AC200 Crane Slewing Bearing

AC200 Crane Slewing Bearing - OEM 60614040 Replacement for Demag Terex All-Terrain Cranes

The AC200 Crane Slewing Bearing This slewing bearing is purpose-built for the Demag AC 200-1, a 200-ton class all-terrain mobile crane. The three-row roller design delivers the tilting moment capacity required for telescopic boom operations with maximum 68m boom length and 100m combined system height. This three-row roller slewing ring features an outer diameter of 2045mm, 144 external teeth, and precision-machined 42CrMo steel construction. As a direct OEM 60614040 replacement, it eliminates rotational instability during telescopic boom operations and withstands the high tilting moments generated during maximum 68m boom extensions in construction and infrastructure projects.

Technical Specifications

Crane Application & Compatibility

All-Terrain Mobile Crane Integration

The AC200 slewing bearing is purpose-built for the Demag AC 200-1, a 200-ton all-terrain mobile crane widely deployed in construction, infrastructure, and heavy lifting projects. The three-row roller design delivers exceptional tilting moment capacity required for telescopic boom operations with maximum 68m boom length and 100m combined system height.

Crane Fleet Maintenance

For crane fleet operators and service companies, replacing a worn OEM slewing ring with our aftermarket AC200 bearing offers significant cost savings without compromising performance. This direct-fit replacement eliminates the need for structural modifications — same bolt pattern, same gear mesh, same load ratings.

Compatible Models

This slewing bearing is also a direct replacement for the Terex-Demag AC 220-5 mobile crane, sharing identical mounting dimensions and gear specifications. Contact our engineering team for cross-reference verification with other Terex-Demag AC series crane models.

Engineering Features & Performance Advantages

Heavy-Duty Load Capacity

The three-row roller configuration distributes axial, radial, and moment loads across multiple roller contact points, ensuring uniform load distribution during lifting operations Extended Service Life

Our 42CrMo slewing bearing crane construction undergoes through-hardening heat treatment, achieving 55-62 HRC raceway hardness. Combined with precision grinding and wear-resistant raceway geometry, operational lifespan extends beyond 15,000 hours under standard duty cycles.

Superior Sealing Performance

Triple-lip sealing architecture blocks dust, mud, and moisture ingress in harsh job sites. This protection system is essential for port environments, tunnel construction, and desert infrastructure projects where contamination causes premature bearing failure.

Precision Manufacturing Quality

CNC vertical lathes and gear hobbing machines ensure tight dimensional control — typically within ±0.05mm for raceway roundness and ±0.02mm for mounting surface flatness per 1000mm diameter. and optimal gear mesh. High concentricity control minimizes vibration during rotation, critical for operator safety and load positioning accuracy in high-rise construction.

OEM Replacement Compatibility

As an aftermarket 60614040 slewing bearing, our product maintains exact 1:1 dimensional equivalence with original Demag specifications. Installation requires no structural modifications, reducing downtime during emergency repairs or scheduled maintenance.

Quality Assurance & Manufacturing Capability

Luoyang Heng Guan Bearing operates ISO 9001-certified production facilities equipped with large-diameter vertical lathes (up to 10,000mm turning capacity) and CNC gear hobbing machines. Every AC200 slewing bearing manufacturer product undergoes coordinate measuring machine inspection, material spectroscopy, and load distribution testing before shipment.

Our factory maintains RoHS compliance and follows strict process control from raw material forging through final assembly. With over 30 years of bearing engineering experience, we serve customers in 50+ countries including major crane fleets in Germany, Australia, South Africa, and the Middle East.

On-Site Measurement & Reverse Engineering ServiceCustom Solutions Without Original Drawings

Luoyang Heng Guan Bearing provides on-site measurement and reverse engineering services for crane operators facing discontinued AC200 Crane Slewing Bearing or missing technical documentation. Our engineering team travels to port terminals, construction sites, or mining operations with precision measurement instruments to capture critical dimensions.

