K series helical bevel gear reducer（KA..B,K）

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Weigao's K - series helical bevel gear reducers, including the KA..B and K models, represent advanced solutions in the field of power transmission.

These reducers are a fusion of helical and bevel gear technologies. The helical gears are responsible for initiating a smooth and efficient power - transfer process, minimizing energy loss during the initial stage. Meanwhile, the bevel gears play a crucial role in changing the direction of power transmission, allowing for greater flexibility in machine design and layout.

Their compact design is a significant advantage, enabling easy installation even in space - constrained environments. In terms of performance, they offer high torque output and stable operation. The precision - engineered gears reduce noise and vibration, creating a more pleasant working atmosphere.

Constructed from high - grade materials and manufactured with strict quality control, these reducers are highly durable and can withstand the rigors of demanding industrial applications. Whether in heavy - duty manufacturing or precision - driven processes, Weigao's K - series reducers provide reliable and efficient power transmission.

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K series

Description

K-Series Helical Bevel Gear Reducer: High-Rigidity Impact-Resistant Transmission, Empowering Efficient Industrial Operation

I. Product Overview: High-Rigidity Modular Design, Meeting Efficient Transmission Needs

Weigao’s K-Series Helical Bevel Gear Reducer, covering key models including KA..B and K, is a high-reliability power transmission device specialized in right-angle drive scenarios requiring impact resistance and efficient operation. Based on a high-rigidity modular design platform, this series integrates mature helical bevel gear meshing technology and reinforced structural design, realizing an excellent balance of high rigidity, strong impact resistance, efficient transmission and wide compatibility. It effectively solves the pain points of traditional right-angle reducers such as insufficient structural rigidity, poor impact load adaptability and low transmission efficiency in continuous operation, and can maintain stable power output in working conditions involving medium-high impact load, long-term continuous operation and frequent start-stop. With its high-rigidity impact-resistant advantages and universal adaptation capabilities, it has become a core transmission component in industries such as general manufacturing, light mining, construction machinery and logistics handling, providing efficient and stable power support for industrial production efficiency improvement. As a classic export product of Weigao, this series has been exported to more than 80 countries and regions around the world, winning wide recognition from global customers with its reliable performance and cost-effective advantages.

II. Core Advantages: Six Core Strengths, Shaping Impact-Resistant Transmission Benchmarks

1. High-Rigidity Right-Angle Transmission, Efficient & Stable

Adopting precision-ground helical bevel gears with optimized tooth profile and contact ratio design, the series achieves meshing accuracy up to GB/T 10095.2 Class 6 standard. The 90-degree right-angle transmission structure with integrated shaft-bearing support ensures precise axis alignment and uniform force distribution during gear meshing, reducing transmission backlash to ≤4arcmin. The transmission efficiency reaches 94%-97% for single-stage transmission and 92%-95% for multi-stage transmission, effectively reducing energy loss in continuous operation. The high-rigidity cast iron housing with optimized rib layout enhances structural stability, and the operating noise is ≤75dB at 1m distance, creating a stable working environment for high-frequency operation scenarios.

2. Model-Differentiated Design, Targeted Adaptation

The two core models of the series have clear positioning to meet differentiated needs: KA..B models adopt reinforced housing and thickened transmission shaft design, equipped with high-load bearing components, which can withstand medium-high impact load, suitable for light mining auxiliary equipment, small construction machinery and other scenarios with frequent impact; K models are classic universal models with compact structure and optimized cost performance, focusing on efficient transmission in general industrial scenarios, suitable for general conveyors, packaging machinery, small processing equipment and other medium-load continuous operation scenarios. The differentiated design ensures precise matching of different working condition requirements.

3. Strong Impact Resistance, Durable Operation

Helical bevel gears and transmission shafts are made of high-quality 42CrMo alloy steel, processed through carburizing, quenching, tempering and precision grinding processes. The surface hardness reaches HRC 58-62, and the core hardness is HRC 30-36, ensuring excellent wear resistance and impact toughness, which can effectively absorb impact energy during load changes. The KA..B models are additionally equipped with shock-absorbing gaskets and reinforced gear tooth roots, further improving impact resistance. The rated output torque of the series ranges from 100N·m to 12000N·m, covering medium to heavy load transmission needs. The one-piece high-rigidity cast iron housing can effectively disperse transmission stress, preventing structural deformation under impact load, ensuring a service life of more than 10 years under normal maintenance conditions.

4. Universal Installation, Simple Configuration

The series supports mainstream installation modes in the global market, including base-mounted, flange-mounted (B5/B14) and torque arm-mounted, which can be flexibly selected according to equipment layout. The output shaft is configured with common options such as solid shaft with flat key and hollow shaft with locking disk, which can be directly matched with motors with power ranging from 0.55kW to 110kW and reduction ratios of 5-500 (single-stage/multi-stage combination). The standardized interface design and lightweight structure facilitate quick installation, debugging and replacement, and the high universality of components reduces the difficulty of later configuration adjustment, adapting to the flexible production needs of general industry.

