DPP/MDPP Series
DPP series and MDPP series bearings are double row, radial-type aerospace bearings for airframe control. Installed with PTFE seals.
Radial Type/Double Row Aircraft Control Bearing
- Manufactured to AS27644 per AS7949
- Double row ball bearing
- All external surfaces except bore and stainless steel seal retainers are cadmium plated
- Installed with PTFE seals
- Pre-lubricated (see grease specifications)
MDPP Series
- Precision Series tolerances in light blue
- When ordering precision parts be sure to add the “M” prefix to the standard part number
| (Click on Bearing Part Number to get 2D/3D CAD files from VirtualCAD) | |
|---|---|
| Bearing Part Number | |
| MS 27644- | |
| Bore d (in.) | |
| Outside Diameter D (in.) | |
| Inner Ring Width B (in.) | |
| Outer Ring Width C (in.) | |
| Inner Land Diameter d1 | |
| Inner Ring Chamfer c1 | |
| Outer Ring Chamfer c | |
| Radial Limit Load Rating | |
| Thrust Limit Load Rating | |
| +.0007 -.0005 | |
| +.0000 -.0003 | |
| +.0000 -.0005 | |
| +.0000 -.0004 | |
| +.000 -.005 | |
| +.0000 -.0025 | |
| +.000 -.005 | |
| +.000 -.005 | |
| Approx. | |
| +.015 -.000 | |
| +.015 -.000 | |
| (lbs.) † | |
| (lbs.) † | |
| DPP3 | |
| -3 | |
| 0.1900 | |
| 0.7774 | |
| 0.495 | |
| 0.473 | |
| 0.302 | |
| 0.005 | |
| 0.018 | |
| 2950 | |
| 1700 | |
| DPP4 | |
| -4 | |
| 0.2500 | |
| 0.9014 | |
| 0.620 | |
| 0.491 | |
| 0.410 | |
| 0.005 | |
| 0.032 | |
| 5370 | |
| 1800 | |
| DPP5 | |
| -5 | |
| 0.3125 | |
| 1.2500 | |
| 0.745 | |
| 0.687 | |
| 0.469 | |
| 0.015 | |
| 0.032 | |
| 11000 | |
| 4000 | |
| DPP6 | |
| -6* | |
| 0.3750 | |
| 1.4375 | |
| 0.870 | |
| 0.794 | |
| 0.551 | |
| 0.015 | |
| 0.032 | |
| 15760 | |
| 5300 | |
| DPP8 | |
| -8* | |
| 0.5000 | |
| 1.6875 | |
| 0.932 | |
| 0.856 | |
| 0.735 | |
| 0.015 | |
| 0.044 | |
| 23600 | |
| 7800 | |
| DPP10 | |
| -10* | |
| 0.6250 | |
| 1.9375 | |
| 0.995 | |
| 0.920 | |
| 0.890 | |
| 0.015 | |
| 0.044 | |
| 28400 | |
| 9400 | |
| wdt_ID | Part Number | MS 27644- | Bore d (in.)<br>+.0007 to -.0005<br>+.0000 to -.0003 | Outside Diameter D (in.)<br>+.0000 to -.0005<br>+.0000 to -.0004 | Inner Ring Width B (in.)<br>+.000 to -.005<br>+.0000 to -.0025 | Outer Ring Width C (in.)<br>+.000 to -.005<br>+.000 to -.005 | Inner Land Diameter d1 (in.)<br>Approx. | Inner Ring Chamfer<br>c1 (in.) | Outer Ring Chamfer<br>c (in.) | Radial Limit Load Rating (lbs.) † | Thrust Limit Load Rating (lbs.) † | Footnote(**) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | DPP3 | -3 | 0.19 | 0.7774 | 0.495 | 0.473 | 0.302 | 0.005 | 0.018 | 2950 | 1700 | |
| 2 | DPP4 | -4 | 0.25 | 0.9014 | 0.620 | 0.491 | 0.410 | 0.005 | 0.032 | 5370 | 1800 | |
| 3 | DPP5 | -5 | 0.3125 | 1.25 | 0.745 | 0.687 | 0.469 | 0.015 | 0.032 | 11000 | 4000 | |
| 4 | DPP6 | -6* | 0.375 | 1.4375 | 0.870 | 0.794 | 0.551 | 0.015 | 0.032 | 15760 | 5300 | Refer to QLP-AS7949 for current approval status |
| 5 | DPP8 | -8* | 0.5 | 1.6875 | 0.932 | 0.856 | 0.735 | 0.015 | 0.044 | 23600 | 7800 | Refer to QLP-AS7949 for current approval status |
| 6 | DPP10 | -10* | 0.625 | 1.9375 | 0.995 | 0.920 | 0.890 | 0.015 | 0.044 | 28400 | 9400 | Refer to QLP-AS7949 for current approval status |
| Part Number | MS 27644- | Bore d (in.)<br>+.0007 to -.0005<br>+.0000 to -.0003 | Outside Diameter D (in.)<br>+.0000 to -.0005<br>+.0000 to -.0004 | Inner Ring Width B (in.)<br>+.000 to -.005<br>+.0000 to -.0025 | Outer Ring Width C (in.)<br>+.000 to -.005<br>+.000 to -.005 | Inner Land Diameter d1 (in.)<br>Approx. | Inner Ring Chamfer<br>c1 (in.) | Outer Ring Chamfer<br>c (in.) | Radial Limit Load Rating (lbs.) † | Thrust Limit Load Rating (lbs.) † | Footnote(**) |
* Refer to QLP-AS7949 for current approval status.
Notes:- Do not use bearings as track rollers, cam follower rolls or for similar applications.
- Check with Schatz Bearing Corporation for current approval status.
- Contact Schatz Bearing Corporation’s Engineering Department for further technical information.
- Check with Schatz Bearing Corporation’s Sales Department for price and availability.
