Description

Elevator Guide Roller 260*32*6304 Brief introduction

Elevator Guide Roller 260*32*6304 – Usage, Replacement Cycle & Maintenance Guide
By Nanjing Zhuye Elevatorparts

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Introduction
The 260*32*6304 elevator guide roller is a precision-engineered component designed to ensure smooth and reliable elevator motion along the guide rails. Manufactured and distributed worldwide by Nanjing Zhuye Elevatorparts, this IP54-rated unit meets EN 81-20/50, ASME A17.1 and UL standards, delivering 1 million+ cycles of reliable, low-noise operation.

1. Product Highlights
– Dimensions: Ø260 mm × 32 mm width × 6304 deep-groove ball bearing
– Material: 52100 chrome steel, hardened to HRC 60-65
– Load Rating: 15 kN dynamic, 8 kN static
– Speed: ≤2.5 m/s, noise <55 dB(A) @ 1 m
– Grease: Lithium low-noise, -20 °C to +70 °C
– Life: 1 million+ door cycles

2. Installation Method
Step 1 – Preparation
De-energise the elevator system; lock-out/tag-out and verify zero energy. Record serial number and bearing date code.

Step 2 – Removal
Remove split pins and slide worn roller off the shaft. Clean shaft with 70 % IPA and inspect for scoring.

Step 3 – Fitting New Roller
Slide 260*32*6304 onto shaft until flush. Insert new split pins; torque M6 screws to 8 N·m. Ensure roller is perpendicular to guide rail (±0.5 mm).

Step 4 – Commissioning
Run elevator at inspection speed (0.3 m/s) for 10 cycles. Check lateral play <0.3 mm, temperature rise <45 °C, no squeaks.

3. Daily & Preventive Maintenance
Daily (Building Staff)
Visual check – roller straight, no cracks, grease present.

Monthly
Wipe roller and guide rail with lint-free cloth; remove dust and oil build-up.

Quarterly
Measure roller diameter with caliper; record wear rate. Check split-pin tightness and guide rail alignment.

Annually
Replace grease pack and torque screws. Full dimensional audit and torque re-check.

4. Replacement Cycle & Indicators
| Duty Cycle | Replace Every | Cycles | Warning Signs |
| Standard residential | 7–8 years | 1 M | Diameter <258 mm, >55 dB noise |
| Commercial / hospital | 5–6 years | 0.6 M | Blue heat spots, vibration >2 g |
| High-speed / outdoor | 3–4 years | 0.4 M | Track scoring, temp >70 °C |

Replace immediately if:
– Diameter <258 mm (2 mm wear limit)
– Cracks, pitting, or deformation
– Repeated “guide fault” without mis-alignment
– Temperature rise >70 °C during normal run

Maintain one spare 260*32*6304 per 25 cars for <4-hour response.

5. Why Choose Nanjing Zhuye Elevatorparts?
• Full traceability – laser-etched serial & QR code
• Same-day global dispatch via DHL/FedEx Express
• 24/7 multilingual hotline and on-site training
• Competitive tiered pricing and custom hardness for OEM projects

6. Conclusion
The 260*32*6304 guide roller is the “silent guardian” of every elevator motion. By following the installation, testing, and replacement guidelines—and sourcing only from Nanjing Zhuye Elevatorparts—you guarantee code compliance, reduce downtime, and ensure every passenger rides smoothly and safely.