K series helical bevel gear reducer（KAF..R,KF..R,KA..BR,K..R,KHZ,KH）

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Weigao's K - series helical bevel gear reducers, including models like KAF..R, KF..R, KA..BR, K..R, KHZ, and KH, are cutting - edge power transmission solutions.

These reducers ingeniously combine helical and bevel gears. The helical gears initiate smooth and efficient power transfer, while the bevel gears enable a change in the power transmission direction, making them adaptable to complex industrial layouts.

Their compact design is a major plus, saving installation space and facilitating easy integration into various machinery. In terms of performance, they offer high torque output and stable operation. The precision - engineered gears reduce noise and vibration significantly, creating a quieter working environment.

With high - quality materials and strict manufacturing processes, these reducers are highly durable and can withstand harsh working conditions. They also come with a wide range of gear ratios, allowing for precise speed control to meet different application needs. Whether in heavy - duty manufacturing or precision - driven operations, Weigao's K - series reducers are a reliable choice.

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K series

Description

K-Series Helical Bevel Gear Reducer: Universal Right-Angle Transmission, Empowering Industrial Versatile Operation

I. Product Overview: Universal Modular Design, Meeting Versatile Transmission Needs

Weigao’s K-Series Helical Bevel Gear Reducer, covering key models including KAF..R, KF..R, KA..BR, K..R, KHZ, and KH, is a versatile high-reliability power transmission device specialized in right-angle drive scenarios. Based on a universal modular design platform, this series integrates mature helical bevel gear meshing technology and flexible combination transmission structure, realizing an excellent balance of wide adaptability, stable transmission and easy combination. It effectively solves the pain points of traditional right-angle reducers such as poor universal compatibility, limited torque range and difficult combination expansion, and can maintain reliable power output in working conditions involving medium load, continuous operation and variable speed requirements. With its universal design advantages, flexible combination capabilities and broad model coverage, it has become a core transmission component in industries such as general manufacturing, material handling, light industrial processing and agricultural machinery, providing cost-effective and stable power support for the diversified upgrading of industrial production. As a mainstream 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 versatile application capabilities.

II. Core Advantages: Six Core Strengths, Creating Universal Right-Angle Benchmarks

1. Stable Right-Angle Transmission, High Universal Compatibility

Adopting precision-ground helical bevel gears with optimized tooth profile design, the series achieves meshing accuracy up to GB/T 10095.2 Class 6 standard. The 90-degree right-angle transmission structure with standardized axis alignment ensures uniform force distribution during gear meshing, reducing transmission backlash to ≤4arcmin. The transmission efficiency reaches 93%-96% for single-stage transmission and 91%-94% for multi-stage combination transmission, effectively reducing energy loss. The standardized modular design ensures high compatibility with mainstream motors and transmission components in the market, and the operating noise is ≤74dB at 1m distance, creating a stable and comfortable working environment for general industrial scenarios.

2. Model-Specific Positioning, Flexible Combination Capability

Each model in the series has clear positioning and supports flexible combination: KAF..R and KF..R models are designed for general-purpose medium-load scenarios, with compact structure and suitable for small and medium-sized conveying equipment; KA..BR models adopt reinforced bearing and housing design, adapting to medium-impact load working environments such as light mining machinery; K..R models are standard universal models, matching most general industrial right-angle transmission needs; KHZ and KH models support combination with other series reducers to achieve lower speed and higher torque output, meeting the needs of heavy-load variable-speed scenarios. This multi-model coverage and combination capability ensure full adaptation to diverse industrial transmission requirements.

3. Reliable Load-Bearing, Wide Torque Range

Helical bevel gears and transmission shafts are made of high-quality 40CrNiMo alloy steel, processed through carburizing, quenching, tempering and precision grinding processes. The surface hardness reaches HRC 59-63, and the core hardness is HRC 31-37, ensuring excellent wear resistance and fatigue strength. The optimized gear tooth width and modulus design, combined with flexible combination transmission, make the rated output torque of the series range from 80N·m to 10000N·m, covering medium to heavy load transmission needs. The one-piece cast iron housing with reasonable rib layout has good structural rigidity and shock absorption capacity, which can effectively disperse transmission stress and ensure a service life of more than 10 years under normal maintenance and medium-heavy load operation conditions.

