775 DC Motor, DC can motor

A 5.005 mm shaft, 18.2 mm long, comes out of the 42.3 mm can of the 775 DC motor (DC can motor), which is 67 mm long. It mounts by two M4 holes 29 mm apart. Here as simplified STEP files. Modeled from Mabuchi's RS-775VC, Johnson Electric's HC785LP and AndyMark's am-3775a RedLine drawings. AndyMark's flux ring is recorded as Dr, not modeled: the model is the bare can (#1369 item 2).

How these parts are made, and what the levels mean: read the method

• Also searched as: 775 DC motor
• Model id: dc-motors-775
• Standard: DC can motor · size 775

Files

Part key	Simplified
dc-motors-775	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
D	Can diameter		42.3		42.3	nominal	L1
L	Body length		67		67	nominal	L1
Lt	Overall length		90 ref		90	reference value	L0 (ref: one source)
E	Shaft length		18.2		18.2	nominal	L1
d	Shaft diameter	4.99	5.005	5.01	5.005	nominal	L1
B	Front boss diameter		17.5		17.5	nominal	L1
h	Front boss height		4.4		4.4	nominal	L1
Br	Rear boss diameter		17.5		17.5	nominal	L1
hr	Rear boss height		4.3		4.3	nominal	L1
A	Mounting hole spacing		29		29	nominal	L1
nh	Number of mounting holes		2		2	nominal	L1
dt	Mounting hole thread		4		4	nominal	L1
Dx	Largest outside diameter			47	47	single limit (max), modeled at the limit	L0 (max: one source)
Dr	Flux ring diameter		44.83		44.83	nominal	L0 (nom: one source)

Drawing

As a PDF: CC-DCMOTOR-SZ-775.pdf.

What each maker states

• Where the makers' drawings differ, the model takes the largest stated, so a mount made to it clears every maker's motor (ADR 0134 row 4): can diameter D 42.3 mm (Johnson Electric 42.3, Mabuchi 42.1); shaft length E 18.2 mm (Johnson Electric 15.8, Mabuchi 18.2); front boss B 17.5 mm (AndyMark 17.5, Johnson Electric 17.5, Mabuchi 15); front boss height h 4.4 mm (AndyMark 4, Johnson Electric 3.9, Mabuchi 4.4); rear boss Br 17.5 mm (AndyMark 17.5, Mabuchi 15); rear boss height hr 4.3 mm (Johnson Electric 4, Mabuchi 4.3). Check your own motor's drawing where it matters.

The 775 DC motor beside the 550

The 775 is the last of the 5 DC can motor DC motors published here, listed from Mabuchi FA-130RA, 130 to 775.

• Can diameter (D): 42.3 mm on the 775 DC motor, against 35.8 mm on the 550.
• Body length (L): 67 mm on the 775 DC motor, against 57 mm on the 550.
• Overall length (Lt): 90 mm (reference) on the 775 DC motor, against 75 mm (reference) on the 550.
• Shaft length (E): 18.2 mm on the 775 DC motor, against 21 mm on the 550.
• Shaft diameter (d): 5.005 mm on the 775 DC motor, against 3.175 mm on the 550.
• Front boss diameter (B): 17.5 mm on the 775 DC motor, against 13 mm on the 550.
• Front boss height (h): 4.4 mm on the 775 DC motor, against 4.5 mm on the 550.
• Rear boss diameter (Br): 17.5 mm on the 775 DC motor, against 13 mm on the 550.

Other sizes

• One size smaller: 550 DC Motor, DC can motor, 35.8 mm can, 57 mm long, 3.175 mm shaft, M3 mounting holes 25 mm apart, Johnson Electric and Mabuchi Motor data.

Documents

• CC-DCMOTOR-DS-775.pdf: 775 datasheet: values with levels, sources
• CC-DCMOTOR-SZ-775.pdf: 775 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

andymark-am-3775a, johnson-hc785lp-024, johnson-hc785lp-024-figures, mabuchi-complete. Full citations: the method page and this size's datasheet.

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