Ningbo Kent Bearing Co., Ltd
Ningbo Kent Bearing Co., Ltd
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High Precision Ball Bearing For Pumps
The High Precision P4 Bearing is a top-tier deep groove ball bearing designed for applications requiring exceptional accuracy, low noise, and reliable performance. With a P4 precision grade, this bearing ensures ultra-smooth operation, minimal vibration, and high rotational accuracy, making it ideal for pumps and other precision machinery. The C3 clearance provides optimal internal clearance for reduced friction and efficient performance, even under high-speed or high-temperature conditions. Customized for pump applications, this bearing is engineered to deliver long-lasting durability and low maintenance, ensuring reliable operation in demanding environments.
P4 Precision Grade: Ensures ultra-smooth operation, low noise, and minimal vibration.
C3 Clearance: Provides optimal internal clearance for reduced friction and efficient performance.
Low Noise Design: Engineered for quiet operation, ideal for noise-sensitive applications.
High-Speed Capability: Designed for efficient operation at high rotational speeds.
Durable Construction: Made from high-quality chrome steel for excellent wear resistance.
Low Maintenance: Requires minimal relubrication, reducing downtime and costs.
Customized for Pumps: Tailored to meet the specific demands of pump applications.
Ultra-High Precision: P4 precision ensures minimal vibration and noise, making it ideal for precision pump systems.
Optimized Clearance: C3 clearance allows for thermal expansion and reduces friction, enhancing performance in high-speed or high-temperature environments.
Low Noise Operation: Designed for quiet performance, critical for noise-sensitive applications.
High-Speed Performance: Capable of handling high rotational speeds efficiently.
Durability: High-quality materials and construction provide excellent resistance to wear and tear.
Customization: Tailored to meet the specific requirements of pump systems, ensuring optimal performance.
Water Pumps: Ensures reliable and efficient operation in water pumps for residential, industrial, and agricultural use.
Centrifugal Pumps: Suitable for high-speed centrifugal pumps requiring precision and durability.
Hydraulic Pumps: Used in hydraulic systems for smooth and reliable performance.
Industrial Pumps: Ideal for pumps in chemical, oil, and gas industries where precision and reliability are critical.
Cooling Systems: Used in cooling pumps for HVAC systems and engines.
Technical Parameters:
| Basic | Bore d | Outer Diameter D | Width W | Radius r | Basic Load | Maximum Run | Weight | ||||||
| Dynamic | Static | Grease | Oil | ||||||||||
