Power Transmission Safety: Best Practices for Industrial Facilities

Power transmission equipment — belts, chains, shafts, couplings, and gears — presents serious safety hazards. Entanglement in unguarded rotating machinery is one of the leading causes of industrial amputations and fatalities. Safety is non-negotiable.

OSHA Requirements (29 CFR 1910.219)

All rotating power transmission components must be guarded if they are: - Less than 7 feet above the floor or working platform - Exposed to contact by workers during normal operations - Located where workers pass by during their duties

Components requiring guards include: - Flywheels, pulleys, and sheaves - Belts and belt drives - Chains and sprockets - Shafts and couplings - Gears and gear drives - Key and setscrews on shafts

Lockout/Tagout (LOTO) — 29 CFR 1910.147

Before performing ANY maintenance on power transmission equipment: 1. Notify all affected employees 2. Shut down the equipment using normal stopping procedure 3. Isolate ALL energy sources (electrical, hydraulic, pneumatic, gravity, stored spring energy) 4. Apply your personal lock and tag 5. Release any stored energy (bleed hydraulic lines, block suspended loads) 6. Verify zero energy — try to start the machine 7. Perform your work 8. Remove your lock/tag only after verifying all personnel are clear

PPE Requirements - Safety glasses with side shields - Hearing protection near operating equipment - No loose clothing, jewelry, long hair, or gloves near rotating equipment - Steel-toed boots - Gloves when handling bearings (but remove near rotating parts)

Common Hazards in Southern California Facilities

• Unguarded belt drives on legacy equipment — especially in older LA County and San Bernardino factories
• Improvised guards removed for maintenance and not replaced
• Working near operating equipment without LOTO during "quick fixes"
• Heat-related fatigue in summer months leading to careless behavior around machinery
• Compressed air used to clean clothing near rotating equipment (prohibited by OSHA)

Service Bearing supplies guards, safety equipment, and safety-compliant components. We can help you identify unguarded hazards during our onsite service visits. Your safety is our priority.