Double Row Cylindrical Roller Bearing
The double-row cylindrical roller bearing is one separable type bearing and easy to assemble and disassemble. The double-row cylindrical roller bearing has two optional structures: cylindrical bore and tapered bore(suffix K), and two optional designs: NNU and NN.
Double Row Cylindrical Roller Bearing
The double-row cylindrical roller bearing is one separable type bearing and easy to assemble and disassemble. The double-row cylindrical roller bearing has two optional structures: cylindrical bore and tapered bore(suffix K), and two optional designs: NNU and NN. The NN design has an inner ring with two ribs and an outer ring without ribs. The NNU design has an inner ring without ribs and an outer ring with two ribs.
The tapered bore structure can adjust the radial clearance when the bearing is installed. The double-row cylindrical roller bearing allows axial displacement between the shaft and bearing housing and can be used as a non-locating bearing.
Product parameter
| Bearing Number | d | D | B | Static load(kN) | Dynamic load(kN) | Mass (kg) |
| NN3052K | 260 | 400 | 104 | 969 | 1810 | 47.1 |
| NN3052 | 260 | 400 | 104 | 969 | 1810 | 48.5 |
| NN3056K | 280 | 420 | 106 | 1020 | 1950 | 49.1 |
| NN3056 | 280 | 420 | 106 | 1020 | 1950 | 49.87 |
| NN3060 | 300 | 460 | 118 | 1180 | 2250 | 71.7 |
| NN3060/Y1 | 300 | 460 | 118 | 1180 | 2250 | 71.2 |
| NN3060K | 300 | 460 | 118 | 1180 | 2250 | 69.6 |
| NN3064K | 320 | 480 | 121 | 1250 | 2450 | 75 |
| NN3068K | 340 | 520 | 133 | 1560 | 3020 | 101 |
| NN3068 | 340 | 520 | 133 | 1560 | 3020 | 104 |
| NN3072K | 360 | 540 | 134 | 1630 | 3240 | 106 |
| NN3076K | 380 | 560 | 135 | 1590 | 3240 | 110 |
| NN3076 | 380 | 560 | 135 | 1590 | 3240 | 114 |
| NN3176V | 380 | 620 | 194 | 2700 | 5800 | 221 |
| NN3980K | 400 | 540 | 108 | 1240 | 2400 | 71.3 |
| NN3080K | 400 | 600 | 148 | 1980 | 3660 | 143 |
| NN3080 | 400 | 600 | 148 | 1980 | 3660 | 147 |
| NN3092K | 460 | 680 | 168 | 2470 | 5070 | 204 |
| NN39/560 | 560 | 750 | 140 | 2370 | 4860 | 188 |
| NN6/560 | 560 | 780 | 180 | 2400 | 6400 | 266 |
| NN30/560K | 560 | 820 | 195 | 2460 | 6560 | 341 |
| NN30/670 | 670 | 980 | 280 | 4620 | 9360 | 597 |
Features of Double Row Cylindrical Roller Bearing
- Compact internal structure
- Higher stiffness
- Higher load capacity ability
- low deformation after high load
- low friction force
- longer service life
- improved operation reliability
- separability and interchangeability
- high-speed running capacity
Applications of Double Row Cylindrical Roller Bearing
The advantages of the double-row cylindrical roller bearings are high stiffness and high precision, so they are usually used as main shaft bearings of precision machine tools.
Company Information
We are a professional bearing exporter in China, producing many bearings in different sizes and sizes. We can provide you with excellent service in a wide range of bearings with world-class quality, such as deep groove ball bearings, spherical roller bearings, spherical ball/roller bearings, and cylindrical roller bearings, tapered roller bearings, angular contact Ball bearings, etc. Bearings can also provide OEM services according to customer requirements. We adhere to strict global standards, which is why we can provide you with a wide range of bearings of world-class quality. We have always adhered to the principle of “integrity-based, quality first, customer foremost.” We are ready to use our sincerity to serve every global customer for long-term and win-win cooperation.
Related products
Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- 包装按customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.
Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
FAQ
Q: Are you trading company or manufacturer ?
A: Our group consists in 3 factories and 2 abroad sales corporations.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: How long is your delivery time ? What is your terms of payment ?
A: Generally it is 40-45 days. The time may vary depending on the product and the level of customization. For standard products, the payment is: 30% T/T in advance ,balance before shipment.
Q: What is the exact MOQ or price for your product ?
A: As an OEM company, we can provide and adapt our products to a wide range of needs.Thus, MOQ and price may greatly vary with size, material and further specifications; For instance, costly products or standard products will usually have a lower MOQ. Please contact us with all relevant details to get the most accurate quotation.