EVERGEAR · Zhejiang Hengchi transmissionEVERGEAR
Fit the drive to the machine and its support.
Evergear's ER helical geared drives offer coaxial arrangements with foot and flange mounting. A conveyor retrofit and a vertical mixer can use the same broad family while needing quite different shaft-load, bearing, lubrication and installation decisions. Begin with the machine geometry and duty, then ask the Pingyang manufacturer for a matched configuration.
Current ER product information
Foot or flange is an interface decision.
The two illustrations come from the official ER product gallery. Confirm the complete ordered variant and drawing; the gallery itself is not a frame-specific dimensional schedule.


These figures belong to the ER product page and describe the family. Choose a particular size, ratio, motor and duty together. Ask for rated and peak torque, output speed, service factor and permitted bearing loads for that configuration.
The company introduction gives a wider 0.18–4,000 kW portfolio across several families. That broader scope is not the power rating of ER. For a large drive, obtain the relevant industrial-series rating rather than extending the ER range.
Existing ER directory specifications →Start with the forces the gearbox will actually carry.
Conveyor replacement
Speed, traction and the shaft connection
Provide belt/chain speed, drum or sprocket diameter, loaded/empty starts, acceleration and process resistance. Send the existing motor/reducer plates and a measured foot/flange drawing.
Show pulley or sprocket position and radial force at its actual distance from the bearing. Compare shaft size, key, centre height, mounting holes, guard clearance and coupling alignment. Agree how jams and controlled stops are handled.
Vertical agitator
Thrust and moment are separate from torque
Provide impeller geometry, shaft length, vessel dimensions, fluid density/viscosity and operating-speed range. Describe startup, filling changes and transient loads.
Show shaft weight, axial/radial process forces and overturning moment. State whether the gearbox or an independent support carries them. Request the selected bearing arrangement, life, shaft seal, lubricant distribution and vertical-mounting drawing.
Continuous process
The thermal cycle can decide the selection
Provide operating hours, ambient temperature, enclosure/ventilation, dust or moisture and speed-control range. Ask for thermal capacity and lubrication requirements at the actual duty.
If a motor runs far below its normal speed, agree its cooling and available torque as well as the gearbox operating limits. Include access for inspection, oil changes, coupling service and safe removal.
Change the architecture when the installation calls for it.
Evergear's product centre names several transmission routes. Use their arrangement to narrow a discussion, then obtain that family's own rating and interface documents.
EF · parallel-shaft helical
Discuss this route for a compact offset shaft layout. Send the output connection, support geometry and available installation envelope.
EK / EZ · bevel arrangements
Consider a right-angle drive when a coaxial motor cannot fit. Confirm shaft direction, mounting and the exact helical/bevel or spiral-bevel variant proposed.
EH/EB · larger industrial drives
For sustained heavy duty, define torque spectrum, thermal capacity, foundation, coupling alignment and lubrication/cooling scope as one engineered package.
EQ / ES / ZGY · other mechanisms
The website lists planetary, helical-worm and suspended families. Identify the machine's ratio, support, efficiency and service constraints before comparing them with ER.

Manufacturing and engineering context
Turn a process description into the order's quality plan.
The company describes reducer development, manufacture, sales and digital design. Its manufacturing page shows machining equipment and inspection-related material. For the selected assembly, agree housing and gear materials, critical dimensions, heat-treatment scope, assembly controls and traceable tests.
Zhejiang's government-hosted Science and Technology Brain lists the Zhejiang Evergear Intelligent Transmission Equipment Enterprise Research Institute, identifies Zhejiang Hengchi as its supporting entity and gives the same 199 Wanshun Road address. This supports the research-organisation and location context; it does not certify an ER model's torque or performance.
For the delivery specification
Ask for the current manufacturing/contracting entity, approved model and drawing, material/process records, no-load or load-test conditions, serial identity and operating instructions. Define any special test, sampling and witness requirements before production.
Send the machine layout and its operating point.
Use the ER discussion to obtain a configuration that fits and can be inspected.
- Application, quantity and new drive or retrofit scope.
- Foot/flange layout, mating drawing and available envelope.
- Motor model, supply/control, actual ratio and output-speed range.
- Continuous torque, startup/repeated peaks and stopping duty.
- External shaft forces, thrust/moment and support arrangement.
- Running hours, temperature, lubrication and cooling needs.
- Required drawing, material/process and acceptance records.
- Service access, spares and supplying/manufacturing entity.
Sources & review
Reviewed 8 October 2026. Numerical values are the current ER page's family envelope. Machine-load and procurement questions are editorial guidance.
- EVERGEAR · ER helical geared reducer ↗0.13–1116 rpm, maximum 18000 Nm, 0.18–160 kW, mounting forms and two gallery illustrations.
- EVERGEAR · company introduction ↗Legal entity, wider portfolio and 199 Wanshun Road address.
- EVERGEAR · reducer product centre ↗Named helical, bevel, industrial, planetary and other family routes.
- EVERGEAR · manufacturing page ↗Machining-center photograph and supplier manufacturing context.
- Zhejiang Science and Technology Brain · enterprise research institute ↗Supporting company, intelligent gear-transmission research direction and Pingyang address.