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Brake Arm And Fork Cylinder

The brake arm is the core component of the railway vehicle braking system, usually used in conjunction with brake shoes, brake discs, etc.
Fork type hydraulic cylinders (split type hydraulic cylinders) are commonly used for lifting, positioning, or adjusting operations in railway maintenance.
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Product Overview

The brake arm/lever is a key lever component in a mechanical braking system. Its core function is to amplify and transmit the force from the brake pedal or control mechanism to the brake shoes or brake pads through leverage, causing them to contact the wheel or brake drum and generate friction, thereby slowing down or stopping the vehicle. Its form varies in different brake systems, such as the articulated brake arm used in external brakes, and the automatic adjusting arm in truck drum brakes used to automatically compensate for wear.

 

Key Features

Automatic clearance adjustment:

Through an internal worm gear mechanism, it automatically compensates for brake pad wear during braking, maintaining a constant clearance.

Improved braking performance:

Ensures short brake caliper stroke, rapid and reliable braking, provides optimal braking torque, and ensures uniform braking of all wheels.

Compact and protective structure:

The adjusting mechanism is enclosed within a housing, providing dustproof, moisture-proof, and impact-proof protection, resulting in a longer service life.

Easy and economical maintenance:

Reduces the number of manual adjustments, extends the lifespan of brake system components, and lowers material and maintenance costs.

Safety assurance:

A key safety component, preventing brake failure and improving driving safety.

 

Application Scope

Force transmission and amplification:

Transmits and amplifies the force exerted by the driver (such as pressing the brake pedal) to the braking mechanism through leverage.

Brake clearance control:

In drum brakes, the automatic brake clearance adjustment arm monitors and automatically adjusts the clearance between the brake shoes and the brake drum in real time, maintaining optimal braking performance.

Braking action:

Drives the brake pads (shoes) to open, pressing them tightly against the brake drum (disc) to generate friction, thus achieving braking.

 

FAQ

Q: How is the balance and return performance of the brake arm guaranteed?

 

A: This is the core of braking safety, and we ensure it through multiple measures:

Key hole optimization: The pin holes are machined or ground with high precision and equipped with high-quality bushings/bearings as standard, ensuring smooth rotation without jamming.

Return spring matching: Provides original equipment manufacturer (OEM) high-fatigue-life return springs to ensure rapid and complete return after brake release.

 

Q: Which brands and models of equipment/vehicles are your brake arms compatible with?

A: We manufacture a full range of brake arms, covering mainstream construction machinery.

Specific compatibility: Please provide your equipment brand, model, axle model, or original equipment manufacturer (OEM) part number, and we support verification using drawings or samples.



制动臂及叉型油缸







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Transmitting braking force

Amplify the force generated by the brake cylinder through the lever principle, push the brake shoes to press the wheels or brake discs, and achieve vehicle deceleration or parking.



                 

Adjust brake clearance

During maintenance, the clearance between the brake shoe and the wheel/brake disc can be corrected through the adjustment device of the brake arm (such as screw, pin shaft) to ensure braking efficiency.




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