Site Survey: Engineers conduct field inspection of the existing slewing bearing installation, documenting wear patterns and failure modes.

Precision Data Acquisition: We measure outer diameter, bolt hole positions, gear module, and raceway geometry using portable CMM and laser scanning equipment.

Optimized Redesign: Based on wear analysis, we implement compensatory design modifications—such as reinforced raceway profiles or upgraded sealing systems—to exceed original performance.

Manufacturing & Quality Control: Full production cycle includes forging, CNC machining, gear cutting, heat treatment, and dimensional inspection before delivery.

Installation Guidance: Our technicians provide on-site assembly support, ensuring proper bolt torque sequencing and gear mesh alignment.

Key Advantages

This service reduces equipment downtime by eliminating the wait for OEM spare parts. You receive cost-effective import substitution while maintaining—or improving—original bearing performance. The In Stock product ship within 7-15 days from stock. Custom setups take 4-6 weeks, depending on intricacy.

Installation & Technical Support

Proper Installation Procedures

Mount the AC200 crane turntable bearing using calibrated hydraulic torque wrenches to achieve specified preload. Follow star-pattern bolt tightening sequences to prevent localized stress concentrations. Verify gear mesh clearance remains within 0.3-0.6mm tolerance.

Lubrication Requirements

Under standard operating conditions, regrease every 100 hours using NLGI Grade 2 lithium-based grease. Reduce intervals to 50 hours in high-dust or marine environments. Ensure grease purge at all lubrication points to expel contaminants.

Engineering Support

Our technical team provides selection assistance, load calculation verification, and cross-reference confirmation for Demag and Terex crane models. We offer 24-hour response for urgent technical inquiries and maintain detailed installation documentation in multiple languages.

Material Strength & Durability

High-Strength Alloy Steel

42CrMo alloy steel provides superior tensile strength (1080 MPa minimum) and yield strength (930 MPa minimum) compared to standard 50Mn steel. This material choice prevents permanent deformation under shock loads during sudden boom movements or emergency stops.

Advanced Heat Treatment

Raceway surfaces undergo induction hardening to 55-62 HRC, while the core maintains 28-35 HRC toughness. Gear teeth receive surface quenching to resist wear from continuous mesh engagement over hundreds of thousands of rotation cycles.

Fatigue Resistance Design

Finite element analysis optimizes stress distribution at the raceway-to-body transition zones. This engineering approach extends fatigue life by 30% compared to conventional designs, reducing the risk of crack initiation during long-term operation.

Exhibition

We participate in well-known international exhibitions, including Shanghai International Maritime Exhibition, Mining World Russia, bauma China, CTT Russia, etc.

Partners

Your trust, we cherish in heart all times and will reciprocate that trust with unwavering quality.​​​​​​​

Packaging & shipping

Your goods are unique, and their journey should be flawless. Therefore, we offer professional and customized packaging services. Our experienced team will evaluate your goods' characteristics, transportation route, and environmental requirements to recommend the most secure solution, such as: wooden crate packaging, sturdy frame packaging, or composite reinforced packaging (wooden crate + iron frame).

FAQ

Q: Can this bearing handle shock loads during emergency stops?

A: Yes, the 42CrMo material and three-row roller design absorb impact forces without permanent deformation.

Q: What are the signs that replacement is needed?

A: Excessive axial clearance (beyond 2.5mm), metallic particles in grease samples, or abnormal vibration during rotation indicate bearing wear.

Q: Is this suitable for marine port cranes?

A: The triple-lip seal and optional anti-corrosion coating make it appropriate for salt-spray environments when properly maintained.

Q: How does your aftermarket bearing compare to OEM?

A: We maintain identical dimensions and load ratings while often providing upgraded heat treatment for extended service life.

Contact Us

Need technical specifications for the AC200 Crane Slewing Bearing (AC200 Demag Terex 60614040A) or quotation for your crane fleet? Email mia@hgb-bearing.com with your crane model and application details for fast engineering support.