Compared to ordinary standard bearings, the Thin Wall Deep Groove Ball Bearings supplied by the BMT factory are not aimed at achieving extreme heavy loads. Instead, they solve the engineering problem of “insufficient space while ensuring rotational accuracy” for compact equipment.
BMT performs professional verification on thin-wall bearings, focusing on structural risks rather than basic dimensional checks. This is especially important for deep groove ball bearings used in space-constrained assemblies where ring deformation directly affects noise, life and running accuracy.
Simulate the press-fitting condition to detect the stress deformation of the inner and outer rings, eliminating abnormal sounds and premature wear caused by track deformation.
Simulate the actual rotational speed and load of the equipment, and test the temperature change and vibration for a long period to ensure stable operation.
For ZZ and 2RS sealed models, test the dust-proof and oil leakage prevention capabilities to adapt to various usage scenarios.
Batch inspect the radial clearance, strictly control batch deviations, and avoid equipment stalling and jittering faults.
Test the heat treatment structure and surface hardness of the bearing to enhance the fatigue resistance of thin-walled bearings.
Screen by noise and vibration levels to meet the low-noise requirements of silent equipment and motors.
The table below covers our common production range, including 61800, 6900 metric series and CSCA / CSCB inch-style thin section series. All values are for standard open bearings at room temperature. Need a metric alternative? Compare our full single row deep groove ball bearing range.
| Model | ID (mm) | OD (mm) | W (mm) | Cr (kN) | Cor (kN) | Max Speed (Oil) (rpm) | Max Speed (Grease) (rpm) |
|---|---|---|---|---|---|---|---|
| 61800 | 10 | 19 | 5 | 1.51 | 0.82 | 28000 | 20000 |
| 61801 | 12 | 21 | 5 | 1.84 | 1.08 | 24000 | 18000 |
| 61802 | 15 | 24 | 5 | 2.15 | 1.35 | 20000 | 15000 |
| 61803 | 17 | 26 | 5 | 2.54 | 1.68 | 18000 | 13000 |
| 61804 | 20 | 32 | 7 | 3.65 | 2.5 | 15000 | 11000 |
| 61805 | 25 | 37 | 7 | 4.32 | 3.05 | 12000 | 9000 |
| 61806 | 30 | 42 | 7 | 5.08 | 3.75 | 10000 | 8000 |
| 61807 | 35 | 47 | 7 | 5.75 | 4.45 | 9000 | 7000 |
| 61808 | 40 | 52 | 7 | 6.4 | 5.15 | 8000 | 6300 |
| 61809 | 45 | 58 | 7 | 7.45 | 6.2 | 7000 | 5600 |
| 61810 | 50 | 65 | 7 | 8.75 | 7.5 | 6300 | 5000 |
| 61811 | 55 | 72 | 9 | 11.8 | 10.2 | 5600 | 4500 |
| 61812 | 60 | 78 | 9 | 13.2 | 11.8 | 5000 | 4000 |
| 61813 | 65 | 85 | 10 | 15.8 | 14.5 | 4500 | 3600 |
| 61814 | 70 | 90 | 10 | 17 | 16 | 4000 | 3200 |
| 61815 | 75 | 95 | 10 | 18.2 | 17.5 | 3800 | 3000 |
| 61816 | 80 | 100 | 10 | 19.5 | 19 | 3600 | 2800 |
| 61817 | 85 | 110 | 13 | 25.5 | 25 | 3200 | 2400 |
| 61818 | 90 | 115 | 13 | 27 | 27 | 3000 | 2200 |
| 61819 | 95 | 120 | 13 | 28.5 | 29 | 2800 | 2000 |
| 61820 | 100 | 125 | 13 | 30 | 31 | 2600 | 1900 |
| 6900 | 10 | 22 | 6 | 2.08 | 1.18 | 24000 | 18000 |
| 6901 | 12 | 24 | 6 | 2.4 | 1.45 | 20000 | 15000 |
| 6902 | 15 | 28 | 7 | 3.05 | 1.95 | 18000 | 13000 |
