Description

Elevator door operator pulley Driving wheel Driven wheel Brief Introduction

Product Name	Elevator door operator pulley
Model Number	Driving wheel Driven wheel
Quality	Original.Brand New
Payment	T/T. Paypal. Western Union
Delivery	3-5 Working Days
Packaging	Packed by carton

Elevator Door Operator Pulley: Driving Wheel & Driven Wheel – Core Transmission from Nanjing Zhuye Elevatorparts

Elevator Door Operator Pulley, consisting of Driving Wheel and Driven Wheel, is a critical transmission component for elevator door systems. The Driving Wheel, connected to the door operator motor, provides power to drive the door belt/chain, while the Driven Wheel functions as a guide and tensioning component—working together to ensure the smooth, synchronous, and quiet operation of elevator car doors and landing doors. Compatible with mainstream elevator door operator models (including Schindler, OTIS, and KONE), these pulleys are widely applicable to residential, commercial, and industrial elevators, directly affecting the door opening/closing speed, stability, and service life of the door system. Exclusively supplied byNanjing Zhuye Elevatorparts, a professional provider of high-quality elevator mechanical components, the Elevator Door Operator Pulley (Driving Wheel & Driven Wheel) fully complies with international elevator safety standards (EN 81-20, GB 7588) and transmission component specifications. Manufactured with premium aluminum alloy or steel and precision machining technology, it features excellent wear resistance, low noise, and high transmission efficiency, winning trust from global elevator maintenance teams and manufacturers.

Nanjing Zhuye Elevatorparts adheres to the core philosophy of “Smooth Transmission, Durable Operation” and implements strict quality control for the Elevator Door Operator Pulley (Driving Wheel & Driven Wheel). Each set undergoes multi-stage pre-delivery inspections, including wear resistance testing, concentricity detection, noise level measurement, and load-bearing capacity verification. The pulleys adopt advanced materials and technologies: The Driving Wheel (bearing higher torque) is made of high-strength 6061 aluminum alloy or 45# steel, with a surface hardness of HRC 35–40 to withstand long-term power transmission; the Driven Wheel is made of lightweight aluminum alloy with a wear-resistant rubber coating, reducing friction and operating noise (noise ≤ 50dB). Both pulleys are designed with precision grooves to fit the door belt/chain perfectly, avoiding slipping or deviation; the built-in bearings (deep groove ball bearings) ensure smooth rotation with a friction coefficient ≤ 0.002. The standardized shaft diameter and mounting dimensions enable seamless matching with most door operator systems, simplifying selection and replacement for maintenance personnel.

Step-by-Step Usage Guide for Elevator Door Operator Pulley (Driving Wheel & Driven Wheel)

Door Operator Pulley (Driving Wheel & Driven Wheel)Door Knife Spring (for S8/F9/K8 Door Knife)Leveling Sensor SGD31-GG-TZ2B2PSlider Bracket & Door SliderDoor Contact EDC-92Hall Door Ball 32*17MMTo maximize the service life, operational stability, and user experience of the Elevator Red Square Button PB-12, strictly follow the professional guidelines provided by Nanjing Zhuye Elevatorparts for selection, installation, and maintenance:

1. Professional Selection & Pre-Installation Preparation

Installation must be performed by certified elevator technicians. Prior to selection, confirm the elevator’s door operator model, pulley shaft diameter, groove type (for belt/chain), and dimensions to choose the matching Driving Wheel and Driven Wheel (do not mix pulleys from different models). Consult Nanjing Zhuye Elevatorparts’ technical team if unsure about compatibility. Preparation steps: Cut off the elevator’s main power supply and secondary power supply, and lock the power switch; place a “Maintenance in Progress” warning sign at the elevator entrance; fix the elevator car at a flat floor; open the car door operator cover to expose the pulley assembly; loosen the door belt/chain tensioner to remove tension; remove the old Driving Wheel and Driven Wheel using a screwdriver or wrench; clean the pulley mounting shaft and surrounding area to remove dust, oil stains, and rust; prepare professional tools such as a wrench, screwdriver, and bearing puller.

ETransmissionstic ForcePositionGuidanceSignalFunctionFunctionSignalSignalFunctionFunctionFunctionFunction2. Correct Installation & Precision Adjustment

Pulley Installation: Take the matching Driving Wheel and Driven Wheel from Nanjing Zhuye Elevatorparts. Install the Driving Wheel on the door operator motor shaft first, aligning it with the keyway (if applicable), and fix it with the locking bolt (torque: 2–3N·m). Then install the Driven Wheel on the guide shaft, ensuring it is coaxial with the Driving Wheel (concentricity error ≤ 0.2mm) to avoid uneven belt/chain wear.
Belt/Chain Tensioning: Reinstall the door belt/chain onto the pulleys, then adjust the tensioner to set the appropriate tension (follow Nanjing Zhuye Elevatorparts’ specifications: belt deflection 2–3mm under 5N force; chain slack ≤ 5mm). Ensure the belt/chain fits tightly in the pulley grooves without slipping; avoid over-tensioning to prevent premature bearing failure.
Transmission Test: Manually rotate the Driving Wheel to check the operation—confirm both pulleys rotate smoothly without jamming, and the belt/chain runs synchronously with no deviation. Connect the secondary power supply, test the door operator motor in both directions, and adjust the pulley position if there is abnormal noise, vibration, or uneven door movement.

