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DRS 125-NA-A-47-K-X-X Wheel Block System
Description: The Demag DRS 125-NA-A-47-K-X-X is an industrial wheel block assembly belonging to the DRS wheel block system. Renowned for its modular design, the DRS system is widely utilized in cranes, transfer car, and various industrial travel mechanisms.
Category: Wheel Block System
Updatetime: 2026-04-22
Details
The Demag DRS 125-NA-A-47-K-X-X is an industrial wheel block assembly belonging to the DRS wheel block system. Renowned for its modular design, the DRS system is widely utilized in cranes, transfer car, and various industrial travel mechanisms.
Core Advantages of the DRS 125 System
1. Exceptional Load Capacity and Durability: DRS 125 features high-performance spheroidal graphite cast iron wheels. This material offers steel-like strength combined with the self-lubricating properties of cast iron. Consequently, even under frequent start-stop operating conditions, friction between the wheel flange and the rail is minimized, leading to a longer service life.
2. Modular Plug-and-Play Design: The defining feature of this model is its five-sided connection housing. It can be mounted via standard bolted holes from the top, side, or end face. This flexibility allows engineers to significantly simplify frame structures when designing automated storage systems or RGVs (Rail Guided Vehicles).
3. Precision Protective Performance: The DRS 125 wheel block utilizes a sealed design with pre-lubricated internal bearings.
4. Maintenance-Free: Under standard operating conditions, it requires almost no subsequent regreasing, significantly reducing corporate operation and maintenance costs.
Product Specification Analysis
| Category | Specification | Detailed Description |
| Wheel Block System | DRS 125 | Wheel block system, size 125 |
| Function Type | NA (Non-driven) | Idler/idler wheel; designed for load-bearing and passive rolling |
| Connection Type | A (Top connection) | Top-mounted installation for suspension or support structures |
| Flange Type | K (Double flange) | Features dual flanges for precise guidance along the rail |
| Wheel Material | GGG 70 (Spheroidal Graphite Cast Iron) | High-strength material with excellent wear resistance and damping |
| Tread Width | 47 mm | The effective contact width of the wheel tread |
| Drive Configuration | No Gearbox Considered | Not prepared for gearbox mounting; no spline shaft or drive interface |
| Accessories | Not Prepared | No pre-drilled holes or mounting positions for additional accessories |
Technical Specifications
| Type | A (mm) | B (mm) | H (mm) | K (mm) | H1 (mm) | H2 (mm) | H3 (mm) | H4 (mm) | B1 (mm) | B2 (mm) | B3 (mm) | B4 (mm) |
| DRS125 | 220 | 98 | 147.5 | 55 | 53.5 | 20 | 40 | 100 | 50 | 57.2 | - | 37.5 |
Common Application Scenarios
Given that the DRS 125-NA-A-47-K-X-X balances compact dimensions with robust load capacity, it is widely utilized in the following fields:
1. Automated Storage and Retrieval Systems (AS/RS): Serving as a core component of the lower travel mechanism for stacker cranes.
2. Crane End Carriages: Used in the travel mechanisms of light-to-medium duty bridge cranes.
3. Industrial Transfer Carts and RGVs: Providing stable support on automotive production lines or heavy-duty logistics conveyor lines.
4. Movable Architectural Structures: Such as retractable roofs or large-scale sliding doors.
Summary
The Demag DRS 125-NA-A-47-K-X-X is more than just a component; it is a guarantee for smooth industrial operations. Its precise geometric tolerances ensure high synchronicity during multi-wheel operation, effectively reducing the possibility of crabbing or skewed travel.
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