Series 239-Spherical Roller Bearings OEM/ODM

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Series 239-Spherical Roller Bearings

  • Design Variants
  • Tolerance
  • Internal clearance
Model Dimensions Rated load Extreme speed Calculation factor Weight
d D B r1,r2 min Dynamic load Static load Grease lubrication Oil lubrication e Y1 Y2 Yo [kg]
23936MB
180
250
52
2 440 850 1200 1600 0.2 3.4 5.1 3.3 8.12
23936K,MB
180
250
52
2 440 850 1200 1600 0.2 3.4 5.1 3.3 8.12
23938MB
190
260
52
2 465 900 1100 1500 0.18 3.7 5.5 3.6 8.46
23938K.MB
190
260
52
2 465 900 1100 1500 0.18 3.7 5.5 3.6 8.46
23940MB
200
280
60
2.1 525 1020 1100 1400 0.2 3.4 5.1 3.3 11.5
23940K.MB
200
280
60
2.1 525 1020 1100 1400 0.2 3.4 5.1 3.3 11.5
23944MB
220
300
60
2.1 625 1344 1100 1500 0.18 3.8 5.6 3.7 13
23944K.MB
220
300
60
2.1 625 1344 1100 1500 0.18 3.8 5.6 3.7 13
23948K.MB
240
320
60
2.1 600 1170 1000 1300 0.17 4.1 6 4 14
23948MB
240
320
60
2.1 600 1170 1000 1300 0.17 4.1 6 4 14
23952K.MB
260
360
75
2.1 845 1604 850 1100 0.19 3.5 5.3 3.5 24
23952MB
260
360
75
2.1 845 1604 850 1100 0.19 3.5 5.3 3.5 24
23956K.MB
280
380
75
2.1 950 2000 900 1200 0.18 3.8 5.6 3.7 26
23956MB
280
380
75
2.1 950 2000 900 1200 0.18 3.8 5.6 3.7 26
23960K.MB
300
420
90
3 1175 2261 750 1000 0.2 3.4 5.1 3.3 40
23960MB
300
420
90
3 1960 2261 750 1000 0.2 3.4 5.1 3.3 40
23960K.MB
300
460
118
4 1960 3650 630 800 0.25 2.7 4 2.6 73.6
23964K.MB
320
440
90
3 1215 2409 670 900 0.19 3.6 5.4 3.5 42
23964MB
320
440
90
3 1215 2409 670 900 0.19 3.6 5.4 3.5 42
23968K.MB
340
460
90
3 1306 2691 630 850 0.189 3.8 5.7 3.8 45
23968MB
340
460
90
3 1306 2691 630 850 0.189 3.8 5.7 3.8 45
23972K.MB
360
480
90
3 1030 3200 560 700 0.17 4.1 6 4 47
23972MB
360
480
90
3 1030 3200 560 700 0.17 4.1 6 4 47
23976K.MB
380
520
106
4 1785 4000 630 850 0.19 3.6 5.3 3.5 70
23976MB
380
520
106
4 1785 4000 630 850 0.19 3.6 5.3 3.5 70
23980MB
400
540
106
4 1850 3990 600 800 0.18 3.7 5.5 3.6 72
23980K.MB
400
540
106
4 1850 3990 600 800 0.18 3.7 5.5 3.6 72
23984K.MB
420
560
106
4 1960 4130 600 800 0.18 3.8 5.7 3.8 75
23984MB
420
560
106
4 1960 4130 600 800 0.18 3.8 5.7 3.8 75
23988K.MB
440
600
118
4 2100 4690 560 750 0.18 3.7 5.5 3.6 102
23988MB
440
600
118
4 2100 4690 560 750 0.18 3.7 5.5 3.6 102
23992K.MB
460
620
118
4 2305 5036 530 700 0.18 3.8 5.7 3.8 105
23992MB
460
620
118
4 2305 5036 530 700 0.18 3.8 5.7 3.8 105
23996K.MB
480
560
128
5 2525 5500 450 600 0.18 3.8 5.6 3.7 128
23996MB
480
560
128
5 2525 5500 450 600 0.18 3.8 5.6 3.7 128
239/500K.MB
500
670
128
5 2500 6090 480 630 0.17 3.9 5.8 3.8 130
239/500MB
500
670
128
5 2500 6090 480 630 0.17 3.9 5.8 3.8 130
239/530MB
530
710
136
5 2980 6755 450 600 0.18 3.8 5.7 3.8 150
239/530K.MB
530
710
136
5 2980 6755 450 600 0.18 3.8 5.7 3.8 150
239/560K.MB
560
750
140
5 3100 7650 340 430 0.17 4 5.9 3.9 183
239/560MB
560
750
140
5 3100 7650 340 430 0.17 4 5.9 3.9 183
239/600K.MB
600
800
150
5 3450 8650 320 400 0.17 4 5.9 3.9 221
239/600MB
600
800
150
5 3450 8650 320 400 0.17 4 5.9 3.9 221
239/630K.MB
630
850
165
6 4290 9910 380 500 0.18 3.8 5.7 3.7 280
239/630MB
630
850
165
6 4290 9910 380 500 0.18 3.8 5.7 3.7 280
239/670K.MB
670
900
170
6 4300 10600 280 360 0.17 4 5.9 3.9 326
239/670MB
670
900
170
6 4300 10600 280 630 0.17 4 5.9 3.9 326
239/710K.MB
710
950
180
6 4800 12000 260 340 0.18 3.8 5.7 3.8 386
239/710MB
710
950
180
6 4800 12000 260 340 0.18 3.8 5.7 3.8 386
239/750K.MB
750
1000
185
6 5200 12900 260 340 0.17 4 5.9 3.9 437
239/750MB
750
1000
185
6 5200 12900 260 340 0.17 4 5.9 3.9 437
239/800K.MB
800
1060
195
6 5850 15000 240 320 0.17 4.1 6 4 506
239/800MB
800
1060
195
6 5850 15000 240 320 0.17 4.1 6 4 506
239/900K.MB
900
1180
200
6 6930 17120 280 360 0.16 4.3 6.4 4.2 605
239/900MB
900
1180
200
6 6930 17120 280 360 0.16 4.3 6.4 4.2 605
239/950MB
950
1250
224
7.5 7500 20000 190 260 0.16 4.2 6.3 4.1 776
239/950K.MB
950
1250
224
7.5 7500 20000 190 260 0.16 4.2 6.3 4.1 776
239/1000MB
1000
1320
236
7.5 8150 21600 180 240 0.16 4.2 6.3 4.1 921
239/1000K.MB
1000
1320
236
7.5 8150 21600 180 240 0.16 4.2 6.3 4.1 921
239/1060MB
1060
1400
250
7.5 9800 26000 170 220 0.17 4.1 6 4 1110
239/1060K.MB
1060
1400
250
7.5 9800 26000 170 220 0.17 4.1 6 4 1110
239/1120MB
1120
1460
250
7.5 10200 27500 160 200 0.16 4.3 6.4 4.2 1150
239/1120K.MB
1120
1460
250
7.5 10200 27500 160 200 0.16 4.3 6.4 4.2 1150
239/1180MB
1180
1540
272
7.5 11400 31000 150 190 0.17 4.1 6 4 1410
239/1180K.MB
1180
1540
272
7.5 11400 31000 150 190 0.17 4.1 6 4 1410

