Slewing Drive

Description

Introduction to Planetary Gear Slewing Reducer：

1. High Torque Density, Strong Heavy-load Capacity

2. Compact Structure & Small Size, Wide Installation Adaptability

3. Multi-tooth Meshing & Anti-impact, Durable for Harsh Working Conditions

4. High Transmission Efficiency & Low Heat, Energy-saving & Fuel-efficient

5. Integrated Sealing & Maintenance-free, Longer Service Life

Core Parameters：

Type: Planetary Gear Slewing Reducer

Application: 12–16 ton truck-mounted crane

Gear Ratio: ≈ 1:27～1:30

Output Torque: ≈ 12,000–15,000 N·m

Matched Motor: 6K–8K series hydraulic motor

Installation: Upper flange (motor side) + Lower flange (turntable side)

Weight: ≈ 130 kg

Structural Diagram (Internal Sketch)：		Installation Dimensions (Key Data)：
Upper layer:	Hydraulic motor interface + Brake	Upper flange (motor side):	Φ200～220mm, 8–10 bolt holes
Middle layer:	Two-stage planetary gear (sun gear + planetary gear + internal gear ring)	Lower flange (turntable side):	Φ300～320mm, 12 bolt holes
Lower layer:	Output shaft + External gear ring (meshing with slewing bearing)	Overall height:	≈ 450–500mm
Sealing:	Multiple oil seals + Labyrinth seal	Output gear:	Module m=8–9, external gear
Installation:	Fixed by upper and lower flange bolts

Single Stage Worm Gear Slew Reducer：

1. Self-locking design, effectively prevent slewing slipping for higher safety

2. Compact size and light weight, saving installation space

3. Simple structure, cost-effective price and low maintenance cost

4. Smooth transmission with low noise (≤65dB)

5. Strong compatibility, widely applicable for 8-ton truck-mounted cranes

Core Performance Parameters：
Rated Output Torque:	48–55 N·m (Ratio i=50)
Single-stage Gear Ratio:	10/20/30/40/50/60/80/100 (Standard: 50)
Input Speed:	≤1450 r/min (Motor Side
Output Speed:	29 r/min (i=50
Transmission Efficiency:	65%–75% (Typical for Worm Gear Reducer)
Self-locking Performance:	Bidirectional self-locking (Worm lead angle < friction angle, anti-slewing slipping)
Operating Temperature:	Temperature: -20℃～+60℃
Lubrication Method:	Oil bath lubrication (Gear Oil #460)

Structure & Material		Installation Dimensions (mm)
Housing:	Cast iron / Aluminum alloy, anti-corrosion and excellent heat dissipation	Center distance:	50
Worm shaft:	20CrMnTi, quenched hardness HRC58–62, hardened tooth surface	Input shaft diameter:	φ14, keyway 5×5
Worm gear:	Tin bronze ZCuSn10Pb1, wear-resistant and impact-resistant	Output flange:	φ120, 4×M10 mounting holes, pitch circle φ95
Bearing:	Deep groove ball bearing / Tapered roller bearing	Overall dimension:	Length 121 × Width 85 × Height 144 (without flange)
Sealing:	Double-lip oil seal + O-ring, waterproof and dustproof	Weight:	Approximately 3.5 kg

Our company specializes in supplying a full range of slewing reducers and hydraulic motors for truck-mounted cranes, including planetary reducers, cycloidal reducers and worm gear reducers. We also provide complete internal spare parts such as gears, bearings, oil seals and housings, to meet your demands for equipment replacement and maintenance in one stop.

With professional industry knowledge and reliable product quality, we are always committed to solving all your technical and supporting problems efficiently. Thank you for choosing us. We will serve you with sincerity and professionalism to create long-term stable cooperation.

FAQ

• Q

  How do you guarantee the quality of your crane accessories?

  A

  We have a strict quality certification system. Every product undergoes quality inspection and is inspected again before packaging.

• Q

  Do you provide free samples?

  A

  Our samples require a fee, but this fee will be refunded when you place a bulk order.

• Q

  Do you support customization services?

  A

  We support customization services. We have professional engineers who will design specifically for your machine based on its specific requirements.

• Q

  What if I don't have the crane accessory model I want?

  A

  You can contact us directly via email or WhatsApp. Our experienced marketing manager will provide you with the information you need.

• Q

  What is the typical delivery time?

  A

  It depends on the specific product. Small batches generally take about 10 days, and large batches generally take about 20 days.