China ZQ, JZQ Cylindrical Gearbox Speed Reducer - Top Suppliers & Factory for Industrial Applications
⚙️ Product Features
1
The reducer is used for both forward and reverse operation.
2
The reducer has nine types of transmission ratios, nine configuration types and three low-speed shaft types.
3
The transmission ratios of this type of reducer are:
48.57
40.17
31.5
23.34
20.49
15.75
12.64
10.35
8.23
4
The extended model can achieve a larger transmission ratio by adding a high-speed stage:
317.28
291.19
243.86
223.80
191.22
163.38
141.73
121.10
92.21
81.70
65.54
📋 Conditions of Use
⚡
Gear Speed
The circumferential speed of the gear transmission shall not exceed 10 m/s.
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High-Speed Shaft
The rotational speed of the high-speed shaft shall not exceed 1,500 RPM.
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Operating Temperature
Working environment temperature ranges from -40°C to +40°C.
🔧 Maintenance
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1. Regularly Check the Oil Level
Check the oil level once a month or every 500 hours of operation to ensure it is within the specified range.
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2. Regularly Change the Lubricating Oil
(1) First Oil Change: Carry out the first oil change 36 hours after the first operation to remove metal shavings produced during the running-in period.
(2) Subsequent Oil Change: Replace lubricating oil every 2,000 to 5,000 hours of operation or every 6 to 12 months, depending on working environment and load conditions. In harsh environments (high temperatures, much dust, continuous heavy loads), shorten the oil change cycle.
(3) Oil Change Method: When the reducer is still warm (lubricating oil has good fluidity), drain the old oil and add new oil to the specified oil level.
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3. Keep Clean & Ensure Vent Cap is Unobstructed
Regularly clean oil stains and dust on the surface of the reducer, and inspect and clean the vent cap to prevent blockage.
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4. Fastening Inspection
Regularly check whether all installation bolts and connecting parts are loose.
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5. Abnormal Situation Handling
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Once a sudden increase in noise, intensified vibration, abnormal temperature rise, or severe oil leakage is detected, stop the machine immediately for inspection. Operation can only resume after the fault has been eliminated.
🖼️ Detail Pictures
❓ Frequently Asked Questions (FAQ)
Q1
What transmission ratios are available for the ZQ/JZQ reducer?
The standard model offers nine transmission ratios: 48.57, 40.17, 31.5, 23.34, 20.49, 15.75, 12.64, 10.35, and 8.23. The extended model can achieve even larger ratios (up to 317.28) by adding a high-speed stage.
Q2
Can the ZQ/JZQ reducer be used for both forward and reverse operation?
Yes. The reducer is designed to support both forward and reverse operation, making it suitable for a wide range of industrial applications that require bidirectional power transmission.
Q3
What is the maximum allowable rotational speed for the high-speed shaft?
The rotational speed of the high-speed shaft must not exceed 1,500 revolutions per minute (RPM). Exceeding this limit may result in premature wear or mechanical failure.
Q4
How often should the lubricating oil be changed?
The first oil change should be performed 36 hours after initial operation. Subsequently, replace the oil every 2,000 to 5,000 operating hours or every 6 to 12 months. In harsh environments (high temperature, heavy dust, or continuous heavy loads), the oil change interval should be shortened accordingly.
Q5
What temperature range is the reducer rated for?
The ZQ/JZQ reducer is designed to operate in environments ranging from -40°C to +40°C, making it suitable for both cold storage and standard industrial environments.
Q6
What should I do if the reducer shows abnormal noise or vibration during operation?
If you detect a sudden increase in noise, intensified vibration, abnormal temperature rise, or severe oil leakage, stop the machine immediately. Do not resume operation until the cause has been identified and the fault has been fully resolved by qualified personnel.






