131.25.1600.001.04.03F1 slewing bearing 1760×1821.6mm
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131.25.1600.001.04.03F1 slewing bearing 1760×1821.6mm
Can the 131.25.1600.001.04.03F1 CRANE QY-80/100T handle high overturning moments during rapid boom deceleration?
Yes. This slewing ring is engineered specifically for the dynamic duty cycles found in QY-series mobile cranes. When the boom swings under load and stops abruptly, the resulting inertial forces place extreme demands on the rotation mechanism. This unit maintains structural stability under combined radial, axial, and tilting moments, ensuring safe operation during critical lift maneuvers.
At a glance
- Parameter: Specification
- Model Number: 131.25.1600.001.04.03F1 CRANE QY-80/100T
- Bearing Type: Crane slewing ring
- Inside Diameter: 1760 mm
Application Profile and Load Environment
This component targets heavy-duty lifting machinery where precise slewing control is paramount. Operators frequently encounter scenarios where the slewing platform supports asymmetric loads, such as a jib attachment or extended boom radius. The design accommodates these conditions while resisting skidding and excessive deformation.
For engineers assessing replacement parts or new builds, reviewing our full Crane slewing ring bearings category reveals similar designs optimized for varying machine weights and duty classifications. The material selection and heat treatment protocols for this model ensure durability against the vibration and shock loads inherent to construction equipment.
Geometric Constraints and Interface Verification
Before procurement, dimensional validation is non-negotiable. The boundary dimensions define the physical envelope and mounting constraints. Any deviation in the inside diameter affects the mast fit, while the outside diameter dictates the pedestal or turret interface. The cross-section width influences the moment capacity and skew resistance.
Ensure your assembly drawings match these tolerances exactly. Even minor discrepancies in flange hole spacing or surface finish specifications can lead to binding or premature wear. The following table confirms the nominal parameters for this designation:
| Parameter | Specification |
|---|---|
| Model Number | 131.25.1600.001.04.03F1 CRANE QY-80/100T |
| Bearing Type | Crane slewing ring |
| Inside Diameter | 1760 mm |
| Outside Diameter | 1821.6 mm |
| Thickness / Width | 160 mm |
| Weight | 530 kg |
| Reference Number | 131.25.1600.001.04.03F1 |
Structural Capacity of the 160mm Section
The 160 mm width represents a calculated balance between compactness and load rating. A narrower profile would reduce the lever arm for moment absorption, increasing contact stress in the rolling element-raceway interface. Conversely, a thicker section adds weight and cost without proportional benefit for this class of crane.
Four-point contact architecture allows this ring to handle simultaneous multi-directional loads efficiently. This configuration is typical for slewing bearings where overturning moments dominate over pure thrust or radial loads. Proper preload adjustment during installation is essential to maintain the intended contact angle and prevent micro-motion that leads to fretting corrosion.
Critical Pre-Purchase Audit Checklist
Engineers specifying the bearing number reference database should verify functional compatibility beyond mere dimensions. Cross-referencing the original design intent helps identify hidden requirements such as gear modules or seal types.
Perform these checks before finalizing the order:
- Confirm the gear tooth profile and module match the existing drive pinion.
- Inspect sealing interfaces for contamination ingress points; ensure groove diameters align with supplier catalogs.
- Validate the lubrication port positions against the crane’s centralized grease system.
- Assess the housing stiffness to ensure it prevents distortion under maximum working loads.
- Verify the number of mounting bolts and their grade strength requirements.
Sourcing and Technical Support
Procuring the FIJ Bearing 131.25.1600.001.04.03F1 CRANE QY-80/100T requires attention to manufacturing standards. We adhere to international tolerances for bore size, runout, and hardness. Documentation including test reports and material certifications accompanies every shipment to support quality audits.
If your operational environment involves abrasive dust or corrosive atmospheres, discuss specialized coating or enhanced seal options with our engineering team. Tailoring the solution to site-specific conditions extends service life and reduces maintenance downtime.
Request a quote for the 131.25.1600.001.04.03F1 CRANE QY-80/100T bearing. Our sales engineers provide rapid responses with competitive pricing and delivery schedules tailored to project timelines.