| 6903 | 17 | 30 | 7 | 3.4 | 2.3 | 16000 | 12000 |
| 6904 | 20 | 37 | 9 | 5.15 | 3.55 | 13000 | 10000 |
| 6905 | 25 | 42 | 9 | 6 | 4.3 | 10000 | 8000 |
| 6906 | 30 | 47 | 9 | 7 | 5.3 | 9000 | 7000 |
| 6907 | 35 | 55 | 10 | 8.95 | 7.15 | 8000 | 6300 |
| 6908 | 40 | 62 | 12 | 11.8 | 9.5 | 7000 | 5600 |
| 6909 | 45 | 68 | 12 | 13.8 | 11.5 | 6300 | 5000 |
| 6910 | 50 | 72 | 12 | 15.2 | 13 | 6000 | 4800 |
| 6911 | 55 | 80 | 13 | 18.8 | 16.5 | 5300 | 4300 |
| 6912 | 60 | 85 | 13 | 20.5 | 18.5 | 5000 | 4000 |
| 6913 | 65 | 90 | 13 | 22.2 | 20.5 | 4500 | 3600 |
| 6914 | 70 | 100 | 16 | 30.5 | 28.5 | 4000 | 3200 |
| 6915 | 75 | 105 | 16 | 32.8 | 31 | 3800 | 3000 |
| 6916 | 80 | 110 | 16 | 35 | 33.5 | 3600 | 2800 |
| 6917 | 85 | 120 | 18 | 42.8 | 41.5 | 3200 | 2400 |
| 6918 | 90 | 125 | 18 | 45.8 | 45 | 3000 | 2200 |
| 6919 | 95 | 130 | 18 | 48.8 | 48.5 | 2800 | 2000 |
| 6920 | 100 | 140 | 20 | 56.8 | 57 | 2600 | 1900 |
| CSCA010 | 25.4 | 34.925 | 4.763 | 1.43 | 2.28 | 14000 | 10000 |
| CSCA015 | 38.1 | 47.625 | 4.763 | 2.45 | 3.95 | 11000 | 8000 |
| CSCA017 | 44.45 | 53.975 | 4.763 | 3.05 | 5 | 9500 | 7000 |
| CSCA020 | 50.8 | 63.5 | 6.35 | 4 | 6.8 | 8500 | 6300 |
| CSCA025 | 63.5 | 76.2 | 6.35 | 5.4 | 9.4 | 7000 | 5300 |
| CSCA030 | 76.2 | 88.9 | 6.35 | 6.8 | 12 | 6000 | 4500 |
| CSCA035 | 88.9 | 101.6 | 6.35 | 8.2 | 15 | 5300 | 4000 |
| CSCA040 | 101.6 | 114.3 | 6.35 | 9.6 | 18 | 4800 | 3600 |
| CSCA042 | 107.95 | 120.65 | 6.35 | 10.5 | 19.8 | 4500 | 3400 |
| CSCA045 | 114.3 | 127 | 6.35 | 11.5 | 22 | 4300 | 3200 |
| CSCA047 | 120.65 | 133.35 | 6.35 | 12.5 | 24 | 4000 | 3000 |
| CSCA050 | 127 | 139.7 | 6.35 | 13.5 | 26 | 3800 | 2800 |
| CSCA055 | 139.7 | 152.4 | 6.35 | 15.5 | 30 | 3400 | 2600 |
| CSCA060 | 152.4 | 165.1 | 6.35 | 17.5 | 34 | 3200 | 2400 |
| CSCA065 | 165.1 | 177.8 | 6.35 | 19.5 | 38 | 3000 | 2200 |
| CSCA070 | 177.8 | 190.5 | 6.35 | 21.5 | 42 | 2800 | 2000 |
| CSCA075 | 190.5 | 203.2 | 6.35 | 23.5 | 46 | 2600 | 1900 |
| CSCA080 | 203.2 | 215.9 | 6.35 | 25.5 | 50 | 2400 | 1800 |
| CSCA090 | 228.6 | 241.3 | 6.35 | 29.5 | 58 | 2200 | 1600 |
| CSCA100 | 254 | 266.7 | 6.35 | 33.5 | 66 | 2000 | 1500 |
| CSCA110 | 279.4 | 292.1 | 6.35 | 37.5 | 74 | 1800 | 1400 |
| CSCA120 | 304.8 | 317.5 | 6.35 | 41.5 | 82 | 1600 | 1200 |
| CSCB020 | 50.8 | 66.675 | 7.938 | 5.1 | 8.8 | 7500 | 5600 |
| CSCB025 | 63.5 | 79.375 | 7.938 | 6.9 | 12 | 6300 | 4800 |
| CSCB030 | 76.2 | 92.075 | 7.938 | 8.8 | 16 | 5600 | 4300 |
| CSCB035 | 88.9 | 104.775 | 7.938 | 10.8 | 20 | 4800 | 3600 |
| CSCB040 | 101.6 | 117.475 | 7.938 | 12.8 | 24 | 4300 | 3200 |
| CSCB042 | 107.95 | 123.825 | 7.938 | 13.8 | 26 | 4000 | 3000 |
| CSCB045 | 114.3 | 130.175 | 7.938 | 14.8 | 28 | 3800 | 2800 |
| CSCB047 | 120.65 | 136.525 | 7.938 | 15.8 | 30 | 3600 | 2600 |
| CSCB050 | 127 | 142.875 | 7.938 | 16.8 | 32 | 3400 | 2400 |
| CSCB055 | 139.7 | 155.575 | 7.938 | 19 | 37 | 3000 | 2200 |
| CSCB060 | 152.4 | 168.275 | 7.938 | 21.2 | 42 | 2800 | 2000 |
| CSCB065 | 165.1 | 180.975 | 7.938 | 23.4 | 47 | 2600 | 1900 |
| CSCB070 | 177.8 | 193.675 | 7.938 | 25.6 | 52 | 2400 | 1800 |
