K series helical bevel gear reducer（KHF,KH..B,KAZ,KA,KAF,KF）

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Weigao's K - series helical bevel gear reducers, encompassing models such as KHF, KH..B, KAZ, KA, KAF, and KF, are exceptional power - transmission devices tailored for diverse industrial demands.

These reducers integrate the merits of helical and bevel gears. The helical gears ensure a seamless and efficient start of power transfer, while the bevel gears enable a change in the power - transmission direction, enhancing flexibility in machinery design.

They boast a compact structure, which saves installation space and simplifies integration into various systems. In terms of performance, they deliver high torque with stable operation. The precisely machined gears reduce noise and vibration levels, creating a more comfortable working environment.

Constructed from high - quality materials and manufactured with strict standards, these reducers are highly durable and can endure harsh working conditions. With a wide range of gear ratios available, they offer precise speed control to meet different application requirements, making them ideal for industries like mining, material handling, and general machinery manufacturing.

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K series

Description

K-Series Helical Bevel Gear Reducer: Reinforced Right-Angle Transmission, Empowering Industrial Multi-Scenario Operation

I. Product Overview: Reinforced Modular Design, Meeting Multi-Scenario Transmission Needs

Weigao’s K-Series Helical Bevel Gear Reducer, covering key models including KHF, KH..B, KAZ, KA, KAF, and KF, is a high-performance power transmission device specialized in multi-scenario right-angle drive applications. Based on a reinforced modular design platform, this series integrates upgraded helical bevel gear meshing technology and scenario-specific structural optimization, realizing an excellent balance of reinforced load-bearing, precise transmission and multi-environment adaptation. It effectively solves the pain points of traditional right-angle reducers such as weak impact resistance, poor high-temperature adaptability and limited precision control, and can maintain stable and reliable power output in working conditions involving high temperature, medium-high impact load, high-speed precision transmission and long-term continuous operation. With its scenario-specific reinforced design advantages and broad model coverage, it has become a core transmission component in industries such as intelligent manufacturing, heavy-duty material handling, light industrial processing and agricultural machinery, providing high-reliability power support for the high-quality upgrading of industrial production. As a key export product of Weigao, this series has been exported to more than 80 countries and regions around the world, winning wide trust from global customers with its all-round performance.

II. Core Advantages: Six Core Strengths, Shaping Multi-Scenario Transmission Excellence

1. Precision-Enhanced Right-Angle Transmission, Stable & Efficient

Adopting precision-ground helical bevel gears with advanced tooth profile correction and spiral angle optimization technology, the series achieves meshing accuracy up to GB/T 10095.2 Class 5-6 standard. The 90-degree right-angle transmission structure with reinforced bearing support ensures precise axis alignment and uniform force distribution during gear meshing, reducing transmission backlash to ≤3.5arcmin (KAZ models can be customized to ≤2arcmin for high-precision scenarios). The transmission efficiency reaches 93%-96% for single-stage transmission and 91%-94% for multi-stage transmission, effectively reducing energy loss. The optimized gear meshing design and reinforced housing sound insulation structure minimize operating noise, with the noise level ≤73dB at 1m distance, creating a stable and quiet working environment for both precision workshops and heavy-duty sites.

2. Scenario-Specific Reinforced Design, Strong Adaptability

Each model in the series is equipped with scenario-specific reinforced configurations: KHF models feature enhanced heat dissipation fins and high-temperature resistant lubrication system, adapting to high-temperature working environments such as plastic processing and smelting auxiliary equipment; KH..B models adopt reinforced cast iron housing and thickened transmission shaft, suitable for medium-high impact load scenarios such as light mining and small construction machinery; KAZ models focus on high-speed precision transmission, ideal for intelligent assembly lines and robotic arm systems; KA models adopt compact flange-mounted design, matching equipment with limited installation space; KAF and KF models are general-purpose reinforced models, suitable for medium-load continuous operation scenarios such as small and medium-sized conveyors and agricultural machinery. This targeted reinforced design ensures optimal performance in diverse harsh or precision scenarios.

3. Reinforced Load-Bearing, Durable Operation

Helical bevel gears and transmission shafts are made of high-strength 20CrNiMoH alloy steel, processed through integral carburizing, quenching, tempering and precision grinding processes. The surface hardness reaches HRC 60-64, and the core hardness is HRC 32-38, ensuring excellent wear resistance, fatigue resistance and impact toughness. The optimized gear tooth contact area design and reinforced bearing configuration increase the effective load-bearing capacity by 35% compared to standard models, with rated output torque ranging from 90N·m to 11000N·m, covering medium to medium-heavy load transmission needs. The one-piece reinforced cast iron housing with multi-rib reinforcement design has strong structural rigidity and shock absorption capacity, which can effectively disperse transmission stress and prevent housing deformation, ensuring a service life of more than 11 years under normal maintenance and medium-heavy load operation conditions.

