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Comprehensive Field Installation Guides & Long-term Maintenance Protocols
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End-to-End Technical Assistance: From Product Selection to On-Site Optimization
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Download
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1997 slewing bearing standard manual
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1,319KB
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JB-T 2300-2018 SLEWING BERAING ENGLISH VERSION
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5,413KB
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Material test certificate MTC
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703KB
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SLEW DRIVE SELECTION TABLE
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185KB
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Three rows roller bearing of external teeth English
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49KB
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Опросный лист FDON MANUFACTURING SLEWING RING SELECTION
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551KB
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Comprehensive 12-Month Warranty & After-Sales Support
A robust one-year quality assurance program featuring full-coverage component replacement at zero cost, ensuring operational continuity and long-term project reliability.
How to Quickly Find a Replacement Slewing Bearing for Your Crane
Table of contents Model Finder Slewing Bearing Model Finder Filter 463 catalog specifications by dimension. Results u
Cross Roller vs Four Point Contact Slewing Bearing: Which to Choose?
Table of contents When engineering heavy machinery, selecting the right rotational joint is crucial for long-term rel
Slewing Bearing in a Crane: Function, Types, and What Can Go Wrong
Table of contents Every time a crane rotates its upper structure to position a load, one component is quietly carryin
Frequently Asked Questions
Expert Insights and Reliable Solutions to Your Most Common Questions.
FDON GROUP supplies a full range of slewing bearings to meet different industrial needs:
- Single row four point contact slewing bearings Application: medium loads, precise rotation.
- Double row ball bearings Application: higher radial and axial loads.
- Cross roller bearings –Application: high rigidity, suitable for robots and machining centers.
- Three row roller bearings – Application: extreme loads in heavy equipment.
- Ball combine roller bearings –Application: precise rotational adjustment applications.
- Customized bearings – tailored for specific equipment requirements.
Typical selection parameter for FDON clients:
Load type: axial, radial, and tilting moment.
Rotation RPM: ensures long service life.
Installation space & mounting dimensions: inner/outer ring diameter, bolt circle.
Precision & rigidity requirements: critical for cranes, excavators, and robots.
FDON engineers provide professional selection guidance according to your equipment and drawings.
FDON GROUP selects materials for strength, wear resistance, and long-term durability:
Slewing ring: 42CrMo, 50Mn, C45N, 40CrNiMo, C48E.
Special forging spare parts: carburized/hardened steels for gear teeth (20CrMnTi, 18CrNiMo7‑6).
Corrosion resistant: SS 304, 316L, duplex stainless steel.
Surface treatments: heat treatment, quenching, carburizing, induction hardening, and surface coating(Four-Layer Packing, Strong Anti-Rust Oil, Black Oxide Treatment, Jet Black Paint Finish, Hot-Dip Galvanizing (CGL), Electro-Galvanizing (EGL), Hot-Dip Galvanizing + Paint Finish)
Correct installation with flat surfaces.
Proper lubrication using grease.
Avoid overloading or shock loads over capacity.
Monitor operating conditions regularly to prevent debris entry.
Typical factors observed by FDON engineers:
- Insufficient or incorrect lubrication.
- (dust, metal particles) in raceways.
- Rolling element or track damage.
- Uneven mounting surfaces or misalignment.
- Incorrect bolt torque(below grade 8.8) or preloading.
In-stock: 3–7 days.
Custom: 2–6 weeks depending on size, load, and precision.
Warranty: 1 year
Lifetime Free Spare Parts: Glue, seals, steel ball
Yes — FDON GROUP offers:
Detailed installation manuals.
Online engineering support.
Guidance for lubrication, maintenance, and troubleshooting solution.
Full range of materials and heat treatments for various load conditions.
High precision and strict quality inspection standards.
Engineering support before and after delivery.
Customization to exact equipment requirements.
Proven performance in cranes, excavators, robotics, wind turbines, and heavy machinery etc.