C1321

Coreless brushed DC motor platform. One body, 7 published windings, 2 published configurations.

Diameter: 13mm
Body length: 20.5mm
Mass: 13.6g
Commutator segments: 5
Rotation: CW
Revision: A, reviewed 2026-08-18

Envelope

Side elevation of the C1321 motor body, drawn to scale from the published envelope: ⌀13.0 mm by 20.5 mm. Shaft extension, flats, lead exit and mounting features are governed by the controlled drawing and are not shown here.

Model bounding box, X × Y × Z: 13.0 mm × 13.0 mm × 24.5 mm
Model revision: A, reviewed 2026-08-18
Mesh: 4,868 triangles

Every published winding

One row per winding. The envelope is identical across the platform; the electrical record is not.

C1321 windings
SKU	Rated voltage V	No-load speed rpm	Rated speed rpm	Rated torque mN·m	Stall torque mN·m	Rated current mA	No-load current mA	Stall current mA	Rated output W
Compare MM-C1321-030A MM-C1321-030A	3.0	7,350	6,120	0.5	2.98	149	20	792	0.32
Compare MM-C1321-030B MM-C1321-030B	3.0	9,790	8,290	0.5	3.28	194	23	1,150	0.43
Compare MM-C1321-060A MM-C1321-060A	6.0	8,260	7,150	0.5	3.71	78	8	531	0.37
Compare MM-C1321-060B MM-C1321-060B	6.0	10,200	7,740	1	4.22	196	14	780	0.81
Compare MM-C1321-060C MM-C1321-060C	6.0	12,100	9,920	1	5.55	242	23	1,240	1.04
Compare MM-C1321-120A MM-C1321-120A	12.0	9,940	7,700	1	4.44	94	6	396	0.81
Compare MM-C1321-120B MM-C1321-120B	12.0	12,900	10,800	1	6.34	124	8	738	1.13

Tick up to 4 products, then compare them side by side.

What this platform can be built into.

Published configurations on C1321
Configuration	Ratio :1	No-load output speed rpm	Continuous output torque mN·m	Torque margin ×	Rated voltage V
MM-C1321-P00191-060B	19.13	533.2	15.5	12.65	6.0
MM-C1321-P03661-030A	366.12	20.1	120.8	2.43	3.0