Flanged miniature ball bearings are used when a small bearing must be located against a plate, shoulder, pulley, wheel, guide, or compact housing without adding a separate retaining part. The flange does not replace a correct shaft and housing fit, but it gives the designer a simple locating face when axial positioning is limited.
Use this flanged miniature ball bearing size chart to compare bore size, outside diameter, flange diameter, width, flange width, basic load rating, and limiting speed before replacement or RFQ review. For small-size matching, compare this chart with CXE Bearing collections for stainless miniature ball bearings, metric ball bearings, and stainless steel bearings; those pages provide a cleaner path from dimensions to related products.
How to Read This Flanged Bearing Chart
All dimensions in the table are in millimeters. The d value is the bore, D is the outside diameter, D1 is the flange diameter, b is the bearing width, and c is the flange width. Load values are listed in newtons, and speed values are shown in thousands of rpm. The open version usually has lower seal drag, while the ZZ shielded version gives basic particle protection with a compact metal shield.
When comparing an old part, check the bearing number first, then confirm the measured bore, OD, width, and flange diameter. A flanged bearing with the same bore and OD may still fail to seat correctly if the flange diameter or flange width is different.
Where Flanged Miniature Bearings Are Commonly Used
These small flanged bearings are often reviewed for instruments, guide rollers, small motors, automation modules, light conveyors, pulleys, robotics, model equipment, compact wheels, and positioning devices. The useful feature is the flange face: it helps locate the bearing in a thin panel or small housing where there is not enough room for a deep counterbore.
What to Confirm Before Replacement
- Bearing number and suffix, such as open, ZZ, or a requested rubber-sealed version
- Bore, outside diameter, overall width, flange diameter, and flange width
- Shaft support, housing material, and whether the flange is used as the locating face
- Radial load, any axial locating force, speed range, and duty cycle
- Exposure to dust, moisture, cleaning fluid, or light corrosion risk
- Whether stainless steel, standard bearing steel, or another material is needed
Size Chart Notes
Type Bore(d) Outer(D) Flange Diameter(D1) Width(b) Flange Width(c) Cr(N) Cor(N) Limit Speed
Open ZZ Open ZZ Open ZZ Grease Oil
F682zz 2 5 6.1 1.5 2.3 0.5 0.6 169 50 85 100
MF52zz 5 6.2 2 2.5 0.6 0.6 169 50 85 100
F692zz 6 7.5 2.3 3 0.6 0.8 330 99 75 90
MF62zz 6 7.2 2.5 2.5 0.6
330 99 75 90
MF72zz 7 8.2 2.8 3 0.6 0.6 386 129 63 75
F602zz 7 8.5 2.8 3.5 0.7 0.9 386 129 60 71
F682Xzz 2.5 6 7.1 1.8 2.6 0.5 0.8 209 74 71 80
F692Xzz 7 8.5 2.5 3.5 0.7 0.9 386 129 63 75
MF82X 8 9.2 2.5
0.6
558 180 60 67
F602Xzz 8 9.5 2.8 4 0.7 0.9 552 177 60 71
MF63zz 3 6 7.2 2 2.5 0.6 0.6 209 74 71 80
F683zz 7 8.1 2 3 0.5 0.8 311 112 63 75
MF83zz 8 9.2 2.5 3 0.6 0.6 395 141 60 67
F693zz 8 9.5 3 4 0.7 0.9 558 180 60 67
MF93zz 9 10.2 10.6 2.5 4 0.6 0.8 571 189 56 67
F603zz 9 10.5 3 5 0.7
571 189 56 67
F623zz 10 11.5 4 4 1 1 631 219 50 60
MF74zz 4 7 8.2 2 2.5 0.6 0.6 255 108 60 67
MF84zz 8 9.2 2 3 0.6 0.6 395 141 56 67
F684zz 9 10.3 2.5 4 0.6 1 641 227 53 63
MF104zz 10 11.2 11.6 3 4 0.6 0.8 711 272 48 56
F694zz 11 12.5 4 4 1 1 957 350 48 56
F604zz 12 13.5 4 4 1 1 957 350 48 56
F624zz 13 15 5 5 1 1 1301 488 40 48
F634zz 16 18 5 5 1 1 1340 523 36 43
