Overview
The Rexnord 1045G20 fastener set is a precision-matched hardware assembly for exposed bolt Falk Lifelign gear couplings in the 1045 coupling size class. This coupling accessory kit supplies all fastening components required for reliable, repeatable assembly of G20 series gear coupling sleeves. Built to OEM specifications, the Rexnord 1045G20 ensures proper bolt torque distribution and coupling balance.
Key Features
- Matched fastener set—bolts, nuts, and lock washers cannot be mixed or substituted per Rexnord design standards
- Exposed bolt configuration for easy field access and maintenance
- Designed for Falk 1045 coupling size in G20 series applications
- Complements triple-crowned Lifelign tooth geometry for reduced backlash and wear
- AGMA standard bolt pattern ensures compatibility with standard gear coupling dimensions
Technical Specifications
- Part Number: 1045G20 / 1045G FSTNR SET EXP BLT
- Coupling Size: 1045
- Series: G20 (Lifelign Gear Coupling)
- Bolt Type: Exposed
- Kit Contents: Fasteners, nuts, lock washers
- Weight: 3.282 kg (7.2 lbs)
- Hub Material: Steel
- EAN: 0782934012419
Typical Applications
The Rexnord 1045G20 fastener set is used in industrial power transmission systems, including:
- Motor-to-pump coupling assemblies
- Compressor drive trains
- Fan and blower drives
- Gearbox input/output shafts
- Machinery requiring misalignment accommodation and vibration damping
Compatibility & Replacements
Compatible With
- Falk 1045 Lifelign gear couplings (G20 series)
- Standard AGMA bolt pattern gear couplings
- Coupling hubs with 1045 size designation
- Industrial automation and motion control machinery
Replaces / Drop-In Replacement For
- OEM fastener kits for Falk 1045G20 gear couplings
- Original equipment manufacturer (OEM) coupling hardware assemblies
- Verify coupling model and fastener specifications before ordering
Works With
- Falk Lifelign G Series couplings (all sizes using exposed bolt configuration)
- Standard industrial coupling installation tools and torque wrenches
- NLGI #1 extreme pressure (EP) grease lubrication systems
- Typical operating temperature range: –30°F to 200°F (–34°C to 93°C)










