Product Details

Tadano TS70M Mobile Crane (Truck Crane) Slew Bearing

High-quality slewing bearing for Tadano TS70M mobile crane, designed and manufactured by zz Slewing Bearing. Made from premium alloy steel with precision machining and heat treatment. Ensures smooth rotation, high load capacity, and long service life. Available in both external and internal gear types.

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Specification

The Tadano TS70M mobile crane slew bearing is an essential component that ensures smooth rotation and stable lifting for truck cranes. Manufactured by zz Slewing Bearing, this precision-engineered part is specifically designed to fit the Tadano TS70M model, guaranteeing reliable performance under demanding working conditions.

Aichi F507 Mobile Crane (truck Crane) Slew Ring Bearing

Aichi F507 Mobile Crane (truck Crane) Slew Ring Bearing

zz Slewing Bearing offers custom replacement slew bearings for Tadano mobile cranes, with both external and internal gear types available. Each bearing is made of premium 42CrMo or 50Mn alloy steel, processed through advanced forging, heat treatment, and precision machining to achieve outstanding hardness, wear resistance, and long service life.

Before delivery, every Tadano TS70M slewing ring undergoes comprehensive testing for raceway hardness, gear accuracy, and dimensional precision to ensure safety and stability during heavy lifting and rotation operations. This bearing is capable of handling large axial and radial loads, as well as high overturning moments, which makes it ideal for mobile crane rotation systems.

Tadano Ts75m Mobile Crane (truck Crane) Slew Bearing

Tadano Ts75m Mobile Crane (truck Crane) Slew Bearing

zz also provides customized sealing solutions for harsh environments such as construction sites and coastal areas, as well as pre-lubricated versions for faster installation and minimal maintenance.

With years of manufacturing experience and strict ISO 9001 quality management, zz Slewing Bearing has earned a strong reputation as a trusted supplier for construction machinery manufacturers worldwide. Our products are widely applied in truck cranes, port cranes, wind turbines, and excavators, providing long-term reliability and cost efficiency.

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Frequently Asked Questions

Expert Insights and Reliable Solutions to Your Most Common Questions.

ZZ Slewing Bearing 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 ZZ 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.

ZZ engineers provide professional selection guidance according to your equipment and drawings.

ZZ Slewing Bearing 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 ZZ 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 — ZZ Slewing Bearing 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.