Bellow Cover
Providing you the best range of teflon bellow covers with effective & timely delivery.
Teflon BELLOW COVERS
₹ 5000 / Piece Get Latest Price
| Material | Nylon |
| Usage/Application | Industrial |
| Color | Black |
| Size | 3 mm |
| Country of Origin | Made in India |
An electromagnetic disc brake is a braking device that uses electromagnetic force to control a friction disc. Essentially, it marries electrical activation (via a coil or magnet) with a friction mechanism (disc, pads) to stop or hold a rotating shaft or disc.
These brakes are often fail‑safe / spring applied — meaning braking occurs automatically when electrical power is removed (so if power fails, the brake engages). They are used for stopping, holding, or safety braking in many industrial and mechanical systems.
Key ComponentsHere are the main parts of a typical electromagnetic disc brake:
| Component | Purpose |
|---|---|
| Brake disc (rotor/friction disc) | The rotating element attached to the shaft; the part against which the brake acts to create friction. |
| Brake pad / friction lining | Mounted on either the armature or a pressure plate; contacts the disc to generate braking force. |
| Electromagnet / Coil | When energized, it produces magnetic force to move parts (e.g. attract an armature or plate) to disengage the brake, or to control the brake action. |
| Armature or pressure plate | A movable part that, under spring pressure or magnetic force, presses pad(s) against the disc to apply braking torque (or releases them). |
| Springs | For “power‑off / fail‑safe” brakes, springs push the pad(s) to contact the disc when electromagnet is de‑energized. They provide the force needed for braking in absence of power. |
| Housing / Frame / Hub / Mounting Hardware | Provides structure, mounting to machines; hub is often keyed or splined to the shaft. |
| Air gap / adjustment mechanism | To allow for correct distance between armature and disc, to compensate for wear, etc. |
| Electrical terminals & power supply | To energize the coil (DC or AC), possibly with control electronics, rectifiers or power units. |
The operation can be summarized in two major states:
-
Brake Applied (No Power / De‑energized)
In a fail‑safe design, when the electromagnet is not energized, springs push the armature/pads against the disc. The friction between pads and disc stops or holds the rotor (shaft). -
Brake Released (With Power / Energized)
When current is supplied to the coil, a magnetic field is generated. This field pulls (or otherwise moves) the armature or pressure plate, overcoming spring force. This movement separates the pad(s) from the disc, allowing the disc to rotate freely — i.e., brake is off.
Some models invert this logic (depending on design), but the “spring on, power off” fail‑safe is common for safety applications.
Product Videos
8mm Industrial Holding Brakes
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