Slewing Ring for Construction 100-ton Excavator LQNA1815-45Z1

Overview

Developed for professional business purchasers including heavy construction equipment OEMs, aftermarket replacement parts distributors, and mining machinery service providers, this 100-ton excavator slewing bearing delivers exceptional structural stability, rotational precision, and long-term durability in high-stress working environments. With optimized gear design and industry-leading manufacturing standards, it serves as a critical core component for smooth, reliable slewing motion of large excavator upper structures under full-load and extreme working conditions.

Technical Specifications & Dimensional Parameters

Key Features & Performance Advantages

High-Standard Material & Microstructure Control

This heavy-duty construction machinery slewing ring adopts strict raw material composition control, ensuring a stable and uniform internal metal structure that resists fatigue and deformation under long-term heavy load impacts, a core advantage for large excavator applications.

Ultra-High Precision Machining

Raceway roughness reaches 1.6μm or higher, with parallelism of dual raceways controlled within ≤0.02mm, and positioning hole position accuracy controlled within φ0.3. This precision guarantees consistent rotational performance and minimizes wear during continuous heavy-duty operation.

Reliable Sealing & Full-Process Quality Assurance

The sealing strip joint adopts integral vulcanization treatment, effectively blocking dust, mud, and moisture from entering the bearing interior. We implement online measurement of hardened layer depth and raceway profile during production, ensuring 100% compliance with design specifications for every LQNA1815.45Z1 slewing ring delivered.

Applications & Compatible Equipment

Primarily designed for 100-ton crawler hydraulic excavators, this slewing bearing is also compatible with other heavy construction equipment of matching tonnage and load requirements, including large crawler cranes, mining excavators, heavy-duty material handling machinery, and large rotary drilling rigs. It is ideal for OEM production matching, aftermarket replacement, and equipment overhaul projects for heavy construction and mining machinery.

Installation, Operation & Maintenance Guidelines

Prior to installation, inspect the excavator slewing bearing for transport damage and confirm mounting surface flatness and cleanliness. Use calibrated torque wrenches to tighten mounting bolts in a cross-symmetric sequence, avoiding uneven preload. During operation, avoid sustained overload and impact loads. Perform regular lubrication with extreme-pressure lithium grease every 100 working hours, and conduct routine inspections of seal integrity, raceway wear, and bolt tightness to extend service life.

Customization & Bulk Procurement Solutions

We offer tailored solutions for commercial equipment manufacturers and bulk purchasers, including custom gear parameters, modified mounting hole layouts, upgraded material grades, and specialized surface treatments to meet unique application requirements. For bulk procurement, we provide flexible MOQ terms, prioritized production scheduling, competitive bulk pricing, and global logistics support, with dedicated technical engineers assigned to support your project from design to after-sales.

FAQs About LQNA1815.45Z1 Slewing Ring

Is this slewing ring compatible with all 100-ton crawler excavator models?

The LQNA1815.45Z1 slewing ring is engineered for mainstream 100-ton crawler hydraulic excavator models, and we can adjust mounting configurations to fit specific OEM models upon request.

What is the lead time for bulk orders?

Standard bulk orders have a lead time of 25-35 working days, with expedited production available for urgent project requirements.

Do you provide a warranty for this product?

Yes, we offer a 12-month standard warranty, with extended warranty options available for bulk procurement clients.