Adavantages of 68 series thin-wall ball bearings
1) High rotating speed & Low noise: Suitable for high rotating speed operation, while reducing the noise during operation.
2) Low Friction: The 68 series thin wall bearings have less friction during operation, which can improve the efficiency and accuracy of the equipment.
3) High temperature resistance: Bearing can work stably in high temperature environment
4) Long Service life: Due to the use of low friction and high strength materials, the 68 series thin-wall bearings have a long service life
Basic | Bore d | Outer Diameter D | Width W | Radius r | Basic Load Rating KN | Maximum Run out Speed | Weight | ||||||
Dynamic | Static | Grease | Oil | ||||||||||
mm | inch | mm | inch | mm | inch | mm | inch | C | CO | r/min | r/min | ||
685 | 5 | 0.1969 | 11 | 0.4331 | 3 | 0.1181 | 0.1 | 0.006 | 0.715 | 0.282 | 35000 | 45000 | 0.0011 |
686 | 6 | 0.2362 | 13 | 0.5118 | 3.5 | 0.1378 | 0.15 | 0.006 | 1.08 | 0.44 | 33000 | 42000 | 0.0019 |
687 | 7 | 0.2756 | 14 | 0.5512 | 3.5 | 0.1378 | 0.15 | 0.006 | 1.17 | 0.51 | 31000 | 40000 | 0.0021 |
688 | 8 | 0.3150 | 16 | 0.6299 | 4 | 0.1575 | 0.2 | 0.008 | 1.26 | 0.585 | 29000 | 38000 | 0.0031 |
689 | 9 | 0.3543 | 17 | 0.6693 | 4 | 0.1575 | 0.2 | 0.008 | 1.72 | 0.82 | 28000 | 36000 | 0.0032 |
6800 | 10 | 0.3937 | 19 | 0.7480 | 5 | 0.1969 | 0.3 | 0.012 | 1.83 | 0.925 | 26000 | 34000 | 0.005 |
6800W7 | 10 | 0.3937 | 19 | 0.7480 | 7 | 0.2756 | 0.3 | 0.012 | 1.83 | 0.925 | 26000 | 34000 | 0.006 |
6801 | 12 | 0.4724 | 21 | 0.8268 | 5 | 0.1969 | 0.3 | 0.012 | 1.92 | 1.04 | 22000 | 30000 | 0.006 |
6802 | 15 | 0.5906 | 24 | 0.9449 | 5 | 0.1969 | 0.3 | 0.012 | 2.08 | 1.26 | 20000 | 28000 | 0.007 |
6803 | 17 | 0.6693 | 26 | 1.0236 | 5 | 0.1969 | 0.3 | 0.012 | 2.81 | 1.72 | 19000 | 26000 | 0.008 |
6804 | 20 | 0.7874 | 32 | 1.2598 | 7 | 0.2756 | 0.3 | 0.012 | 4 | 2.47 | 17000 | 22000 | 0.019 |
6805 | 25 | 0.9843 | 37 | 1.4567 | 7 | 0.2756 | 0.3 | 0.012 | 4.3 | 2.95 | 15000 | 19000 | 0.022 |
6806 | 30 | 1.1811 | 42 | 1.6535 | 7 | 0.2756 | 0.3 | 0.012 | 4.7 | 3.65 | 13000 | 17000 | 0.026 |
6807 | 35 | 1.3780 | 47 | 1.8504 | 7 | 0.2756 | 0.3 | 0.012 | 4.9 | 4.05 | 11000 | 15000 | 0.029 |
6808 | 40 | 1.5748 | 52 | 2.0472 | 7 | 0.2756 | 0.3 | 0.012 | 5.1 | 4.4 | 9000 | 13000 | 0.033 |
6809 | 45 | 1.7717 | 58 | 2.2835 | 7 | 0.2756 | 0.3 | 0.012 | 6.4 | 5.65 | 7000 | 11000 | 0.04 |
6810 | 50 | 1.9685 | 65 | 2.5591 | 7 | 0.2756 | 0.3 | 0.012 | 6.6 | 6.1 | 5000 | 9000 | 0.052 |




Cixi Kent Bearing Co.,Ltd was established in 2003, which is one of the leading bearing manufacturers and exporters in China.
Kent specializes in the design and production of high precision, high speed and low noise groove ball bearings and pillow block bearings. At present, we have more than 1,000 employees, a fixed assets of 2 billion yuan, and produces 250 million sets of
bearings annually. The Corporation's products are widely used in more than 50 countries and regions under 2 independent brands, namely "BUGAO" and "NBKT".In addition, we participate in major professional exhibitions at home and abroad every year.
▄ The company has more than 20 assembly lines, and through ISO9001:2015 quality management system certification, has a professional technical and service team, technical personnel proportion of more than 30%.
▄ We take customer satisfaction and product quality as the first priority for us, we supply reliable warranties and good after-sales services.

China international bearing exhibition in Shanghai, 2018

A:Kent Bearing is specialized in manufacturing and exporting bearings,
and we have our own factory and warehouse.
2.Q:Can I get some samples and do you offer the sample free?
A:Yes, sure, Kent Bearing are honored to offer you samples.
3.Q: How about the shipping?
A: We can arrange the shipment or you may have the forwarder.
4.Q: Could you tell me the material of our bearing?
A: We have chrome steel, and stainless steel, ceramic and plastic material
5.Q: Can we get support if we have our own market position?
and propose helpful suggestion for you and to find the best solution for you.