2000mm slewing bearing price manufacturers

When sourcing a large-diameter bearing like a 2000mm model, you must prioritize load capacity (axial, radial, and tilting moment). Ensure the raceway hardness reaches 55-62 HRC and the depth of the hardened layer meets international standards to prevent premature fatigue. Additionally, specify the gear type (internal, external, or gearless) and ensure the module and number of teeth align with your driving pinion to avoid transmission failure.

High-quality 2000mm slewing bearings typically use 50Mn or 42CrMo alloy steel. For heavy-duty applications like cranes or excavators, 42CrMo is preferred due to its superior toughness. You should verify that the supplier performs quenching and tempering on the ring blanks and induction hardening on the raceways. Request a Material Test Report (MTR) to confirm chemical composition and mechanical properties.

The manufacturer should hold ISO 9001:2015 for quality management. For specific industries, look for API 2C (offshore cranes), CE marking (European machinery safety), or classification society certifications such as DNV, ABS, or LR if the bearing is for marine use. Ensure the product undergoes Non-Destructive Testing (NDT), specifically Ultrasonic Testing (UT) and Magnetic Particle Inspection (MPI), to detect internal flaws.

For a 2000mm bearing, the sealing system is critical to prevent the ingress of dust and moisture. Ensure the supplier uses high-quality Nitrile rubber (NBR) or Viton seals for high-temperature environments. A multi-lip seal design is recommended for outdoor or harsh industrial environments to retain lubrication and extend the Mean Time Between Failures (MTBF).

Due to the high cost and weight of a 2000mm bearing, returns are logistically difficult. You should mandate a Pre-Shipment Inspection (PSI) by a third party like SGS or Intertek. Specifically, request a dimensional inspection report to ensure the mounting holes and diameters have a tolerance within ±0.5mm to ±1mm as per your technical drawings.

Price for 2000mm bearings is heavily influenced by raw material indices (steel prices). Negotiate a formula-based pricing if you have recurring needs. For payment, use Letter of Credit (L/C) or Escrow services provided by reputable platforms like Made-in-China.com to ensure funds are only released upon proof of shipment and quality compliance.

A 2000mm bearing requires specialized export packaging, typically a fumigated wooden crate with the bearing laid flat and secured to prevent shifting. It must be coated with anti-rust oil and wrapped in VCI (Volatile Corrosion Inhibitor) film. Ensure the shipping terms (Incoterms) clearly define who bears the risk for Oversized Cargo (OOG) handling fees at the port of entry.

Focus on suppliers listed as Audited Suppliers on Made-in-China.com. Check their factory floor area, specialized CNC vertical lathes, and gear hobbing capacity. A manufacturer capable of producing 2000mm bearings should have at least a 2.5m or 3m CNC vertical lathe. Request a video audit of their testing laboratory to confirm they can perform hardness and torque tests in-house.