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Series 30-Double Row Angular Contact Ball bearings OEM/ODM

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Series 30-Double Row Angular Contact Ball bearings

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  • With dust cover
  • With sealing ring
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  • Design Variants
  • Cage
  • Tolerance
  • Internal clearance
Model
 Dimensions Rated load C5(um) Extreme speed Weight
d
D
B
 r1,r2 Min r3,r4 Min Dynamic load Cr Static load Cor Grease lubrication Oil lubrication
3005B
25
47
16
 0.6 21.2 15.2 11.0 9500 12000 0.100
3005B.2RSR
25
47
16
 0.6 21.2 15.2 11.0 9500 -- 0.100
3005B.2Z
25
47
16
 0.6 21.2 15.2 11.0 9500 -- 0.100
3006B
30
55
19
 1 24.8 20.3 15.5 8000 10000 0.160
3006B.2RSR
30
55
19
 1 24.8 20.3 15.5 8000 -- 0.160
3006B.2Z
30
55
19
 1 24.8 20.3 15.5 8000 -- 0.160
3007B
35
62
20
 1 27.8 24.2 20.4 6500 8500 0.240
3007B.2RSR
35
62
20
 1 27.8 24.2 20.4 6500 -- 0.240
3007B.2Z
35
62
20
 1 27.8 24.2 20.4 6500 -- 0.240
3008B
40
68
21
 1 30.8 24.5 20.8 6000 7800 0.279
3008B.2RSR
40
68
21
 1 30.8 24.5 20.8 6000 -- 0.279
3008B.2Z
40
68
21
 1 30.8 24.5 20.8 6000 -- 0.279
3009B
45
75
23
 1 -- 39.3 36.4 5600 6200 0.364
3009B.2RSR
45
75
23
 1 -- 39.3 36.4 5600 -- 0.364
3009B.2Z
45
75
23
 1 -- 39.3 36.4 5600 -- 0.364
3010B
50
80
23
 1 -- 42.3 41.9 5300 6600 0.395
3011B
55
90
26
 1 -- 43.7 44.7 4800 5800 0.581
3011B.2RSR
55
90
26
 1 -- 43.7 44.7 4800 -- 0.581
3011B.2Z
55
90
26
 1 -- 43.7 44.7 4800 -- 0.581
3012B
60
95
26
 1.1 -- 47.2 53.4 4400 5000 0.621
3012B.2RSR
60
95
26
 1.1 -- 47.2 53.4 4400 -- 0.621
3012B.2Z
60
95
26
 1.1 -- 47.2 53.4 4400 -- 0.621
3013B
65
100
26
 1.1 -- 49.5 59.2 4000 4800 0.661
3013B.2RSR
65
100
26
 1.1 -- 49.5 59.2 4000 -- 0.661
3013B.2Z
65
100
26
 1.1 -- 49.5 59.2 4000 -- 0.661
3014B
70
110
30
 1.1 -- 54.2 58.9 3600 4400 0.950
3014B.2RSR
70
110
30
 1.1 -- 54.2 58.9 3600 -- 0.950
3014B.2Z
70
110
30
 1.1 -- 54.2 58.9 3600 -- 0.950
3015B
75
115
30
 1.1 -- 57.7 66.5 3400 4000 1.003
3015B.2RSR
75
115
30
 1.1 -- 57.7 66.5 3400 -- 1.003
3015B.2Z
75
115
30
 1.1 -- 57.7 66.5 3400 -- 1.003
3016B
80
125
34
 1.1 -- 63.5 67.8 3100 3800 1.380
3016B.2RSR
80
125
34
 1.1 -- 63.5 67.8 3100 -- 1.380
3016B.2Z
80
125
34
 1.1 -- 63.5 67.8 3100 -- 1.380
3017B
85
130
34
 1.1 -- 68.3 77.5 2900 3600 1.447
3017B.2RSR
85
130
34
 1.1 -- 68.3 77.5 2900 -- 1.447
3017B.2Z
85
130
34
 1.1 -- 68.3 77.5 2900 -- 1.447
3018B
90
140
37
 1.5 -- 69.8 77.3 2700 3300 1.872
3018B.2RSR
90
140
37
 1.5 -- 69.8 77.3 2700 -- 1.872
3018B.2Z
90
140
37
 1.5 -- 69.8 77.3 2700 -- 1.872
3019B
95
145
37
 1.5 -- 72.4 82.9 2600 3100 1.954
3019B.2RSR
95
145
37
 1.5 -- 72.4 82.9 2600 -- 1.954
3019B.2Z
95
145
37
 1.5 -- 72.4 82.9 2600 -- 1.954
3020B
100
150
37
 1.5 -- 74.7 88.2 2500 -- 2.040
3020B.2RSR
100
150
37
 1.5 -- 74.7 88.2 2500 2800 2.040
3020B.2Z
100
150
37
 1.5 -- 74.7 88.2 2500 -- 2.040

Ningbo DHK Precision Bearing Co., Ltd.

