In addition to heat treatment, the main methods to improve the hardness of gear reducer shaft components include surface strengthening treatment, coating technology and mechanical processing strengthening process‌. These methods can significantly improve the surface hardness and wear resistance of key parts without changing the overall performance of the shaft. 1. ‌Surface coating technology‌ achieves a jump in surface performance by depositing a high-hardness film on the shaft surface: ‌Diamond-like carbon film (DLC)‌: hardness can reach 1500–3000HV, friction coefficient as low as 0.08–0.1, suitable for high speed, light load or precision transmission shafts. ‌Physical Vapor Deposition (PVD)/Chemical Vapor Deposition (CVD)‌: can form hard coatings such as TiN and CrN to significantly improve wear resistance, especially suitable for precision gear shafts. ‌Hard chromium plating‌: A traditional but effective method, the surface hardness can reach above HV800, but attention must be paid to environmental issues and bonding force control. 2. ‌Strong mechanical surface Read More

NGW122-8 reducer oil leakage usually occurs in the following key parts, mainly caused by seal failure, structural problems or improper maintenance: 1. Oil seal part (oil leakage at shaft end) Input shaft/output shaft oil seal aging or wear: Long-term operation causes the rubber oil seal to lose elasticity or wear the lip, resulting in loose sealing. ‌Journal wear or surface roughness‌: Grooves or scratches appear on the contact surface between the shaft and the oil seal, causing the new oil seal to be unable to seal effectively. ‌Improper installation‌: Such as oil seal deflection, dry friction startup or burrs on the shaft, causing initial leakage. ‌2. Oil leakage from the joint surface (box body and end cover, sub-box surface, etc.) ‌‌Sealant failure or improper gluing‌: The glue layer is too thick and easy to crack, and if it is too thin, it cannot fill the gap; assembly without curing can also cause leakage. ‌Deformation of the joint surface or insufficient processing accuracy‌: High-temperature operation or casting stress has not been eliminated, resulting in plane warping and loose sealing. ‌Loose bolts or uneven tightening‌: Insufficient pre-tightening force causes the joint to Read More

‌Whether the reducer needs to be installed vertically depends mainly on the spatial layout of the equipment, load direction, stress conditions and application scenarios‌. If the equipment design requires power transmission in the vertical direction, the lateral space is limited, or the load is vertical (such as elevators, vertical mixers), vertical assembly is required. 4 key factors to determine whether vertical installation is required 1‌. Installation space limitations‌ If the lateral (horizontal) space of the equipment is narrow, but there is sufficient height in the vertical direction, vertical installation can save floor space. ‌Typical scenarios‌: Vertical transmission modules and small cabinet equipment in automated production lines. ‌2. Power transmission direction‌When the motor and load are arranged vertically (for example, the motor is on top and the reducer outputs power downward), vertical installation must be selected. ‌Examples‌: lifting platforms, vertical mixers, centrifuges, etc. 3. Equipment structure and layout requirements: Some equipment designs require the reducer to be fixed vertically, such as directly connected to the box through a flange. Read More

To avoid damaging the cycloidal wheel during assembly, the key points are clean pairing, light assembly and alignment, hard knocking, 180° misalignment, no jamming throughout the process, and adequate lubrication. The following are the complete operating points: 1. Before assembly: Cleaning and pairing (to prevent collisions and misassembly) 1. Thorough cleaning: Use kerosene/cleaning agent to clean the cycloidal wheel, pin gear shell, eccentric bearing, spacer ring, etc. to remove burrs, iron filings, and oil stains; the tooth surface and bearing hole must be clean and free of impurities. 2. Pairing verification: Cycloids must be used in pairs; stack the two pieces and rotate them to make sure that the bearing holes, pin holes, and external tooth shapes completely overlap and appear as one piece when viewed from the front; mark the stamp/engraved surface (all facing up). 3. Appearance inspection: There are no bumps, cracks, or rust on the tooth surface, inner hole, and end face of the cycloidal wheel; if there is any damage, replace it in pairs immediately. Single piece replacement is prohibited. 2. During assembly: light assembly, alignment, and impact prevention (the most vulnerable link) 1. Direct hammering is strictly prohibited: cycloidal wheels, eccentric bearings, and output shafts are not allowed to be hammered hard. Read More

The oil level requirements of different models of JS gear reducers are similar in principle but have different numerical values. The core differences are determined by model size, series, and installation method. The equipment nameplate and instructions must prevail. 1. Core differences and general standards General principles: After shutting down and cooling to normal temperature, the oil level must be between the oil window/dipstick MIN-MAX, 2/3 is recommended (taking into account lubrication and oil churning losses). Model influence: The larger the size (such as JS132, JS160), the higher the oil pool volume and oil immersion depth requirements, and the oil needs to be filled to a higher level to cover the large gear (1-2 tooth heights). The more stages there are (such as multi-stage JS), it is necessary to ensure that the gears at all stages are soaked by oil, and the oil level needs to match the oil pool design of the multi-stage structure. Installation method: press the center line of the oil window for horizontal installation; for vertical/inclined installation, the oil level needs to be raised to ensure that the upper parts are immersed in oil. 2. Quickly judge the three-step method to check the mark: confirm the MIN/MAX markings on the oil window/dipstick Read More

The core differences between ZSY, ZDY and ZLY gear reducers lie in the number of transmission stages, structural features and applicable working conditions: ZDY is a single-stage transmission with a simple structure and is suitable for preliminary deceleration scenarios; ZLY is a two-stage transmission with both reduction ratio and compactness in mind; ZSY is a three-stage transmission with a larger reduction ratio and stronger load-bearing capacity, and is suitable for heavy-load and low-speed applications. The detailed differences are as follows: ‌1. Transmission stages and reduction ratio‌‌ZDY‌: single-stage transmission, with a nominal transmission ratio range of 1.25 to 5.6, suitable for occasions where the demand for deceleration is not high. ‌ZLY‌: Two-stage transmission, with a transmission ratio range of 6.3 to 20, suitable for medium deceleration needs. ‌ZSY‌: Three-stage transmission with a wider transmission ratio range (22.4~100), which can achieve substantial deceleration and meet the requirements of low speed and high torque output. 2‌. Structure and performance characteristics‌‌ZDY‌: It adopts a split casting box for easy maintenance; the gears are processed by high-precision grinding. Read More