | 48.9 | 17000 | – | 0.137 |
NA6905 | 6544905 | 25 | 42 | 30 | 40.1 | 60.7 | 15000 | – | 0.162 |
NA6906 | 6544906 | 30 | 47 | 30 | 42.7 | 69 | 13000 | – | 0.186 |
NA6907 | 6254907 | 35 | 55 | 36 | 51.4 | 85.1 | 11000 | – | 0.297 |
NA6908 | 6254908 | 40 | 62 | 40 | 66.7 | 115 | 9400 | – | 0.415 |
NA6909 | 6254909 | 45 | 68 | 40 | 70.7 | 127 | 8800 | – | 0.496 |
RNA6901 | 6644901 | 12 | 24 | 22 | 16.3 | 21.7 | 27000 | – | 0.03 |
RNA6902 | 6644902 | 15 | 28 | 23 | 18.4 | 27.1 | 22000 | – | 0.038 |
RNA6903 | 6644903 | 17 | 30 | 23 | 18.9 | 29 | 20000 | – | 0.04 |
RNA6904 | 6644904 | 20 | 37 | 30 | 35.4 | 48.9 | 17000 | – | 0.096 |
1. Strong bearing capacity: The combined needle roller bearing is composed of an inner ring, an outer ring and a needle roller, and its unique structure makes its bearing capacity stronger than the general bearing, which can adapt to high load and high-speed rotation occasions.2. Wear resistance: The combined needle roller bearing is made of high-quality materials with good wear resistance and can maintain stable performance even during long operation.
3. High precision: The design and manufacturing process of the combined needle roller bearing is strict, which makes its precision high, and can ensure high quality rotation accuracy and stability.
4. Easy installation: The compact structure of the combined needle roller bearing is easy to install and disassemble, and can be replaced quickly, reducing downtime and maintenance costs.
5. Wide range of application: combined needle roller bearings can be applied to a variety of different applications, including mechanical, electrical, chemical and other industries, to meet different needs.
Shipping port: Qingdao/Tianjin
Supply Ability: 100,000 pieces per month
Package：
Plastic bag + single box + carton + plywood pallet
Neutral industrial packaging + neutral carton packaging + pallet
According to customer requirements
SKF,FAG,NSK,KBC,NTN and other brands of bearings and special bearings customized according to customers’ needs have been produced, boxed in our warehouse and waiting to be packed and delivered to you. Please send us the types of cylindrical roller bearing you need, we will give you the best cylindrical roller bearing price
Needle roller bearings are widely used in various scenarios in the industrial field, mainly including the following aspects:
1. Machine tool: Needle roller bearings are suitable for high-speed, high-precision, high-rigidity and high-load machine tool spindle, countershaft, etc.
2. Construction machinery: needle roller bearings are suitable for all kinds of large construction machinery and equipment, such as excavators, bulldozers, scrapers, etc.
3. Automobile: Needle roller bearings are suitable for automobile engine, transmission, differential, drive shaft, steering knuckle, etc.
4. Wind power generation: Needle roller bearings are suitable for the spindle and transmission of wind turbines.
5. Others: Needle roller bearings are also suitable for steel, aviation, metallurgy, mining and many other fields.
1. Our company has been engaged in bearing business for many years. We have international experience, professional, can provide customers with a variety of high-quality bearing products. Quality + Quality + quality + quality service = customer trust.
2. Established cooperative relations with more than 50 countries and regions such as the United States, the Middle East, Southeast Asia, Brazil and Africa.
3. Can provide OEM/ODM services.
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