| mm | inch | mm | inch | mm | inch | mm | inch | C | CO | r/min | r/min | ||
| 604 | 4 | 0.1575 | 12 | 0.4724 | 4 | 0.1575 | 0.2 | 0.008 | 0.97 | 0.36 | 43000 | 51000 | 0.002 |
| 605 | 5 | 0.1969 | 14 | 0.5512 | 5 | 0.1969 | 0.2 | 0.008 | 1.33 | 0.505 | 39000 | 46000 | 0.0035 |
| 606 | 6 | 0.2362 | 17 | 0.6693 | 6 | 0.2362 | 0.3 | 0.012 | 2.24 | 0.91 | 28000 | 36000 | 0.008 |
| 607 | 7 | 0.2756 | 19 | 0.7480 | 6 | 0.2362 | 0.3 | 0.012 | 2.24 | 0.91 | 28000 | 36000 | 0.008 |
| 608 | 8 | 0.3149 | 22 | 0.8661 | 7 | 0.2756 | 0.3 | 0.012 | 3.35 | 1.4 | 26000 | 34000 | 0.012 |
| 609 | 9 | 0.3543 | 24 | 0.9449 | 7 | 0.2756 | 0.3 | 0.012 | 3.4 | 1.45 | 22000 | 30000 | 0.014 |
| 6000 | 10 | 0.3937 | 26 | 1.0236 | 8 | 0.3150 | 0.3 | 0.012 | 4.55 | 1.96 | 20000 | 28000 | 0.019 |
| 6001 | 12 | 0.4724 | 28 | 1.1024 | 8 | 0.3150 | 0.3 | 0.012 | 5.1 | 2.39 | 19000 | 26000 | 0.021 |
| 6002 | 15 | 0.5906 | 32 | 1.2598 | 9 | 0.3543 | 0.3 | 0.012 | 5.6 | 2.84 | 18000 | 24000 | 0.03 |
| 6003 | 17 | 0.6693 | 35 | 1.3780 | 10 | 0.3937 | 0.3 | 0.012 | 6.8 | 3.35 | 17000 | 22000 | 0.039 |
| 6004 | 20 | 0.7874 | 42 | 1.6535 | 12 | 0.4724 | 0.6 | 0.024 | 9.4 | 5.05 | 15000 | 19000 | 0.069 |
| 6005 | 25 | 0.9843 | 47 | 1.8504 | 12 | 0.4724 | 0.6 | 0.024 | 10.1 | 5.85 | 13000 | 17000 | 0.08 |
| 6006 | 30 | 1.1811 | 55 | 2.1654 | 13 | 0.5118 | 1.0 | 0.039 | 13.2 | 8.3 | 12000 | 15000 | 0.116 |
| 6007 | 35 | 1.3780 | 62 | 2.4409 | 14 | 0.5512 | 1.0 | 0.039 | 16 | 10.3 | 10000 | 13000 | 0.155 |
| 6008 | 40 | 1.5748 | 68 | 2.6772 | 15 | 0.5906 | 1.0 | 0.039 | 16.8 | 11.5 | 8000 | 11000 | 0.185 |
| 6009 | 45 | 1.7717 | 75 | 2.9528 | 16 | 0.6299 | 1.0 | 0.039 | 21 | 15.1 | 7200 | 9000 | 0.231 |
| 6010 | 50 | 1.9685 | 80 | 3.1496 | 16 | 0.6299 | 1.0 | 0.039 | 21.8 | 16.6 | 6400 | 7800 | 0.25 |
| 6011 | 55 | 2.1654 | 90 | 3.5433 | 18 | 0.7087 | 1.1 | 0.043 | 28.3 | 21.2 | 5700 | 7000 | 0.362 |
| 6012 | 60 | 2.3622 | 95 | 3.7402 | 18 | 0.7087 | 1.1 | 0.043 | 29.5 | 23.2 | 5000 | 6300 | 0.385 |
| 6013 | 65 | 2.9551 | 100 | 3.9370 | 18 | 0.7087 | 1.1 | 0.043 | 31.9 | 25 | 4800 | 6100 | 0.44 |
| 6014 | 70 | 2.7559 | 110 | 4.3307 | 20 | 0.7874 | 1.1 | 0.043 | 39.7 | 31 | 4600 | 5800 | 0.6 |
| 6015 | 75 | 2.9528 | 115 | 4.5276 | 20 | 0.7874 | 1.1 | 0.043 | 41.6 | 33.5 | 4400 | 5600 | 0.64 |
| Basic Bearing | Bore d | Outer Diameter D | Width W | Radius r | Basic Load Rating KN | Maximum Run out Speed | Weight | ||||||
| mm | inch | mm | inch | mm | inch | mm | inch | Dynamic | Static | Grease | Oil | ||
| C | CO | r/min | r/min | ||||||||||
| 627 | 7 | 0.2756 | 22 | 0.8661 | 7 | 0.2756 | 0.3 | 0.012 | 3.35 | 1.4 | 26000 | 34000 | 0.013 |
| 628 | 8 | 0.3149 | 24 | 0.9448 | 8 | 0.3149 | 0.3 | 0.012 | 4 | 1.59 | 24000 | 32000 | 0.017 |
