Pololu 4742

Name: Pololu 4742
SKU: Pololu 4742

Model / article: Pololu 4742

Pololu 4742 is listed by Pololu in DC gearmotors. Published model data includes Product mass: 185 g; Gear ratio: 30:1. See the specification table for operating conditions and source evidence.

37D DC gearmotors

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Product overview

Manufacturer / supplier: Pololu
Series: 37D DC gearmotors
Component type: DC gearmotors
Source: Open published source

Published pricing

No verified public price indexed for this model. Contact PartMeld for a supplier inquiry.

Published specifications

Values are shown as published. Conditions, rating basis and source evidence apply to each value.

Latest source observation: 2026-09-08. Observation dates record evidence collection, not supplier re-verification.

Specifications and source evidence for Pololu 4742
Specification	Published value	Conditions and source
DimensionsModel-level statement	37D × 52L mm	rule validated Operating conditions manufacturer notes 1 Source evidence Pololu 4742 \| Size: 37D × 52L mm Pololu 4742 / Size Source observed: 2026-09-08View source
EfficiencyModel-level statement	54 %Rating: maximum	rule validated Operating conditions voltage v 12 Source evidence Pololu 4742 \| Max efficiency @ 12V: 54 % Pololu 4742 / Max efficiency @ 12V Source observed: 2026-09-08View source
Efficiency currentModel-level statement	0.78 ARating: maximum	rule validated Operating conditions operating point maximum efficiency Source evidence Pololu 4742 \| Current at max efficiency: 0.78 A Pololu 4742 / Current at max efficiency Source observed: 2026-09-08View source
Efficiency powerModel-level statement	5.1 WRating: maximum	rule validated Operating conditions operating point maximum efficiency Source evidence Pololu 4742 \| Output power at max efficiency: 5.1 W Pololu 4742 / Output power at max efficiency Source observed: 2026-09-08View source
Efficiency speedModel-level statement	280 rpmRating: maximum	rule validated Operating conditions operating point maximum efficiency Source evidence Pololu 4742 \| Speed at max efficiency: 280 rpm Pololu 4742 / Speed at max efficiency Source observed: 2026-09-08View source
Efficiency torqueModel-level statement	1.8 kg·cmRating: maximum	rule validated Operating conditions operating point maximum efficiency Source evidence Pololu 4742 \| Torque at max efficiency: 1.8 kg·cm Pololu 4742 / Torque at max efficiency Source observed: 2026-09-08View source
Encoder presentModel-level statement	N	rule validated Source evidence Pololu 4742 \| Encoders?: N Pololu 4742 / Encoders? Source observed: 2026-09-08View source
Gear ratioModel-level statement	30:1	rule validated Source evidence Pololu 4742 \| Gear ratio: 30:1 Pololu 4742 / Gear ratio Source observed: 2026-09-08View source
Product massModel-level statement	185 g	rule validated Source evidence Pololu 4742 \| Weight: 185 g Pololu 4742 / Weight Source observed: 2026-09-08View source
Maximum output powerModel-level statement	12 WRating: maximum	rule validated Operating conditions voltage v 12 Source evidence Pololu 4742 \| Max output power @ 12V: 12 W Pololu 4742 / Max output power @ 12V Source observed: 2026-09-08View source
Motor typeModel-level statement	12VRating: typical	rule validated Source evidence Pololu 4742 \| Motor type: 12V Pololu 4742 / Motor type Source observed: 2026-09-08View source
No load currentModel-level statement	0.15 A	rule validated Operating conditions manufacturer notes 4 voltage v 6 Source evidence Pololu 4742 \| No-load current @ 6V: 0.15 A Pololu 4742 / No-load current @ 6V Source observed: 2026-09-08View source
No load currentModel-level statement	0.2 A	rule validated Operating conditions voltage v 12 Source evidence Pololu 4742 \| No-load current @ 12V: 0.2 A Pololu 4742 / No-load current @ 12V Source observed: 2026-09-08View source
No load speedModel-level statement	330 rpm	rule validated Operating conditions voltage v 12 Source evidence Pololu 4742 \| No-load speed @ 12V: 330 rpm Pololu 4742 / No-load speed @ 12V Source observed: 2026-09-08View source
No load speedModel-level statement	170 rpm	rule validated Operating conditions manufacturer notes 4 voltage v 6 Source evidence Pololu 4742 \| No-load speed @ 6V: 170 rpm Pololu 4742 / No-load speed @ 6V Source observed: 2026-09-08View source
Shaft diameterModel-level statement	6 mm	rule validated Operating conditions manufacturer notes 2 Source evidence Pololu 4742 \| Shaft diameter: 6 mm Pololu 4742 / Shaft diameter Source observed: 2026-09-08View source
Stall currentModel-level statement	5.5 ARating: stall	extracted Operating conditions manufacturer notes 3 method manufacturer theoretical extrapolation operating point stall; not a continuous operating rating voltage v 12 Source evidence Pololu 4742 \| Stall current @ 12V: 5.5 A Pololu 4742 / Stall current @ 12V Source observed: 2026-09-08View source
Stall currentModel-level statement	3.0 ARating: stall	extracted Operating conditions manufacturer notes 4 method manufacturer theoretical extrapolation operating point stall; not a continuous operating rating voltage v 6 Source evidence Pololu 4742 \| Stall current @ 6V: 3.0 A Pololu 4742 / Stall current @ 6V Source observed: 2026-09-08View source
Stall torqueModel-level statement	14 kg·cmRating: stall	extracted Operating conditions manufacturer notes 3 method manufacturer theoretical extrapolation operating point stall; not a continuous operating rating voltage v 12 Source evidence Pololu 4742 \| Stall torque @ 12V: 14 kg·cm Pololu 4742 / Stall torque @ 12V Source observed: 2026-09-08View source
Stall torqueModel-level statement	7.9 kg·cmRating: stall	extracted Operating conditions manufacturer notes 4 method manufacturer theoretical extrapolation operating point stall; not a continuous operating rating voltage v 6 Source evidence Pololu 4742 \| Stall torque @ 6V: 7.9 kg·cm Pololu 4742 / Stall torque @ 6V Source observed: 2026-09-08View source

Technical documents and resources

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