Description
Stator Current-Collecting Spring Rings Ø11–12 mm (Set of 2)
A set of current-collecting spring rings (stator contact springs) with an inner diameter of 11–12 mm is designed to ensure stable and tight electrical contact in the switching units of the stator winding with the brush holders of power tools. The spiral spring design effectively dampens vibration loads, preventing sparking and burning of current-carrying contacts during motor operation.
Key Advantages and Features:
- Reliable Crimp Lock: Each ring is equipped with a built-in metal contact sleeve (lock) for fast and secure connection to the stator wire.
- High Conductivity and Elasticity: Made of a special copper-plated spring alloy resistant to heat, oxidation, and regular mechanical deformation.
- Stable Current Transmission: The spring shape ensures constant pressure around the entire circumference of the mounting seat, eliminating contact loss under load.
Compatibility and Application:
Used in rotary and stationary stator switching units of corded power tools from various brands (Makita, Bosch, DeWalt, Interskol, Dnipro-M, DWT, Sturm, etc.):
- Compact rotary hammers and demolition hammers.
- Small-sized angle grinders (grinders / USHM for 115–125 mm discs).
- Corded drills, rotary tools, screwdrivers, and mixers.
Technical Specifications:
| Parameter | Value / Specification |
|---|---|
| Part type | Current-collecting rings / stator contact springs |
| Inner diameter (uncompressed) | 11 – 12 mm |
| Spring thickness | 3 mm |
| Contact connection type | Metal crimp sleeve (lock) |
| Purpose | Switching stator outputs with brush holders |
| Material | Copper-plated conductive spring alloy |
Package Includes:
- Stator current-collecting spring rings Ø11-12 mm — 2 pcs (pair)
Pro Tip: Before installing new current-collecting rings, thoroughly clean the plastic mounting sleeve and contact group from carbon dust and soot. When connecting the wire to the sleeve lock, crimp it with a crimper or pliers, soldering the connection if necessary to prevent heating.
