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Slewing Bearing Model Finder
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Slewing Bearing Model Finder

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Need a crane slewing bearing replacement but don’t have the exact part number?

FDON has helped 1,000+ customers find replacement slewing bearings for cranes and heavy equipment.

Send us the approximate dimensions, crane model, or even a few photos.

Slewing Bearing Machining

Our engineers will give you an initial matching result within 1 hour.

Just Answer These 5 Questions

What is the crane brand and model?

For example:

  • Tadano
  • Kato
  • Liebherr
  • Grove
  • Terex
  • Kobelco
  • XCMG
  • Zoomlion

The crane model is often enough for us to start searching for the original slewing bearing specification.

Do you have the original bearing part number or nameplate?

Replacement Slewing Bearing For Your Crane

Send us:

  • OEM part number
  • Bearing model
  • Nameplate photo
  • Any numbers stamped on the bearing

Even an incomplete number can help us identify the correct replacement.

Can you send photos of both sides and the gear teeth?

Please take clear photos of:

  • Top side
  • Bottom side
  • Inner ring
  • Outer ring
  • Gear teeth
  • Mounting holes

Photos help us identify whether the bearing is:

  • Internal gear
  • External gear
  • Gearless
  • Single-row ball
  • Double-row ball
  • Roller type

Do you have the drawing or dimensions?

A drawing is best.

If no drawing is available, please provide the approximate:

  • Outer diameter
  • Inner diameter
  • Total height
  • Inner and outer mounting holes
  • Gear teeth quantity

Approximate dimensions are enough for the first check.

Has the old slewing bearing already been removed?

If yes, replacement becomes much easier.

We can reverse-engineer the old bearing from:

  • Photos
  • Measurements
  • Worn bearing samples
  • Installation dimensions

Even when the original drawing is unavailable, FDON can help reconstruct the required bearing.

No Drawing? No Part Number? Still Possible.

You do not need complete technical information before contacting us.

Send us what you have:

Crane model + photos + approximate dimensions.

FDON will check the structure and possible replacement first.

Send your slewing bearing information today.
Our engineers will normally provide the first matching feedback within 1 hour.

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.

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