4. Simple Installation, Diversified Configuration

The series supports mainstream installation modes in the market, including base-mounted, flange-mounted (B5/B14) and torque arm-mounted, which can be flexibly selected according to equipment layout requirements. The output shaft is configured with multiple options such as solid shaft with flat key, spline solid shaft and hollow shaft with locking disk, and can be flexibly matched with motors with power ranging from 0.37kW to 75kW and reduction ratios of 5-500 (single-stage/multi-stage combination). The standardized interface design and lightweight structure facilitate quick installation and debugging, and the combination of KHZ and KH models with other reducers can further expand the speed and torque range, realizing personalized configuration for different working conditions.

5. Reliable Sealing System, 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 according to needs). This sealing structure can effectively prevent the intrusion of dust, water vapor and other impurities in general industrial environments and avoid oil leakage, ensuring stable operation in environments such as workshops, outdoor construction sites and agricultural fields. The rational internal oil circuit design ensures sufficient lubrication of all transmission components, and the product can work normally in the operating temperature range of -20℃ to +85℃, adapting to most general industrial and agricultural working conditions.

6. Easy Maintenance, Cost-Effective Operation

The modular design of the product makes the disassembly, assembly and maintenance of components more convenient, and the high universality of spare parts reduces maintenance difficulty and cost. The centralized oil filling port, oil drainage port and transparent oil level observation window facilitate daily lubrication management and oil level inspection. 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 flexible combination capability of the product effectively reduce the frequency of maintenance and replacement, lowering the total operation cost of customers.

III. Application Fields: Versatile Coverage, Boosting Industrial Diversified Development

With its universal compatibility, reliable performance and flexible combination capability, Weigao’s K-Series Helical Bevel Gear Reducer (KAF..R, KF..R, KA..BR, K..R, KHZ, KH models) has been widely applied in various general industrial and agricultural fields:

General Manufacturing: Small and medium-sized conveyors, assembly line equipment, small processing machines, providing stable right-angle power transmission;
Material Handling: Belt conveyors, chain conveyors, stackers, adapting to medium-load material transportation needs;
Light Industrial Processing: Textile machinery, printing equipment, plastic processing machinery, matching medium-load continuous operation requirements;
Agricultural Machinery: Large-scale agricultural irrigation pumps, feed mixers, farmland operation machinery, adapting to outdoor complex working conditions;
Light Mining & Construction: Small mining auxiliary equipment, small construction hoists, adapting to medium-impact load working environments;

IV. Technical Parameters: Precise Matching, Meeting Diverse Needs

Item	Specification Range
Motor Power Adaptation	0.37kW - 75kW
Reduction Ratio	5 - 500 (Single-stage/Multi-stage Combination)
Rated Output Torque	80N·m - 10000N·m
Transmission Efficiency	91% - 96% (Single-stage/Multi-stage Combination)
Operating Noise	≤74dB (Measured at 1m Distance)
Protection Level	IP54 (IP55 Customizable)
Operating Temperature	-20℃ - +85℃
Installation Method	Base-mounted, Flange-mounted (B5/B14), Torque Arm-mounted
Output Shaft Type	Solid Shaft (Flat Key/Spline), 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 combined transmission configurations, pay attention to the alignment accuracy between the combined reducers. 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 and oil quality; replace the lubricating oil after the first 500 hours of operation, and perform comprehensive maintenance every 5000 hours thereafter, including checking gear meshing status, sealing performance and tightening fasteners. 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: Versatility-Driven, Creating Universal Transmission Value

Adhering to the design philosophy of "Universality, Reliability, Flexibility and Economy", Weigao’s K-Series Helical Bevel Gear Reducer (KAF..R, KF..R, KA..BR, K..R, KHZ, KH models) focuses on the versatile right-angle transmission needs of general industrial and agricultural fields, and continuously optimizes product structure and production processes. Whether in medium-load continuous operation, general outdoor working conditions or combined transmission scenarios, this series can provide stable and efficient power transmission solutions for customers with its reliable performance, universal compatibility and flexible combination capability, helping to improve production efficiency and control operation costs. We will continue to focus on the optimization of universal transmission technology, based on the actual needs of different general industrial fields, provide standardized and reliable products and comprehensive after-sales services, and work with global customers to build a more efficient and economical 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 and agricultural markets.

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