| 629 | 9 | 0.3543 | 26 | 1.0236 | 8 | 0.3149 | 0.3 | 0.012 | 4.55 | 1.96 | 22000 | 30000 | 0.02 |
| 6200 | 10 | 0.3937 | 30 | 1.1811 | 9 | 0.3543 | 0.6 | 0.024 | 5.1 | 2.39 | 19000 | 26000 | 0.032 |
| 6201 | 12 | 0.4724 | 32 | 1.2598 | 10 | 0.3937 | 0.6 | 0.024 | 6.1 | 2.75 | 18000 | 24000 | 0.037 |
| 6202 | 15 | 0.5906 | 35 | 1.3780 | 11 | 0.4331 | 0.6 | 0.024 | 7.75 | 3.6 | 17000 | 22000 | 0.045 |
| 6203 | 17 | 0.6693 | 40 | 1.5748 | 12 | 0.4724 | 0.6 | 0.024 | 9.6 | 4.6 | 16000 | 20000 | 0.066 |
| 6204 | 20 | 0.7874 | 47 | 1.8504 | 14 | 0.5512 | 1.0 | 0.039 | 12.8 | 6.65 | 14000 | 18000 | 0.106 |
| 6205 | 25 | 0.9843 | 52 | 2.0470 | 15 | 0.5906 | 1.0 | 0.039 | 14 | 7.85 | 12000 | 16000 | 0.128 |
| 6206 | 30 | 1.1811 | 62 | 2.4409 | 16 | 0.6299 | 1.0 | 0.039 | 19.5 | 11.3 | 10000 | 13000 | 0.199 |
| 6207 | 35 | 1.3780 | 72 | 2.8346 | 17 | 0.6693 | 1.1 | 0.043 | 25.7 | 15.3 | 8800 | 10000 | 0.287 |
| 6208 | 40 | 1.5748 | 80 | 3.1496 | 18 | 0.7087 | 1.1 | 0.043 | 29.1 | 17.8 | 7700 | 9200 | 0.367 |
| 6209 | 45 | 1.7717 | 85 | 3.3465 | 19 | 0.7480 | 1.1 | 0.043 | 32.5 | 20.4 | 6800 | 8200 | 0.416 |
| 6210 | 50 | 1.9685 | 90 | 3.5433 | 20 | 0.7874 | 1.1 | 0.043 | 35 | 23.2 | 6100 | 7300 | 0.462 |
| 6211 | 55 | 2.1654 | 100 | 3.9370 | 21 | 0.8268 | 1.5 | 0.059 | 43.5 | 29.2 | 5500 | 6600 | 0.602 |
| 6212 | 60 | 2.3622 | 110 | 4.3307 | 22 | 0.8661 | 1.5 | 0.059 | 52.5 | 36 | 5000 | 6000 | 0.789 |
| 6213 | 65 | 2.5591 | 120 | 4.7244 | 23 | 0.9055 | 1.5 | 0.059 | 58.5 | 40.5 | 4800 | 5800 | 0.99 |
| 6214 | 70 | 2.7559 | 125 | 4.9213 | 24 | 0.9449 | 1.5 | 0.059 | 63.7 | 45 | 4600 | 5600 | 1.1 |
| 6215 | 75 | 2.9528 | 130 | 5.1181 | 25 | 0.9843 | 1.5 | 0.059 | 68.9 | 49 | 4400 | 5400 | 1.2 |
ABEC-5 TOLERANCE CLASS ABEC-5 (P5)
| INNER RING | Tolerance in um/s | |||||||||||
| d mm | Δdmp | Vdp²)Diameter Series | Vdmp | Kia | Sd | Sis3) | ΔBs | Vbs | ||||
| 9 | 0,1,2,3,4 | |||||||||||
| over | including | high | low | max | 3 | max | max | max | High | Low | max | |
| 1)0.6 | 2.5 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -40 | 5 |
| 2.5 | 10 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -40 | 5 |
| 10 | 18 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -80 | 5 |
| 18 | 30 | 0 | -6 | 6 | 5 | 3 | 4 | 8 | 8 | 0 | -120 | 5 |
| 30 | 50 | 0 | -8 | 8 | 6 | 4 | 5 | 8 | 8 | 0 | -120 | 5 |
| 50 | 80 | 0 | -9 | 9 | 7 | 5 | 5 | 8 | 8 | 0 | -150 | 6 |
| OUTER RING | Tolerance in um/s | |||||||||||
| D mm | Δdmp | Vdp²)Diameter Series | Vdmp | Kia | SD4) SD15) | Sea4)5) | ΔBs | Vbs | ||||
| 9 | 0,1,2,3,4 | |||||||||||
| over | including | high | low | max | max | max | max | High | Low | max | ||
| 1)2.5 | 6 | 0 | -5 | 5 | 4 | 3 | 5 | 8 | 8 | 5 | ||
