Zipper Door Fittings, Wear-Resistant Soft Rubber, Silent Pulley, PU Polyurethane Lagging Guide
The core applications of 608 bearings in fast zipper doors are as follows
1. Dual-axis precise guidance
Symmetrically distributed bearings roll along the guide rails, like train wheels and rails engaged
Ensure that the rapid movement of the door body 2-3 meters per second is not offset, and the error is <2mm
2. Composite load-bearing structure
The outer rubber cushions shocks
Embedded chrome steel bearings for load-bearing up to 150 kg per wheel
The stress-dispersing design increases the service life by 3 times
3. Silent speed improvement system
Precision balls reduce frictional resistance by 60%.
Nylon cages reduce metal contact noise
With the inverter motor, the opening and closing speed of 0.8 seconds/m² can be realized
Product images and product dimensions




Q1: What is the role of wear-resistant soft rubber in zipper door fittings?
A1: Wear-resistant soft rubber is mainly used for sealing strips and cushioning pads, effectively reducing friction and noise during door operation while enhancing sealing performance to prevent dust and rainwater infiltration, extending the door’s lifespan.
Q2: How do silent pulleys improve the user experience of zipper doors?
A2: Silent pulleys feature high-precision bearings and low-friction materials, ensuring smooth and noiseless door movement, making them ideal for noise-sensitive environments like hospitals, offices, and residential areas.
Q3: What are the advantages of PU polyurethane lagging guides?
A3: PU polyurethane lagging guides offer wear resistance, corrosion resistance, and impact resistance, reducing guide rail wear, minimizing maintenance needs, and ensuring long-term smooth door operation.
Q4: Why are roller bearings important in zipper door fittings?
A4: Roller bearings significantly reduce friction resistance, making door opening and closing easier and more flexible while enhancing the durability of fittings, suitable for high-frequency industrial or commercial doors.
Q5: How to choose the right zipper door fittings?
A5: Consider door type, usage frequency, and environment:
High-frequency use: Prioritize roller bearings and PU polyurethane guides.
Quiet operation needs: Opt for silent pulleys and wear-resistant rubber seals.
Harsh environments: Focus on corrosion-resistant and waterproof fittings.
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