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    Patented Technology

Ningbo DHK Precision Bearing Co., Ltd. (“DHK” for short) is a specialist enterprise engaged in the R&D, manufacture and sales of bearings. Is a famous China Series 30-Double Row Angular Contact Ball bearings Factory and OEM/ODM Series 30-Double Row Angular Contact Ball bearings Company. And is located in Ningbo Zhenhai Economic Development Zone with convenient transportation. Since the establishment for over a decade, "technology", "quality" and "service" have always been the initial issues in our mind for the sake of development. We provide reliable products and special customized services for global enterprises in heavy industry and have got the Satisfaction and won good reputation of a number of enterprises at home and abroad.

DHK mainly produces cylindrical roller bearings, conical roller bearings, self-aligning roller bearings, ball bearings, as well as various kinds of non-standard bearings and bearings with specially treated surface. So far, DHK’s bearings have been widely applied in such fields as engineering machinery, industrial pump, machine tool, compression engine, gear case, wind power and metallurgy in developed European and American countries.

DHK has the measuring room and inspection room of bearings in the industry and has introduced top-end inspection equipment worldwide and established the QC system in China,thus guaranteeing product quality in an all-round way.

Ningbo DHK Precision Bearing Co., Ltd.

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CERTIFICATE

DHK has passed IATF16949 quality system certification and ISO14001 environmental management system certification；and DHK is a national high-tech enterprise.

  • Certificate
  • Environmental Managementsystem Certificate
  • Occupational Health And Safetymanagement System Certificate
  • Measurement Management System
  • Invention patent1
  • Invention patent2
  • Invention patent3
  • High-tech enterprises

Latest News

Industry Knowledge Expansion

1. Enhanced Thrust Force Management: The Importance of Contact Angle
The contact angle of 35 degrees in Series 30 bearings plays a pivotal role in managing thrust forces effectively, distinguishing them as a superior solution for applications with demanding axial load requirements. This angle is carefully chosen to optimize the balance between radial and axial load-bearing capabilities, ensuring that the bearing maintains stability and performance integrity even under extreme conditions. The contact angle dictates the distribution of forces within the bearing assembly. A larger contact angle results in a greater proportion of the load being carried by the balls, rather than by the raceways. For Series 30 bearings, the 35-degree contact angle strikes an optimal balance, enabling them to handle substantial thrust forces while maintaining operational precision. The contact angle influences the degree of axial rigidity exhibited by the bearing. In applications where axial forces are predominant, such as in machine tool spindles or automotive transmissions, maintaining rigidity is crucial to prevent deflection and ensure accurate positioning of components. Series 30 bearings excel in this regard, providing the necessary rigidity to support heavy thrust loads without compromising on performance. The careful consideration of the contact angle in Series 30 bearings underscores a commitment to engineering excellence, where every aspect of the design is meticulously optimized to deliver exceptional performance in real-world scenarios. By harnessing the advantages of this specific contact angle, engineers can confidently specify Series 30 bearings for applications where precision, reliability, and durability are non-negotiable.

2. Versatility in Application: Addressing Diverse Industrial Needs
Series 30 Double Row Angular Contact Ball Bearings epitomize versatility, catering to a wide spectrum of industrial needs across various sectors. Their robust design and exceptional performance characteristics make them indispensable in applications ranging from heavy machinery to precision instrumentation. In heavy-duty industrial environments, such as mining equipment or construction machinery, Series 30 bearings shine as reliable workhorses capable of enduring harsh operating conditions. Their ability to withstand both radial and axial loads makes them ideal for supporting rotating components, such as shafts or gears, while ensuring smooth operation and prolonged service life. Series 30 bearings find extensive use in automotive applications, where they contribute to the efficiency and performance of transmissions, differential gears, and wheel hubs. Their high load-carrying capacity and precise motion control enable automotive systems to operate smoothly and reliably, enhancing vehicle performance and driver safety. In precision instruments and robotics, where accuracy and repeatability are paramount, Series 30 bearings excel at providing the necessary stability and control. Whether in robotic arms, CNC machining centers, or medical devices, these bearings deliver precise motion control and positional accuracy, enabling intricate tasks to be performed with utmost efficiency and reliability.