4. Flexible Installation, Diversified Configuration

The series supports multiple installation modes to meet diverse layout needs, including base-mounted, flange-mounted (B5/B14), small flange-mounted and torque arm-mounted. The output shaft can be configured with multiple options such as solid shaft with flat key, spline solid shaft, hollow shaft with locking disk and hollow shaft with involute spline, and can be flexibly matched with motors with power ranging from 0.37kW to 90kW and reduction ratios of 5-450 (single-stage/multi-stage combination). The standardized interface design and lightweight reinforced structure facilitate quick installation and debugging, and the scenario-specific configuration options (such as high-temperature seals for KHF models) realize personalized adaptation to different working conditions.

5. Multi-Level Sealing & Heat Dissipation, Wide Environmental Adaptability

Equipped with a multi-layer composite sealing system composed of high-temperature resistant double-lip oil seal, labyrinth seal and O-ring, the reducer achieves IP55 protection level (IP65 can be customized for harsh environments). This sealing structure can effectively prevent the intrusion of dust, water vapor, corrosive gas and other impurities, and avoid oil leakage. KHF models are additionally equipped with enhanced heat dissipation fins and optional forced cooling fans, ensuring stable operation in high-temperature environments up to +100℃. 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 -25℃ to +100℃, adapting to diverse harsh environments such as high temperature, high humidity, dusty and outdoor operations.

6. Convenient Maintenance, Cost-Effective Operation

The modular reinforced design of the product makes the disassembly, assembly and maintenance of components more convenient, and the high interchangeability of spare parts reduces maintenance difficulty and time cost. The centralized oil filling port, oil drainage port and transparent oil level observation window facilitate daily lubrication management and oil level inspection. KHF models are equipped with oil temperature monitoring ports for real-time monitoring of lubrication status. It is recommended to use 220#/320# high-temperature resistant industrial gear oil; the first oil change is after 600 hours of operation, and regular maintenance and oil change are performed every 5500 hours thereafter. The high reliability, long service life and scenario-specific durability of the product effectively reduce the frequency of maintenance and replacement, lowering the total operation cost of customers.

III. Application Fields: Multi-Scenario Coverage, Boosting Industrial High-Quality Development

With its scenario-specific reinforced design, reliable performance and wide environmental adaptability, Weigao’s K-Series Helical Bevel Gear Reducer (KHF, KH..B, KAZ, KA, KAF, KF models) has been widely applied in various industrial and agricultural fields:

Intelligent Manufacturing: Intelligent assembly lines, robotic arms, precision feeding equipment, matching high-precision and high-speed transmission needs;
Heavy-Duty Material Handling: Belt conveyors, chain conveyors, stackers in high-temperature workshops, adapting to medium-heavy load and high-temperature working conditions;
Light Industrial Processing: Plastic processing machinery, rubber mixing equipment, printing presses, adapting to high-temperature and medium-load continuous operation requirements;
Agricultural Machinery: Large-scale agricultural irrigation pumps, feed mixers, farmland operation machinery, adapting to outdoor complex and variable working conditions;
Light Mining & Construction: Small mining auxiliary equipment, small construction hoists, concrete mixers, adapting to medium-high impact load working environments;

IV. Technical Parameters: Precise Matching, Meeting Diverse Needs

Item	Specification Range
Motor Power Adaptation	0.37kW - 90kW
Reduction Ratio	5 - 450 (Single-stage/Multi-stage Combination)
Rated Output Torque	90N·m - 11000N·m
Transmission Efficiency	91% - 96% (Single-stage/Multi-stage)
Operating Noise	≤73dB (Measured at 1m Distance)
Protection Level	IP55 (IP65 Customizable)
Operating Temperature	-25℃ - +100℃
Installation Method	Base-mounted, Flange-mounted (B5/B14), Small Flange-mounted, Torque Arm-mounted
Output Shaft Type	Solid Shaft (Flat Key/Spline), Hollow Shaft (Locking Disk/Involute Spline)

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 KHF models used in high-temperature environments, pay attention to the installation of heat dissipation space and the connection of cooling systems if equipped. Select the appropriate lubricating oil according to the working conditions: use 220# industrial gear oil for normal temperature and medium load, and 320# high-temperature resistant industrial gear oil for high temperature and heavy load. Regularly check the oil level, oil quality and oil temperature; replace the lubricating oil after the first 600 hours of operation, and perform comprehensive maintenance every 5500 hours thereafter, including checking gear meshing status, sealing performance, bearing temperature 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: Scenario-Driven, Creating Multi-Scenario Transmission Value

Adhering to the design philosophy of "Reinforcement, Precision, Adaptability and Durability", Weigao’s K-Series Helical Bevel Gear Reducer (KHF, KH..B, KAZ, KA, KAF, KF models) focuses on the multi-scenario right-angle transmission needs of industrial and agricultural fields, and continuously upgrades core technologies and optimizes production processes. Whether in high-temperature continuous operation, medium-high impact load, high-precision control or complex outdoor working scenarios, this series can provide stable and efficient power transmission solutions for customers with its scenario-specific reinforced performance and diversified configuration advantages, helping to improve production efficiency and reduce operation risks. We will continue to focus on the research and development of scenario-adapted transmission technology, deeply explore the needs of different industries, provide customized product solutions and global after-sales service support, and work with global customers to build a more efficient and reliable 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 access to global markets.

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