MF85zz 5 8 9.2 2 2.5 0.6 0.6 218 90 53 63
MF95zz 9 10.2 2.5 3 0.6 0.6 431 169 50 60
MF105zz 10 11.2 11.6 3 4 0.6 0.8 431 169 50 60
MF115zz 11 12.5
4 0.8 1 716 282 45 53
F685zz 11 12.5 3 5 0.8 1 716 282 45 53
F695zz 13 15 4 4 1 1 1077 432 43 50
F605zz 14 16 5 5 1 1 1329 507 40 50
F625zz 16 18 5 5 1 1 1729 675 36 43
F635zz 19 22 6 6 1.5 1.5 2336 896 32 40
MF106zz 6 10 11.2 2.5 3 0.6 0.6 496 218 45 53
MF126zz 12 13.2 13.6 3 4 0.6 0.8 716 295 43 50
F686zz 13 15 3.5 5 1 1.1 1082 442 40 50
F696zz 15 17 5 5 1.2 1.2 1340 523 40 45
F606zz 17 19 6 6 1.2 1.2 2263 846 38 45
F626zz 19 22 6 6 1.5 1.5 2336 896 32 40
MF117zz 7 11 12.2 2.5 3 0.6 0.6 455 202 43 50
MF137zz 13 14.2 14.6 3 4 0.8 0.8 541 276 40 48
F687zz 14 16 3.5 5 1 1.1 1173 513 40 50
F697zz 17 19 5 5 1.2 1.2 1605 719 36 43
F607zz 19 22 6 6 1.5 1.5 2336 896 36 43
F627zz 22 25 7 7 1.5 1.5 3287 1379 30 36
MF128zz 8 12 13.2 13.6 2.5 3.5 0.6 0.8 543 274 40 48
MF148zz 14 15.6 3.5 4 0.8 0.8 817 386 38 45
F688zz 16 18 4 5 1 1.1 1252 592 36 43
F698zz 19 22 6 6 1.5 1.5 2237 917 36 43
F608zz 22 25 7 7 1.5 1.5 3293 1379 34 40
F689zz 9 17 19 4 5 1 1.1 1327 668 36 43
F699zz 20 23 6 6 1.5 1.5 2467 1081 34 40
F6700zz 10 15 16.5 16.5 3 4 0.8 0.8 850 430 14 16
F6800zz 19 21 5 5 1 1 1700 800 35 42
F6900zz 22 25 6 6 1.5 1.5 2611 1223 31 40
F6701zz 12 18 19.5 19.5 4 4 0.8 0.8 922 512 12 14
F6801zz 21 23 5 5 0.8 1 1911 1041 33 39
F6901zz 24 26.5 6 6 1 1.5 2831 1411 31 36
RFQ Details That Help Confirm the Right Flanged Bearing
For a replacement request, send the existing bearing number, a clear photo of the flange side, and the measured d, D, D1, b, and c dimensions. If the original bearing is mounted in a thin plate or small pulley, include a photo of the installation position so CXE Bearing can review whether the flange is only for location or also exposed to axial contact.
Also note the operating environment. A clean instrument may use a different material or closure choice than a small wheel exposed to water, dust, or washdown. If the machine cannot accept a wider sealed version, confirm the available axial space before changing from open or ZZ to a rubber-sealed option.
Common Mistakes When Matching Flanged Miniature Bearings
| Mistake | Why It Matters | What to Check |
|---|---|---|
| Matching only bore and OD | The flange may not seat in the housing | Measure D1 and flange width |
| Ignoring open vs ZZ width | Some miniature series change width by closure type | Confirm total bearing width |
| Treating the flange as a thrust bearing | The flange is mainly a locating feature | Review axial force separately |
| Choosing material only by appearance | Stainless and bearing steel can look similar | Confirm material requirement in the RFQ |
FAQ
Is a flanged miniature bearing the same as a standard miniature bearing?
No. The rolling element design may be similar, but the flanged version has an extended rim on one side of the outer ring. That rim helps locate the bearing against a plate, shoulder, or compact housing.
Can a ZZ flanged bearing be replaced with a 2RS version?
Sometimes, but the seal drag, available width, speed expectation, and operating environment should be checked first. Do not change the closure type only from the model number without confirming the installation space.
What dimensions should be measured first?
Measure bore, outside diameter, bearing width, flange diameter, and flange width. If any one of those dimensions is wrong, the bearing may fit the shaft but not seat correctly in the assembly.