Stabdžių būgnų pirkimo vadovas
Paskutinį kartą atnaujinta: 2026 m. balandžio 24 d.
Brake drums are used on the rear axle of many vehicles, particularly smaller and older models. The drum rotates with the wheel while brake shoes press outward against its inner surface to create friction. Worn drums reduce braking efficiency and cause noise. At CarParts247 we stock brake drums from TRW, Brembo, and ABE.
Brake drum wear indicators
Drum brakes require periodic inspection as the shoes wear. Unlike disc brakes, drum wear is less visible from outside the wheel.
- Scraping or grinding noise when braking — shoe friction material worn through
- Pulsation or vibration through the brake pedal — out-of-round drum
- Handbrake requires excessive travel — shoes or self-adjuster worn
- Vehicle pulls to one side under braking — uneven shoe or drum wear
- Visible scoring or lip on the drum edge when the wheel is removed
Drum and shoe replacement
Always replace drums and shoes in axle pairs. The self-adjuster mechanism, return springs, and hold-down hardware should be inspected and replaced if worn.
- Replace drums in pairs — left and right rear together
- Fit new shoe return springs and hold-down hardware — they fatigue over time
- Check and lubricate the self-adjuster mechanism
- Clean the backing plate and apply brake grease to the shoe contact points
- Adjust the shoes before road testing — new shoes need correct initial clearance
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Rear drum brake shoes — lining materials, wear limits, self-adjusting mechanisms, and how to replace brake shoes safely.
OE numerių patikra
Dažnai užduodami klausimai
How do I know when brake drums need replacing?
Measure the internal diameter with a drum gauge. If the drum exceeds the maximum diameter stamped on it, or is scored beyond resurfacing limits, it must be replaced.
Can brake drums be resurfaced?
Yes, if the drum is within the maximum diameter limit and the wear is even. Drums with cracks, hard spots, or out-of-round condition should be replaced.
Why does my handbrake travel so far?
Most commonly, the rear brake shoes are worn or the self-adjuster is stuck. Adjust the shoes and check the handbrake cable adjustment. If the shoes are below minimum thickness, replace them.
Are rear drum brakes inferior to discs?
Drum brakes are adequate for the rear axle of lighter vehicles. They are cost-effective, provide good handbrake performance, and self-servo (amplify braking force). Many new cars still use rear drums.
Susiję gidai
ABS ir ESC įspėjamosios lemputės — rato greičio jutiklio diagnostika, impulsinio žiedo patikra ir keitimo vadovas.
Brake Fluid Buying GuideDOT 3, DOT 4, DOT 5.1 explained — dry and wet boiling points, hygroscopic ageing, and when to flush your brake fluid.
Brake Master Cylinder Buying GuideSpongy or sinking brake pedal? How to diagnose a failing brake master cylinder, bleed the system, and choose the right replacement.
Brake Shoe Set Buying GuideRear drum brake shoes — lining materials, wear limits, self-adjusting mechanisms, and how to replace brake shoes safely.
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