Overview
The Rexnord 10287337 Omega E30 Element is a close-coupled elastomeric coupling component engineered to transfer power between misaligned shafts with minimal vibration and noise. Part of Rexnord’s Omega E Series, this flexible coupling element accommodates angular, parallel, and axial misalignment while protecting connected equipment from shock loads and torsional vibration. The E30 size is the most compact in the Omega lineup, delivering robust torque capacity in a space-efficient design ideal for pump drive systems, motor couplings, and compact machinery layouts.
Key Features
- Continuous torque rating: 3650 in-lbs (412 Nm)
- Maximum speed: 5800 rpm
- Close-coupled design with compact 8.25-inch (210 mm) outside diameter
- Urethane (orange) elastomeric material provides vibration damping and misalignment compensation
- High misalignment element style accommodates runout and shaft offset
- Standard imperial cap screws for straightforward installation and maintenance
- Factory-split element design allows easy assembly without hub removal
Technical Specifications
| Coupling Size | E30 |
| Continuous Torque Rating (in-lbs) | 3650 in-lbs |
| Continuous Torque Rating (Nm) | 412 Nm |
| Maximum Speed Rating | 5800 rpm |
| Outside Diameter | 8.25 inches (210 mm) |
| Coupling Style | Close Coupled |
| Element Material | Urethane (Orange) |
| Coupling Type | Elastomeric |
| Element Style | High Misalignment |
| Cap Screws | Standard Imperial |
| Weight | 5.33 lbs (2.414 kg) |
| UPC | 698210000356 |
| Legacy Part Number | 7300035 |
Typical Applications
The Rexnord E30 element is widely used in:
- Centrifugal pump drives and Blackmer pump couplings
- Electric motor to compressor connections
- Gearbox input and output shafts
- Fan and blower motor couplings
- Machine tool spindle drives requiring compact, low-profile coupling geometry
- Sealed or enclosed equipment where space constraints demand minimal coupling footprint
Compatibility & Replacements
Compatible With
- Rexnord Omega coupling hub assemblies (all bore sizes)
- Standard ANSI-flange motors and pump configurations
- Taper-Lock hub systems with carbon steel rough stock bores
- Blackmer pump drive systems
- Close-coupled pump and motor combinations requiring E-size elements
Replaces / Drop-In Replacement For
- Legacy part number 7300035 (direct replacement)
- Rexnord Omega E30 element assemblies from previous production runs
Works With
- All Rexnord Omega E-series coupling hubs and accessories
- Standard industrial shaft mounting systems and bore configurations
- Elastomeric coupling maintenance and repair procedures
- Taper-Lock hub system extensions and adapters
