The core advantage of our GLL double ball bearing scaffolding casters comes from its unique double row angular contact ball bearing structure. This design forms a three-dimensional force support system through two sets of steel balls arranged symmetrically at a 30° contact angle:
1. Double load capacity
Compared with traditional single-row bearings, the double ball structure can bear radial loads and bidirectional axial loads at the same time, and the axial load capacity is increased by more than 80%. Under complex working conditions on construction sites, the stability of the scaffolding system can be maintained even in the face of equipment eccentricity or uneven ground.
2. Zero clearance precision operation
Adopting the A-type standard design (outer diameter ≤ 90mm) and lightweight glass fiber reinforced nylon cage, the bearing temperature rise is controlled within 15℃. Actual measured data shows that under continuous working conditions of 5000 rpm, the friction coefficient is as low as 0.0012, which is 35% more energy-efficient than ordinary casters.
3. Maintenance-free sealing system
Equipped with double-sided dust covers and lithium-based grease sealing structure, it achieves IP65 protection level. Under extreme temperatures of -30℃ to 110℃, it can work continuously for 50,000 hours without additional lubrication, and the maintenance cost is reduced by 70%.
Compared with traditional scaffolding casters, our GLL double ball casters show three disruptive advantages:
Super heavy-load mobile solution
The dynamic load of a single caster is up to 3.2 tons, and the four-wheel combination can support a 12.8-ton modular scaffolding system. In the steel structure installation scenario, it can achieve smooth movement of fully loaded equipment on a slope (≤8°), which is 2.3 times more efficient than traditional casters.
Anti-overturning safety design
The rigid support characteristics of the double-row bearing increase the anti-overturning moment of the scaffolding system by 150%. GLL Building Research show that when encountering a lateral impact, the system displacement is only 40% of similar products.
All-terrain adaptability
Through preload adjustment technology (0.012mm precision control), the casters can automatically compensate for ground unevenness. On substrates such as concrete, steel plates, and gravel, the rolling resistance fluctuation value is controlled within ±5%, ensuring construction accuracy.
Application scenarios：Rapid erection and movement of building scaffolding；Positioning of industrial equipment maintenance platforms；Dynamic adjustment of warehouse logistics shelves；Temporary layout of performance stage trusses
FAQ
Q1: Does the maximum load of the double ball bearing caster include dynamic load?
A1: Yes. The SC300 model can stably carry 1200kg in dynamic movement and 1500kg in static stacking.
Q2: How to maintain the bearing to extend its life?
A2: Inject GLL special grease every 6 months to avoid aging of the seal ring caused by the use of ordinary engine oil.
Q3: Does it support non-standard customization?
A3: The wheel diameter, bracket color and run-flat tire version can be customized .
Q4: How to deal with brake system failure?
A4: Stop using it immediately and contact after-sales. GLL provides 48-hour emergency response service and free replacement of brake components during the lifetime warranty period.
