Blog
Magnetic Ball Bearing
Magnetic Ball Bearing Introduction：
Magnetic ball bearing is single row ball beaing. It is also known as magneto bearing.
For this bearing, inner ring groove is slightly shallower than that of deep groove ball bearing, and the inner diameter of the outer ring is cylindrical from the bottom of the outer groove.
The outer ring can be separated, which is easy for installation. Normally, bearing cage is brass.
Usually, two sets of bearings are used oppositely.
This kind of bearing has an inner diameter of 4-20mm and belongs to small bearing.
Magnetic motor bearings are widely used in small generators, gyroscopes, metering together, etc..
Bearing Code Meaning:
E：bearing outer ring with + tolerance, for example E10
EN: bearing outer ring with – tolerance, for exampe EN15
Megnetic Ball Bearings Size Chart:
| E Series | EN Series | d (mm) | D (mm) | B,T (mm) | Dynamic C | Static C | Mass (kg) |
| E4 | EN4 | 4 | 16 | 5 | 168 | 26 | 0.005 |
| E5 | EN5 | 5 | 16 | 5 | 168 | 26 | 0.005 |
| E6 | EN6 | 6 | 21 | 7 | 254 | 40 | 0.011 |
| E7 | EN7 | 7 | 22 | 7 | 254 | 40 | 0.013 |
| E8 | EN8 | 8 | 24 | 7 | 350 | 58 | 0.016 |
| E9 | EN9 | 9 | 28 | 8 | 465 | 79 | 0.024 |
| E10 | EN10 | 10 | 28 | 8 | 465 | 79 | 0.023 |
| E11 | EN11 | 11 | 32 | 7 | 450 | 78 | 0.029 |
| E12 | EN12 | 12 | 32 | 7 | 450 | 78 | 0.028 |
| E13 | EN13 | 13 | 30 | 7 | 450 | 78 | 0.022 |
| – | EN14 | 14 | 35 | 8 | 590 | 106 | 0.035 |
| E15 | EN15 | 15 | 35 | 8 | 590 | 106 | 0.034 |
| BO15 | – | 15 | 40 | 10 | 750 | 139 | 0.06 |
| – | EN16 | 16 | 38 | 10 | 705 | 127 | 0.048 |
| L17 | – | 17 | 40 | 10 | 750 | 139 | 0.055 |
| – | EN17 | 17 | 44 | 11 | 750 | 138 | 0.078 |
| BO17 | – | 27 | 44 | 11 | 750 | 138 | 0.075 |
| – | EN18 | 18 | 40 | 9 | 515 | 97 | 0.05 |
| E19 | EN19 | 19 | 40 | 9 | 515 | 97 | 0.048 |
| E20 | EN20 | 20 | 47 | 12 | 1120 | 218 | 0.08 |
Contact Us:
If you have any questions about Magnetic Ball Bearing, pls feel free to contact us. We will reply you within 12 hours!
Questions that usually come up after Magnetic Ball Bearing
Which next options usually help after reviewing Magnetic Ball Bearing?
Most buyers benefit from one broader family destination, one more commercial route, and one supporting guide that answers the next practical question. That combination usually turns research into a clearer shortlist.
Why add related bearing destinations beside Magnetic Ball Bearing?
Because the first answer often leads to a second question about fit, applications, supplier choice, or repeat-order confidence. Keeping those next destinations close reduces unnecessary backtracking.
When is it worth moving from reading into a quote or product review?
That move usually makes sense once the topic has narrowed the likely bearing family and the remaining unknowns are commercial, dimensional, or application-specific rather than purely educational.
What usually makes the next bearing decision easier after Magnetic Ball Bearing?
The process is often easier when the wider family view, the more commercial destination, and one practical guide stay visible together. That keeps the decision grounded in both application detail and buying reality.
Buyer FAQ
Questions buyers ask before choosing the next bearing option
What is the main takeaway from Magnetic Ball Bearing?
The main takeaway is that magnetic ball bearing should be checked against the bearing family, dimensions, load direction, speed, and operating conditions instead of relying on the title or size alone.
When should I use this guide before requesting a quote?
Use the guide when you are comparing bearing models, checking suffix meanings, confirming seal or clearance choices, planning maintenance, or preparing details for replacement, production, or OEM sourcing.
How does this topic connect to special / other bearings?
The topic supports the Special / Other Bearings decision path by helping buyers understand fit, performance, specification details, or maintenance factors before choosing a product page or contacting the team.
Can this guide replace a final specification check?
No. The guide helps prepare the decision, but a final check should still confirm the part number, dimensions, load, speed, seal, clearance, precision, application, and order quantity.
What should I send if I need help after reading this guide?
Send the bearing number, measured size, photos if available, application, quantity, and any special operating conditions. That gives the team enough context to recommend the right product family or quote route.
Need help checking fit, price, or lead time? Request a bearing quote