3. Post-Installation Testing & Daily Maintenance

Comprehensive Function Testing: Restore the elevator’s main power supply, operate the elevator to open and close the doors repeatedly (≥ 50 times), testing the pulley system: Confirm the door opens/closes smoothly at the standard speed, with no jamming, abnormal noise, or belt/chain slipping; check that the door is aligned correctly when closed. Use the elevator controller’s self-diagnosis function to check for door operator overload faults caused by pulley issues.
Daily Inspection: Maintenance personnel should check the pulleys during daily shaft patrols: Observe the Driving Wheel and Driven Wheel for wear, cracks, or loose mounting; check the pulley grooves for belt/chain wear marks; inspect the built-in bearings for noise or stuck rotation; clean the pulleys and belt/chain with a dry cloth to remove dust and debris.
Regular Maintenance: Every 3 months, apply a small amount of special lubricant to the pulley bearings (use lubricant recommended by Nanjing Zhuye Elevatorparts to avoid damaging rubber components). Every 6 months, recheck the pulley concentricity, belt/chain tension, and replace the belt/chain if worn. For elevators in high-traffic or dusty environments, shorten the maintenance interval to 1 month.

Recommended Replacement Cycle for Elevator Door Operator Pulley (Driving Wheel & Driven Wheel)

As core transmission components enduring long-term friction with the door belt/chain, mechanical vibration, environmental erosion (humidity, dust, temperature changes), and bearing wear, the Elevator Door Operator Driving Wheel and Driven Wheel have specified service lives. Timely replacement is crucial to avoiding faults such as pulley wear, bearing failure, or groove deformation—issues that may lead to door opening/closing jamming, slow operation, or belt/chain breakage, affecting elevator operation efficiency and passenger safety.

1. Standard Replacement Cycle

Under normal operating conditions (elevator daily operation time 12–24 hours, daily door opening/closing times ≥ 1000, operating environment temperature -30℃ to 80℃, humidity 10%–95%), the recommended replacement cycle for the Elevator Door Operator Driven Wheel is 1.5–2.5 years, and for the Driving Wheel is 2–3 years. This cycle is determined based on Nanjing Zhuye Elevatorparts’ long-term field operation data, material wear tests, and global user feedback. The difference in cycles is due to the Driven Wheel’s rubber coating wearing faster, while the Driving Wheel’s metal structure has higher durability.

2. Adjustments for Special Scenarios

High-Traffic & Harsh Environments: For elevators in high-traffic areas (e.g., large shopping malls, airports with daily door opening/closing times ≥ 2000) or harsh environments (e.g., coastal areas with high salt spray, industrial sites with strong dust), the replacement cycle for the Driven Wheel is shortened to 8–12 months, and for the Driving Wheel to 1–1.5 years. High-frequency friction accelerates pulley wear, while harsh environments cause rapid aging of rubber components and corrosion of metal parts.
Low-Frequency Use & Stable Environments: For elevators with low usage frequency (e.g., villa elevators, small office buildings with daily operation time < 8 hours) and stable shaft environments (constant temperature and humidity, little dust), the replacement cycle for the Driven Wheel can be extended to 2.5–3.5 years, and for the Driving Wheel to 3–4 years—only after Nanjing Zhuye Elevatorparts’ technicians inspect and confirm that the pulley’s wear degree, bearing performance, and transmission accuracy meet factory standards.

3. Immediate Replacement Conditions

Replace the Elevator Door Operator Driving Wheel or Driven Wheel immediately if any of the following issues occur, regardless of their service life:

The pulley groove is severely worn (depth reduced by more than 2mm) or deformed, causing the door belt/chain to slip or disengage during operation.
The Driven Wheel’s rubber coating is cracked, peeled off, or worn through, leading to increased operating noise or uneven door movement.
The pulley bearings are stuck, noisy, or have obvious play, resulting in unsmooth rotation and affecting transmission efficiency.
The pulley body is cracked, corroded severely, or the mounting hole is deformed—losing the ability to fix to the shaft and posing safety risks.

Door Operator Pulley (Driving Wheel & Driven WheelDoor Knife Spring for S8/F9/K8 Door KnifeeltransmissionicodernS8/F9/K8 door knifdoorsmooth and stdoordoor knife mechanis caused by pulley failure caused by spring failuredriving and driven wheeldoor knife springs for S8/F9/K8 modelmodelmodelreliable transmissiontable elastic performancedoor knifdoorIn conclusion, the Elevator Leveling Sensor SGD31-GG-TZ2B2P from Nanjing Zhuye Elevatorparts is a high-quality, precision positioning component tailored for modern elevator systems. By following the correct selection, installation, maintenance, and replacement guidelines, elevator maintenance teams can effectively ensure the accurate and stable leveling of the elevator, improve ride comfort, and eliminate potential safety hazards caused by positioning failure. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic SGD31-GG-TZ2B2P sensors, plus professional support—including model matching, on-site calibration guidance, and prompt after-sales service. Trust Nanjing Zhuye Elevatorparts for the precise positioning of your elevator system.

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