131.40.1600 Slewing Bearing

131.40.1600 Slewing Bearing – Three-Row Roller Design for Heavy-Duty Crane Rotation

The 131.40.1600 Slewing Bearing is a precision-engineered three-row roller slewing bearing designed for heavy rotational loads in industrial excavator. With a 1600 mm pitch diameter and 40 mm cylindrical rollers, this bearing supports axial, radial, and moment loads simultaneously through three independent raceway rows. Manufactured to JB/T 2300-2011 standards, it serves as the primary rotary joint in 50–150 ton truck cranes, crawler cranes, and port handling equipment. Heng Guan Bearing's implementation utilizes 42CrMo forged steel with induction-hardened raceways (55–62 HRC) to ensure durability under cyclic stress and abrasive operating conditions.

Product Overview

The product belongs to the 13 Series three-row roller family, specifically developed for applications where compact envelope and high load capacity converge. Unlike ball-type slewing rings that rely on point contact, this three row roller slewing bearing employs line contact mechanics across all three rows. Two axial rows absorb upward and downward thrust, while the radial row handles tilting moments and horizontal forces. This separated load-path architecture prevents stress concentration and extends service life in demanding duty cycles.

Your equipment benefits from this design in several ways: reduced structural deflection under peak loads, simplified mounting interfaces that eliminate complex kingpost assemblies, and modular gear options that integrate directly with pinion drives. The bearing is furnished as an external gear slewing ring, allowing the drive motor to remain outside the load envelope—a critical feature for truck cranes and mobile equipment where space is constrained.

13 Series Three Row Roller Slewing Bearing 1600mm

Primary Applications

Element 1: 131.40.1600/132.40.1600 External-Gear Crane & Heavy-Duty Equipment

1. 1.Truck Crane: 50–100 ton hydraulic truck cranes typically have a 1600 mm diameter. While the external gear meshes with a pinion on the slewing motor, the truck crane turntable bearing distributes the upper-structure weight, boom load, and dynamic slewing force to the chassis.

2. 2.Mobile/All-Terrain Crane: Rough-terrain cranes generate significant moment loads on uneven ground. Three-row designs absorb tilting forces without raceway deformation.

3. For upper-structure rotation, large lattice-boom crawler cranes for bridge installation and industrial construction use this bearing system, which avoids boom misalignment.

4. 4. Port Crane / Harbor Crane: Container terminal gantry and luffing cranes employ the 131.40.1600 for pedestal rotation, managing continuous duty cycles and seawater exposure with anti-corrosion coatings.

5. 5. Ship Deck Crane: Wave-induced shock loads necessitate corrosion-resistant seals and gear tooth coatings on bulk carriers and offshore supply vessels' cargo cranes.

6. 6. Railroad Crane: Compact axial height allows track-mounted rescue and maintenance cranes to pass above catenary systems.

7. 7. Material Handler: Recycling yard scrap handlers and wood cranes use abrasive dust and high-frequency starts and stops, but hardened raceways and strong sealing avoid premature wear.

8. 8.Mining Excavator: The radial roller row distributes shock loads from electric rope and hydraulic mining shovels over the raceway length, preventing point-load damage.

9. In boom-reclaimer rotation, coal, iron ore, and grain terminals employ these bearings for lengthy relubrication intervals due to low-speed operation and dust.

Element 2: 133.40.1600 /134.40.1600 Internal-Gear & Compact Excavator

Externally geared 131.40.1600 Slewing Bearings may be designed with internal gears for space-constrained applications. To maintain undercarriage clearance, excavators, small crawler cranes, aerial work platforms, and rotary drilling rigs use internal gears. Tower, ship, and floating cranes use three-row principles for high-moment capacity. Heng Guan Bearing provides exterior and internal variants within the same diameter class for various mounting needs.

Element 3: 130.40.1600 Gearless & Custom OEM Integration

Welding positioners, rotary indexing tables, steel mill ladle turrets, and radar antenna mounts use the bearing without a gear and external servo drives or hydraulic motors. Sometimes wind turbine yaw systems employ gearless three-row slewing bearings when decoupled. Heng Guan Bearing, an OEM slewing bearing manufacturer, enables bespoke integration projects where you supply the drive system and we provide the bearing interface to match your mounting pattern and load envelope.

Engineering Advantages

1. 1.High load density: Three-row line contact provides more axial and moment capacity per unit diameter than single-row ball bearings.

2. 2. Reduced Deflection: Split axial and radial load channels ensure geometric correctness under peak loads for crane boom and excavator arm placement.

3. 3. Simpler Mounting: Integrated external gear removes ring gears and mounting flanges, simplifying and lightening assembly.

4. 4. Extended Service Life: Cyclic loading rolling contact fatigue and surface pitting are prevented by induction-hardened 42CrMo raceways.

5. In dusty, damp, or marine environments, multi-lip NBR or Viton seals retain lithium-based grease and reject pollutants.

6. Compliance: ISO 9001-certified and JB/T 2300-2011-compliant, guaranteeing dimensional interchangeability and quality traceability.

Quality Control & Standards

Every product is spectrographically verified for chemical composition (C, Mn, Cr, Mo). Ultrasonic Testing (UT) finds internal forging voids, whereas MPI finds gear tooth and raceway micro-cracks. ECD profiling shows that induction hardening penetrates enough to accommodate roller contact loads without spalling. For pinion mesh compatibility, dimensional metrology measures radial and axial runout, tipping clearance, and gear span. All procedures are recorded for traceability and meet JB/T 2300-2011 slewing ring and ISO certification standards.

Heavy-Duty Slewing Ring Replacement

When planning a heavy duty slewing ring replacement, consider these steps:

1. 1. Measure pitch diameter, mounting-hole design, gear tooth count, and axial height.

2. 2. Record peak loads, duty cycle, and excessive wear or noise.

3. 3. Choose Upgrade Path: Heng Guan Bearing offers drop-in replacements or material/hardness upgrades for longer life.

4. 4. Check Interface Compatibility: Align bolt-holes, seal grooves, and pinion modules to minimize retrofit issues.

5. Plan Downtime: In-stock products ship within 7–15 days. Custom configurations take 4–6 weeks, depending on complexity.

Installation drawings, torque requirements, and lubrication schedules from our engineering team expedite your replacement process and save machine downtime.

Certification

FAQ

Q1: Is the product marine-compatible?

A: Yes, use zinc-nickel coating or anti-corrosion paint and Viton seals for seawater resistance.

Q2: What is the recommended relubrication interval?

A: Every 100–200 operating hours under normal circumstances, 50 hours in dusty or high-load settings.

Q3: Can you match pinions and mounting hardware?

A: Heng Guan Bearing makes rotary joint packages including pinions, nuts, and spacers.

Q4: Do non-standard mounting patterns allow dimensional customization?

A: Absolutely. Share your 3D design or bearing measurements and we'll estimate a tailored solution within 48 hours.

Contact Us

For 131.40.1600 Slewing Bearing technical datasheets, load-rating calculations, or sample requests, contact our engineering team at mia@hgb-bearing.com. Bookmark this page for future reference, download CAD files for integration, and confirm mounting details before placing your order.