370 size brushed DC motor: Ø24.4 × 30.8 mm, 2 × M3 on 17 — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/dc-motor-370-size/  (CC BY 4.0)
Basis: Mabuchi RF-370CA dimension drawing; boss and hole spacing also on the RCDrone 370 listing. Envelope only: the outside of the motor at its published sizes. The windings, magnets, brushes and bearings inside are not drawn.
Catalog version: 2026-10-20

Sizes: see table below
- Envelope only: the outside of the motor at its published sizes. The windings, magnets, brushes and bearings inside are not drawn.
- The can is Ø24.4 × 30.8 with a Ø6.45 × 1.7 boss on each end.
- The Ø2.0 shaft is 42.0 mm long and stands 10.5 mm beyond the front boss: 43.0 mm from the end-cap face to the shaft tip.
- Two M3 × 0.5 tapped holes on 17.0 mm centres in the face. The drawing gives no thread depth, so the holes are drawn Ø3.0 × 2.0 deep only to mark where they are.
- The terminal tabs are 18.3 mm apart on the end cap; they and the wire exit are not drawn.
- The JGA25-370 gearmotor uses this can (see its page).
- In DIY Stirling builds, brushed DC motors of this kind are turned by the engine and used as a generator (an LED, a resistor or a meter across the leads) or as a load on the flywheel shaft.

feature  mm  from
can  Ø24.4 × 30.8  Mabuchi RF-370CA
front and rear boss  Ø6.45 × 1.7  Mabuchi RF-370CA
shaft  Ø2.0 × 42.0 long  Mabuchi RF-370CA
shaft beyond the front boss  10.5  Mabuchi RF-370CA
end cap to shaft tip  43.0  Mabuchi RF-370CA
face holes  2 × M3 × 0.5 on 17.0  Mabuchi RF-370CA, RCDrone
terminal spacing  18.3  Mabuchi RF-370CA, RCDrone

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Mabuchi Motor (hosted by IBS Electronics): RF-370CA datasheet and dimension drawing — PDF — manufacturer datasheet [verify license at link] — https://datasheets.ibselectronics.com/RF370CA-15370-Mabuchi-datasheet-7281042.pdf
- RCDrone: 370 brushed motor listing with drawing values: Ø24.4 × 30.8, boss Ø6.5 × 1.5, M3 on 17, terminals 18.3 apart — web — listing [verify license at link] — https://rcdrone.top/ja/products/rs370-brushed-dc-motor-quantity-packs

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/dc-motor-370-size/index.json
API: https://xemstudio.com/api/geometry?object=dc-motor-370-size