| CSCB075 | 190.5 | 206.375 | 7.938 | 27.8 | 57 | 2200 | 1600 |
| CSCB080 | 203.2 | 219.075 | 7.938 | 30 | 62 | 2000 | 1500 |
We have been deeply engaged in the research and development of non-standard bearings, familiar with the deformation problems of thin-walled bearings, and can provide professional selection support.
The entire production line is self-manufactured, without any outsourcing processes, and the production data is fully traceable.
We strictly follow the IATF 16949 and ISO 9001 quality systems, with standardized processes and stable quality. See our company profile for details.
We always have standard spare parts in stock, and can support customized configurations for working conditions, sealing and lubrication.
We independently develop a complete set of working condition tests, which can pre-avoid product risks and significantly reduce the trial-and-error costs for customers.
With an annual production capacity of 100 million sets, we can undertake large-scale OEM orders from overseas with long-term stability.
We can provide a complete set of qualification testing documents, which are suitable for overseas factory inspections and export audits.
Need Thin Wall Bearings for a Space-Limited Design?
Send your drawing, target dimensions or original part number. Our engineers will review the press-fit conditions, clearance and sealing choice, then reply with a suitable thin section bearing solution and a clear quotation.
A: They are suitable for regular radial and moderate axial loads. They are not recommended for strong impact and heavy load conditions. If your application needs higher load capacity in the same space, consider a angular contact ball bearing or a cylindrical roller bearing instead.
A: Yes. We can give reference suggestions on tolerances and press-fitting processes based on the customer's assembly method, including shaft and housing fits, shrink-fit temperature and installation tools.
A: For dusty environments, choose 2RS rubber seals; for high-temperature and high-speed conditions, prefer ZZ metal shields. The final choice should also consider the original bearing configuration and lubrication life.
A: Yes. We support non-standard customization. Just provide the drawings and we can conduct process evaluation and sample production. See our full product range for the base platforms available.
A: Grinding, heat treatment and assembly are all completed in our factory. The production records are complete and traceable, which supports both OEM audits and after-sales traceability.
A: Yes. We can supply based on vibration levels. This is suitable for equipment with silent motors, precision instruments and low-noise household appliances.
A: Yes. We can output material and testing-related documents to meet the requirements of overseas customers for audits. Please contact our team with the document list required by your quality department.
Address
No.183,Longfeng,West of Zhangting industrial Zone,Yuyao,Ningbo,China
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