중국 슬루 베어링, 중국 슬루잉 베어링 제조업체 및 공급업체

유압 굴삭기 슬루잉 링

Hydraulic Excavator Slewing Ring: High-Performance Rotary Solutions by ZZ

At ZZ, we understand that the slewing ring is the critical "joint" of your hydraulic excavator. It is the component responsible for supporting the upper structure's weight while enabling precise 360-degree rotation under extreme load conditions. As a professional manufacturer, we engineer our hydraulic excavator slewing rings to deliver superior durability, high load capacity, and reliable performance in the harshest environments.

제품 개요

A hydraulic excavator slewing ring (also known as a swing bearing or turntable bearing) is a large-scale bearing capable of simultaneously supporting axial, radial, and tilting moment loads. Unlike standard bearings, our units are designed with integrated gearing (internal or external teeth) to interface directly with the excavator's hydraulic swing motor.
Our excavator slewing rings are manufactured using advanced metallurgy and precision machining to ensure smooth rotation and long service life, making them the preferred choice for heavy-duty construction and mining machinery.

Performance and Quality Features

We utilize a "Quality-First" manufacturing approach. Here is why ZZ slewing rings stand out in the market:
  • Superior Material Selection: We use high-grade alloy steel (such as 42CrMo or 50Mn) for the raceways and rolling elements. This ensures high hardness and deep hardening depth, providing excellent resistance against wear and deformation.
  • Advanced Heat Treatment: Our raceways undergo precise induction hardening. This process creates a hard surface layer for wear resistance while maintaining a tough core to absorb shock loads, significantly reducing the risk of spalling or cracking.
  • Robust Sealing System: Excavators often operate in mud, dust, and water. Our slewing rings feature multi-lip rubber seals (often with labyrinth designs) to prevent grease leakage and keep contaminants out, ensuring the longevity of the internal rolling elements.
  • High Load Capacity: Engineered to handle the complex dynamic loads of excavation work, our bearings offer high static and dynamic load ratings, ensuring stability even when the excavator arm is fully extended.
  • Precision Gearing: The gear teeth are hardened and ground (or precisely cut) to ensure smooth meshing with the pinion, reducing noise and vibration during the swing operation.

기술 사양

While we offer standard series, we specialize in custom engineering. Below are the general specifications for our hydraulic excavator slewing rings:
Specification Parameter 세부 사항 / 옵션
제품 유형 Hydraulic Excavator Slewing Ring / Swing Bearing
Bearing Series Single Row Four-Point Contact Ball, Double Row Ball, Crossed Roller
Material 42CrMo, 50Mn, C45 또는 맞춤형 합금강
기어 유형 외부 치형, 내부 치형 또는 무치형
롤링 요소 강구 또는 원통형 롤러
경도(레이스웨이) 55-62 HRC (유도 경화)
Sealing Material NBR (Nitrile Rubber) / Fluororubber (High Temp)
윤활 Grease Lubricated (with fittings/nipples included)
정밀도 등급 P0, P6, P5 (or per DIN/ISO standards)
윤활 Zinc Plating, Black Oxide, or Phosphating

양면 접촉 씰(고무/NBR)

Quality is not just a promise; it is a documented standard at ZZ. Our manufacturing processes and final products comply with rigorous international standards:
  • ISO 9001:2015: 인증된 품질 관리 시스템.
  • DIN / ISO Standards: Manufactured in accordance with DIN 69 120 or ISO 281 for rolling bearings.
  • Material Certificates: Full EN 10204 3.1 Material Test Certificates (MTC) provided for raw steel.
  • Traceability: Complete heat numbers and batch tracking for all critical components.

응용 분야

While our primary focus is the hydraulic excavator, the robust design of our slewing rings makes them suitable for a wide range of heavy machinery:
  1. Crawler Excavators: From mini excavators to large mining shovels (e.g., CAT, Komatsu, Hitachi, Volvo styles).
  2. Wheel Excavators: Requiring high-speed rotation capabilities.
  3. Draglines and Cranes: Where high moment loads are prevalent.
  4. Drilling Rigs: Requiring high axial load capacity.

ZZ Service and Support

당사는 단순히 베어링을 판매하는 것이 아니라 회전 솔루션을 제공합니다.
  • OEM & ODM Services: We can manufacture replacements for major excavator brands or design custom units based on your drawings.
  • Fast Lead Time: Optimized production scheduling to minimize your downtime.
  • Technical Support: Our engineering team is available to assist with installation guidelines, clearance adjustments, and failure analysis.
  • Warranty: Comprehensive warranty coverage against manufacturing defects.

당사의 조립형 턴테이블 베어링은 높은 동하중과 정밀한 위치 결정이 필요한 산업 분야에서 선호되는 선택입니다.

Q1: What is the difference between a ball type and a roller type slewing ring for an excavator?
A: Generally, ball type (four-point contact) slewing rings are lighter and allow for higher rotational speeds, making them common in standard excavators. Roller type (crossed roller or three-row roller) bearings offer higher load capacity and rigidity, making them suitable for larger, heavy-duty mining excavators.
Q2: Can you supply a slewing ring with the exact gear teeth count of my old bearing?
A: Yes. As a manufacturer, we can customize the module, number of teeth, and pressure angle to match your specific excavator model perfectly. Please provide the drawing or the sample gear measurements.
Q3: How do I maintain the slewing ring to ensure a long lifespan?
A: Regular lubrication is key. Grease the bearing every 100 working hours (or per OEM manual). Also, inspect the seals regularly for damage and check the mounting bolts for tightness to prevent loosening due to vibration.
Q4: Do you offer bolt kits for installation?
A: Yes, we can supply high-strength mounting bolts (Grade 10.9 or 12.9) specifically designed for slewing ring installation to ensure safety and reliability.
Q5: 최소 주문 수량(MOQ)은 얼마입니까?
A: For standard models, our MOQ is typically one unit. For custom-designed bearings, we can discuss specific requirements based on the project scope.