A concrete mixer truck mixing bearing is a specialized high-load bearing designed to support the rotation of the mixer drum, ensuring smooth, stable, and efficient mixing during concrete transport. These bearings operate under heavy loads, continuous motion, and exposure to dust, moisture, and abrasive concrete mixtures, making durability and precision critical for long service life.
Applications of Concrete Mixer Truck Bearing
- Ready-Mix Concrete Delivery – Maintains smooth drum rotation during transport to prevent segregation.
- On-Site Mixing Operations – Ensures consistent blending of cement, sand, aggregate, and water.
- Infrastructure Projects – Used in mixer trucks delivering concrete for bridges, tunnels, and roads.
- Precast Concrete Plants – Integrated into transport mixers moving batches from plant to construction site.
Specifications of Concrete Mixer Truck Bearing
| Specification | Details |
|---|---|
| Material | High-quality chrome steel with heat treatment for wear resistance. |
| Bearing Type | Spherical roller bearing or double-row taper roller bearing. |
| Inner Diameter | Common sizes: 180 mm, 200 mm, 220 mm (varies by truck model). |
| Load Capacity | Designed for high radial and axial loads under continuous rotation. |
| Sealing System | Double-lip or triple-lip seals to keep out dust and slurry. |
| Lubrication | Grease-lubricated for extended maintenance intervals. |
| Compatibility | Fits major brands like SANY, Zoomlion, Schwing Stetter, and Putzmeister mixer trucks. |
Q&A – Common Buyer Questions
Q1: What is the role of a mixing bearing in a concrete mixer truck?
A: It supports the drum and allows smooth, controlled rotation while carrying heavy concrete loads, ensuring uniform mixing.
Q2: How often should mixing bearings be replaced?
A: With proper lubrication and sealing, bearings can last several years. Replacement is needed if excessive noise, vibration, or drum instability occurs.
Q3: Can I use a generic bearing in a mixer truck?
A: It’s not recommended—using non-specified bearings may reduce performance and lifespan. Always match size and load capacity to the truck model.
Q4: What are signs of bearing failure?
A: Grinding noises, overheating, uneven drum rotation, or visible wear on the bearing housing.
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