Product Details

Aichi F304 Mobile Crane (truck Crane) Slew Ring Bearing

Aichi F304 Mobile Crane (truck Crane) Slewing Bearing

Tadano Ts75m Mobile Crane (truck Crane) Slewing Ring Bearing

Tadano Ts75m Mobile Crane (truck Crane) Slewing Bearings

Specification

The Aichi F507 Mobile Crane Slew Bearing is designed for superior rotational performance and durability in heavy-duty lifting operations. Manufactured by zz Slewing Bearing, this component ensures smooth 360° rotation and stable load transfer between the upper and lower structures of the truck crane. Built from premium alloy steel and processed through advanced heat treatment and grinding, it provides excellent resistance to wear, fatigue, and extreme working conditions.

Aichi F304 Mobile Crane (truck Crane) Slew Bearing

Each bearing is precision-engineered to meet OEM standards for Aichi F507 truck cranes, offering perfect interchangeability and reliable performance during long-term use. It also features optimized gear teeth for improved torque transmission and noise reduction, ensuring safe and efficient crane operation at construction sites and port handling applications.

Aichi F303 Mobile Crane (truck Crane) Slew Bearing

Technical Highlights

Application: Aichi F507 Truck Crane
Type: Four-point contact ball slewing bearing
Rotation: 360° continuous
Material: 42CrMo / 50Mn
Gear Type: External gear
Lubrication: Grease-filled, easy maintenance
Features: High load capacity, precision ground raceway, rust-resistant coating

Frequently Asked Questions

Expert Insights and Reliable Solutions to Your Most Common Questions.

1. What types of slewing bearings does ZZ Slewing Bearing provide?

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.

2. How do I choose the right bearing for my application?

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.

3. What materials does ZZ Slewing Bearing use for slewing bearings?

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)

4. How can ZZ Slewing Bearing achieve maximum service life?

Correct installation with flat surfaces.

Proper lubrication using grease.

Avoid overloading or shock loads over capacity.

Monitor operating conditions regularly to prevent debris entry.

5. What causes abnormal noise or vibration in bearings?

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.

6. What are lead times and lifetime guarantee?

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

7. Does ZZ provide installation and technical support?

Yes — ZZ Slewing Bearing offers:

Detailed installation manuals.

Online engineering support.

Guidance for lubrication, maintenance, and troubleshooting solution.

8. How do ZZ Slewing Bearing differ from competitors?

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.

ZZ Slewing Bearing (Shanghai) Co., Ltd

Leading Slew Drive & Slewing Bearing Manufacturer in China.

ZZ products are applied globally in solar tracking systems, wind power systems, satellite communications, and numerous other globally connected industries.