---
publication_id: "OT-2026-000002912"
title: "Power tool with compact motor assembly"
published_at: "2026-09-15T19:16:06.205936Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000002912"
categories:
  - "tools-tooling/clamping-tools"
keywords:
  - "b25b21/02"
  - "b25b21/02"
  - "b25f5/001"
  - "b25b21/00"
  - "b25b21/002"
  - "b25b21/002"
---

# Power tool with compact motor assembly

## Abstract

A power tool includes a housing and a brushless motor with a rotor and a stator assembly. The motor defines a motor envelope bounded by a rear plane at a rearmost point of the stator assembly and rotor, a front plane at a frontmost point of the stator assembly and rotor, and a generally cylindrical boundary surrounding a radially outermost portion of the stator assembly and rotor. A rotor shaft is rotatably driven by the rotor. A transmission includes an input member rotatably driven by the rotor shaft and an output member. A first bearing supporting the rotor shaft is at least partially received within the motor envelope. A second bearing supporting the rotor shaft or a component of the transmission is at least partially received within the motor envelope. A support plate supporting a component of the transmission may be at least partially received within the motor envelope.