Moog DB-4000-B-1ES Matrix Frameless Brushless Torque Motor
101.6 mm OD DB Matrix frameless rotor/stator set (12-pole, no Hall sensors in this code); US benchmark for direct-drive joints, rated by peak torque and Km rather than a continuous rating.
Specifications
| Peak torque | 2000 oz-in (14.12 Nm) |
|---|---|
| Continuous torque (not stated; Km and TPR given) | unknown |
| Outer diameter | 4.0 in (101.6 mm) |
| Stack length | stack 'A' 2.000 in (50.80 mm); dim. 'B' 2.095 in (53.21 mm) |
| Voltage at peak torque | 29.5 V stalled at peak torque (no bus rating stated) |
| Weight | 94.4 oz nom (2676 g) |
| Bore ID | 11.18 mm |
| Torque sensitivity | 66.5 oz-in/A (0.470 Nm/A) |
| Amps at peak torque | 30.1 A |
| Motor constant | 67.2 oz-in/√W |
Who makes it
Need a different shaft, connector, firmware or enclosure, or a price at 1,000 units? Maglev takes the catalog part to the factory and comes back with a custom version and one fixed price.
Landed cost in the US
Total US duty on this part by where it is made (2026-10-29). Mexico shown before USMCA preference; qualifying goods enter duty free. Your factory choice, not the shipping port, sets the origin.
Loading duty data…
Compliance
| HTS classification | 8501.31.20.00 typical, not a ruling |
|---|---|
| NDAA | unknown |
| Blue UAS | unknown |
| FCC | n/a |
Sources
- https://www.moog.com/products/motors-servomotors/brushless-motors/high-performance-direct-drive-brushless-dc-motors/db-4000-matrix-series.htmlMoog series page: OD, ID, stack range, links
- https://www.moog.com/content/dam/moog/literature/products/motors-servomotors/DB-4000.pdfMoog Matrix series datasheet: per-model peak torque, Km, weight, winding constants, A/B dims
Record confidence: VERIFIED. VERIFIED means the maker's own documents; REPORTED means a credible third party; UNVERIFIED means a single weak source. Anything we could not confirm says unknown.