Description
Rexnord Viva VS Coupling series Element VS125 Spacer Element
⚙️ Technical Specifications
-
Coupling Size: VS125 spacer
-
Material: Polyurethane (yellow, standard shoe coating)
-
Continuous Torque Rating: ~930 in‑lb (≈105 Nm)
-
Max Speed: Up to 5,400 RPM
-
Outer Diameter: 120 mm (4.72 in)
-
Shaft-to-Shaft Gap: ~41 mm (1.6 in); overall width ~98–100 mm (≈3.85–4 in)
-
Weight: Around 2.1–2.6 lb (0.95–1.18 kg)
-
Temperature Range: –40 °F to +200 °F (–40 °C to +93 °C) (inferred from material type and similar sizes)
-
Hardware: Supplied with metric capscrews and optionally with high-speed rings (the “R” variant)
🔧 Key Features & Benefits
-
Torsional Flexibility & Vibration Damping: The polyurethane element cushions shock loads and helps prolong connected equipment life
-
Split-in-Half Design: Simplifies installation and replacement without removing hubs
-
Reversible Hubs & Standard Hardware: Facilitates flexible alignment and spacing adjustments.
-
Durable & Chemical-Resistant: Polyurethane offers excellent resistance to wear and aging compared to rubber.
✅ Summary
Ideal for mid-level torque applications (~105 Nm) with moderate coupling gaps (~41 mm), the VS125 spacer offers a balance of performance, simplicity, and durability in industrial drive systems.
📝 Considerations & Next Steps
-
Gap Fit: Ensure the 41 mm spacer width suits your shaft spacing; if larger needed, check VSX125 (extended spacer).
-
Speed Requirement: If operating near 5,400 RPM, the VS125-R variant with high-speed rings might be safer.
-
Hubs Compatibility: Match the coupling hubs to the VS125 size (or close-coupled VS type), ensuring bore and hardware alignment.