5. Reliable Sealing, Strong Environmental Adaptability

Equipped with a double-lip oil seal + O-ring composite sealing system, the reducer achieves IP54 protection level (IP55 can be customized for harsh environments). This sealing structure can effectively prevent the intrusion of dust, water vapor and other impurities in general industrial and outdoor construction environments, avoiding oil leakage and component corrosion. The rational internal oil circuit design ensures sufficient lubrication of all transmission components during high-frequency start-stop, and the product can work normally in the operating temperature range of -20℃ to +90℃, adapting to most general industrial and construction site working conditions.

6. Easy Maintenance, Cost-Effective Operation

The modular design of the product makes the disassembly and maintenance of components more convenient, and the high universality of spare parts in the market reduces maintenance cost and cycle. The centralized oil filling port and oil drainage port facilitate daily lubrication management, and the transparent oil level observation window allows real-time monitoring of oil level status. It is recommended to use 220#/320# general industrial gear oil; the first oil change is after 500 hours of operation, and regular maintenance and oil change are performed every 5000 hours thereafter. The reliable performance, long service life and simple maintenance of the product effectively reduce the total operation cost of customers, especially suitable for large-scale application scenarios in general industry.

III. Application Fields: Diversified Coverage, Boosting Industrial Efficiency Improvement

With its high-rigidity impact-resistant performance, universal compatibility and efficient transmission advantages, Weigao’s K-Series Helical Bevel Gear Reducer (KA..B, K models) has been widely applied in various industrial fields:

General Manufacturing: General conveyors, packaging machinery, small processing equipment, providing efficient and stable right-angle power transmission;
Logistics Handling: Belt conveyors, chain conveyors, stackers in logistics warehouses, adapting to medium-load continuous operation needs;
Light Mining Industry: Small mining auxiliary conveyors, ore screening equipment, adapting to medium-high impact load working environments;
Construction Machinery: Small construction hoists, concrete mixers, electric winches, adapting to construction site impact load and harsh working conditions;
Agricultural Machinery: Medium-sized agricultural irrigation pumps, grain processing equipment, adapting to outdoor continuous operation requirements;

IV. Technical Parameters: Precise Matching, Meeting Diverse Needs

Item	Specification Range
Motor Power Adaptation	0.55kW - 110kW
Reduction Ratio	5 - 500 (Single-stage/Multi-stage Combination)
Rated Output Torque	100N·m - 12000N·m
Transmission Efficiency	92% - 97% (Single-stage/Multi-stage)
Operating Noise	≤75dB (Measured at 1m Distance)
Protection Level	IP54 (IP55 Customizable)
Operating Temperature	-20℃ - +90℃
Installation Method	Base-mounted, Flange-mounted (B5/B14), Torque Arm-mounted
Output Shaft Type	Solid Shaft (Flat Key), Hollow Shaft (Locking Disk)

V. Installation and Maintenance: Scientific Operation, Maximizing Performance

During installation, ensure that the coaxiality error between the reducer and the motor is ≤0.1mm and the perpendicularity error of the right-angle axis is ≤0.08mm to avoid abnormal wear of gears and bearings caused by misalignment. For KA..B models used in impact load scenarios, pay attention to the firm installation of the base and the inspection of shock-absorbing components. Select the appropriate lubricating oil according to the working conditions: use 220# industrial gear oil for normal temperature and medium load, and 320# industrial gear oil for high temperature and heavy load. Regularly check the oil level, oil quality and fastener tightness; replace the lubricating oil after the first 500 hours of operation, and perform comprehensive maintenance every 5000 hours thereafter, including checking gear meshing status and sealing performance. If abnormal phenomena such as excessive noise, obvious vibration, oil leakage or overheating occur during operation, stop the machine immediately for inspection and troubleshooting.

VI. Conclusion: Efficiency-Driven, Creating Reliable Transmission Value

Adhering to the design philosophy of "High Rigidity, Reliability, Universality and Efficiency", Weigao’s K-Series Helical Bevel Gear Reducer (KA..B, K models) focuses on the efficient and reliable right-angle transmission needs of general industrial fields, and continuously optimizes product structure and production processes. Whether in medium-high impact load construction sites, long-term continuous operation workshops or flexible configuration logistics scenarios, this series can provide stable and efficient power transmission solutions for customers with its high-rigidity impact-resistant performance and universal adaptation advantages, helping to improve production efficiency and reduce operation risks. We will continue to focus on the optimization of general industrial transmission technology, based on the actual needs of different industries, provide cost-effective and reliable products and comprehensive after-sales services, and work with global customers to build a more efficient and stable industrial production system. All export products of this series have passed international certifications such as ROHS, CE and ISO9001, fully complying with the technical standards and safety requirements of various countries and regions, ensuring smooth application in global general industrial markets.

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