Lynx Coupling Chain
Chain couplings join two rotating shafts using a short length of roller chain wrapped around two specially-grooved sprocket-like coupling hubs. The chain creates a flexible drive connection that tolerates moderate angular and parallel shaft misalignment, while transmitting full rotational torque. Common as a quick replacement option for jaw couplings, gear couplings, and tire couplings in maintenance situations. Lynx coupling chain is sized from #40 through #100 series.
Key Features
- Roller chain construction in coupling-specific lengths
- Pitches: #40, #50, #60, #80, #100 series
- Pre-cut to standard coupling lengths
- Compatible with industry-standard coupling hubs
- Tool-free installation and removal
- Tolerates ±2° angular and 0.005"/inch parallel misalignment
Common Applications
- Pump and motor drive connections
- Gearbox-to-driven-equipment couplings
- Conveyor head shaft connections
- Mixer and agitator drives
- General industrial machinery couplings
- Replacement for failed jaw or tire couplings
Frequently Asked Questions
How does a chain coupling work?
Two coupling hubs (each looking like a sprocket) mount on the ends of two shafts to be connected. A short length of double-strand roller chain wraps around both hubs, with the chain teeth engaging both. The wrap creates a flexible torque connection that allows small amounts of misalignment while transmitting full rotational power. A cover encloses the chain to retain lubrication and protect from contamination.
When should I choose chain couplings over other types?
Choose chain couplings when: you need quick field repair (chain is widely stocked), the application tolerates moderate misalignment, and operating speed is below 3,600 RPM. Avoid chain couplings for: high-precision drives requiring zero backlash, ultra-high-speed applications above 4,000 RPM, or extreme misalignment beyond 2°.
How do I maintain a chain coupling?
Inspect quarterly: open the cover and check for chain elongation, broken rollers, and grease condition. Re-lubricate annually with EP-2 chain coupling grease or per manufacturer spec. Replace chain when elongation exceeds 3% or when rollers show wear. Replace the entire coupling chain set rather than splicing in new sections.
What's the typical service life?
A properly lubricated chain coupling typically runs 20,000-50,000 hours in continuous service. Service life is shortened by inadequate lubrication, excessive misalignment, shock loading, or contaminated environments. Annual re-lubrication is the most important factor in achieving full service life.