Ningbo DHK Precision Bearing Co., Ltd.

  • 0+

    Years Experience Working

  • 0+

    Customer Service

  • 0+

    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 239-Spherical Roller Bearings Factory and OEM/ODM Series 239-Spherical Roller 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.

CERTIFICATE

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

  • Honor
  • Honor
  • Environmental Managementsystem Certificate
  • Measurement Management System
  • Invention patent1
  • Invention patent2
  • Invention patent3
  • High-tech enterprises

Latest News

Industry Knowledge Expansion

1. Understanding Series 239-Spherical Roller Bearings
One of the defining characteristics of Series 239-Spherical Roller Bearings is their unique construction. Comprising an inner ring with two raceways, an outer ring with a spherical raceway, and barrel-shaped rollers symmetrically positioned between the raceways, these bearings are adept at accommodating both radial and axial loads with remarkable efficiency. The symmetrical roller design ensures uniform distribution of forces across the bearing, minimizing stress concentrations and enhancing overall load-bearing capacity. The optimized internal geometry of Series 239-Spherical Roller Bearings plays a pivotal role in their performance and longevity. Through meticulous engineering and advanced manufacturing techniques, these bearings exhibit superior resistance to wear, fatigue, and deformation, even when subjected to prolonged periods of operation under extreme conditions. This inherent robustness not only extends the operational lifespan of the bearings but also contributes to the reliability and efficiency of the machinery in which they are employed. The design features of Series 239-Spherical Roller Bearings are meticulously crafted to meet the demands of modern industrial applications, where reliability, efficiency, and longevity are paramount.  One key design feature of these bearings is their symmetrical roller arrangement. By evenly distributing the load between the rollers and raceways, Series 239-Spherical Roller Bearings can withstand both radial and axial loads with exceptional efficiency, ensuring smooth and reliable operation even in the most demanding environments. This symmetrical design also minimizes the risk of skewing or tilting under load, further enhancing the stability and performance of the bearing assembly.

2. Grease Lubrication,Oil Lubrication: Enhancing Reliability and Elevating Performance
One of the key advantages of grease lubrication is its ability to maintain a consistent lubricating film between the rolling elements and raceways, even under varying operating conditions. This ensures smooth and reliable operation of the bearing assembly, while also providing an additional layer of protection against contamination and moisture ingress. Grease lubrication offers superior sealing properties compared to oil lubrication, further enhancing the reliability and longevity of Series 239-Spherical Roller Bearings in demanding industrial environments. When implementing grease lubrication, selecting the appropriate grease type and replenishment intervals are critical considerations. By choosing a grease formulation tailored to the specific operating conditions and performance requirements of the application, engineers can optimize the performance and lifespan of Series 239-Spherical Roller Bearings, while also minimizing maintenance downtime and associated costs. One of the primary advantages of oil lubrication is its ability to dissipate heat effectively, making it ideal for applications with high operating speeds or heavy loads. By continuously supplying fresh lubricant to the bearing surfaces, oil lubrication helps maintain stable operating temperatures, thereby reducing the risk of overheating and thermal degradation of the lubricant and bearing components. Oil lubrication offers superior contamination control compared to grease lubrication, as it facilitates the removal of debris, moisture, and other contaminants from the bearing assembly. This not only extends the operational lifespan of Series 239-Spherical Roller Bearings but also reduces the risk of premature wear, fatigue, and failure, ensuring uninterrupted operation and maximum productivity in critical industrial applications.