| 6 | 18 | 0 | -5 | 5 | 4 | 3 | 5 | 8 | 8 | 5 | ||
| 18 | 30 | 0 | -6 | 6 | 5 | 3 | 6 | 8 | 8 | 5 | ||
| 30 | 50 | 0 | -7 | 7 | 5 | 4 | 7 | 8 | 8 | 5 | ||
| 50 | 80 | 0 | -9 | 9 | 7 | 5 | 8 | 8 | 10 | 6 | ||
| 80 | 120 | 0 | -10 | 10 | 8 | 5 | 10 | 9 | 11 | 8 | ||
| 120 | 150 | 0 | -11 | 11 | 8 | 6 | 11 | 10 | 13 | 8 | ||
ABEC-7 TOLERANCE CLASS ABEC-7 (P4)
| INNER RING | Tolerance in um/s | ||||||||||||||
| d mm | Δdmp | Δds | Vdp²)Diameter Series | Vdmp | Kia | Sd | Sia | ΔBs | Vbs | ||||||
| 7,8,9 | 1,7,2,3,4 | ||||||||||||||
| over | including | high | low | high | low | max | max | max | max | max | High | low | Low | max | |
| 1)0.6 | 2.5 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -40 | -40 | 2.5 |
| 2.5 | 10 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -40 | -40 | 2.5 |
| 10 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -80 | -80 | 2.5 |
| 18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 2.5 | 3 | 4 | 4 | 0 | -120 | -120 | 2.5 |
| 30 | 50 | 0 | -6 | 0 | -5 | 6 | 4 | 3 | 4 | 4 | 4 | 0 | -120 | -120 | 3 |
| 50 | 80 | 0 | -7 | 0 | -5 | 7 | 5 | 3.5 | 4 | 5 | 5 | 0 | -150 | -150 | 4 |
| OUTER RING | Tolerance in um/s | ||||||||||||||
| D mm | Δdmp | Δds | Vdp²)Diameter Series | Vdmp | Kia | Sd | Sia | ΔBs | Vbs | ||||||
| 7,8,9 | 1,7,2,3,4 | ||||||||||||||
| over | including | high | low | high | low | max | max | max | max | max | High | low | max | ||
| 1)2.5 | 6 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 3 | 4 | 5 | Identical to ΔBs and VBs of inner ring of same bearing | 2.5 | ||
| 6 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 3 | 4 | 5 | 2.5 | |||
| 18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 2.5 | 4 | 4 | 5 | 2.5 | |||
| 30 | 50 | 0 | -6 | 0 | -6 | 6 | 5 | 3 | 5 | 4 | 5 | 2.5 | |||
| 50 | 80 | 0 | -7 | 0 | -7 | 7 | 5 | 3.5 | 5 | 4 | 5 | 3 | |||
| 80 | 120 | 0 | -8 | 0 | -8 | 8 | 6 | 4 | 6 | 5 | 6 | 4 | |||
| 120 | 150 | 0 | -9 | 0 | -9 | 9 | 7 | 5 | 7 | 5 | 7 | 5 | |||
Customization welcomed:
We can printing your brand (logo,artwork)on the shield or laser engraving your brand on the shield.
We can custom your packaging according to your design.
All copyright owned by clients and we promised don't disclose any information.
Packing and Shipping:
The deep groove ball bearings will be securely packaged individually, or tube packing or packed as customization packing
Shipping method is negotiable.
FAQ:
1.Q:Are you a factory or trading company?
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 free samples?
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?
A: Please inform us detailed information about your market,we will discuss
and propose helpful suggestion for you and to find the best solution for you.