Product Details

Slew drive application areas:
1. Industrial production line:
In production lines in the industrial sector, enclosed gear slew drives are often used in applications that require high environmental requirements and require protection of gears and transmission systems.
2. Wind and solar equipment:
In the wind and solar fields, enclosed geared slew drives are commonly used in wind turbines, solar tracking systems, etc. to protect equipment from harsh weather and environmental conditions.
3. Aerospace:
In aerospace engineering, enclosed gear slew drives are widely used in mechanical transmission systems of aircraft and satellites to ensure system reliability and stability under extreme conditions.

Specification

WE-12 Slew Drive,Enclosed geared slew drives play an important role in many industrial and mechanical applications due to their advantages in protecting gears, transmission systems and the environment. In different application scenarios, engineers choose different types of slew drive systems according to specific needs to ensure efficient operation and long life of the mechanical system.. The following are the characteristics and some related information of enclosed gear slew drives:

Features:
1. Closed structure:
The enclosed gear slew drive uses a closed casing to cover the internal gears and transmission mechanisms, encapsulating the mechanical components in an external protective structure.
2. Isolation environment:
The enclosed design effectively isolates direct contact between internal mechanical components and the external environment. This helps prevent external factors such as dust, impurities, and moisture from affecting gears and transmission components.

Model	Output Torque	Tilting Moment Torque	Holding Torque	Gear Ratio	Tracking Precision	Weight	Drawing
WE12	9.5 KN.m	57 KN.m	43 KN.m	79:1	≤0.15°	61kg
WE12	7011 lbf.ft	42.1×10³ lbf.ft	32×10³ lbf.ft	79:1	≤0.15°	61kg

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.