The Rexnord Omega E50 Elastomeric Coupling Element (Ordering Code: 10287339) is a genuine replacement element for Rexnord Omega E50 close-coupled elastomeric couplings. Manufactured from high-performance orange urethane, it is designed to absorb shock loads, reduce vibration, accommodate shaft misalignment, and provide reliable torque transmission in demanding industrial applications.
| ✓ Genuine Rexnord Products | ✓ Technical Assistance |
| ✓ Nationwide Delivery | ✓ Industrial B2B Support |
Product Identification
| Field | Value |
|---|---|
| Product Brand | Rexnord |
| Manufacturer | Regal Rexnord |
| Series | Omega |
| Product Type | Elastomeric Coupling Element |
| Size | E50 |
| Ordering Code | 10287339 |
| Alternate Part Number | 7300045 |
| UPC / GTIN | 698210000455 |
Contact our technical sales team with your existing part number, coupling size, or application details for assistance.
Technical Specifications
- • Continuous Torque Rating (in-lb): 7,650 in/lbs
- • Continuous Torque Rating (Nm): 864 Nm
- • Coupling Size: E50
- • Coupling Style: Close Coupled
- • Element Material: Urethane (Orange)
- • Major Diameter of Coupling (in): 11 in
- • Major Diameter of Coupling (mm): 280 mm
- • Shoe Coating: Standard Coating
- • Cap Screws: Standard Imperial
- • Coupling Type: Elastomeric
- • Element Style: High Misalignment
- • Maximum Speed Rating (rpm): 4,200 rpm
- • Net Weight: 9.48 LB
Rexnord Omega E50 Elastomeric Coupling Element – Product Overview
The E50 element fits Rexnord Omega E50 close-coupled flexible couplings and closes out the E10–E50 mid-range torque tier with its largest torque jump and steepest speed reduction to date. Its split urethane design absorbs shock, dampens vibration, and tolerates shaft misalignment, while the split-element construction allows in-place replacement without disturbing connected equipment.
Matching HRB (pilot bore) hubs, finished bore hubs, and complete E50 coupling assemblies are also available from Golden Bearing Company.
Compatibility
The Rexnord Omega E50 Elastomeric Coupling Element is compatible with the following components:
- • Omega E50 Close-Coupled Couplings
- • Omega E50 HRB (Pilot Bore) Hubs
- • Omega E50 Finished Bore Hubs
- • Complete Omega E50 Coupling Assemblies
Compatibility depends on proper hub selection and application conditions. Contact our technical team for selection assistance.
Rexnord Omega E50 Elastomeric Coupling Element – Industrial Applications
The E50’s high torque and reduced speed ceiling make it suited to slower, heavy-duty rotating equipment, including:
- • Large industrial pumps at reduced operating speeds
- • Heavy-duty compressors requiring high sustained torque
- • Large fans and blowers on slow-speed drive trains
- • Heavy-duty conveyors and mixers
- • General rotating equipment where torque, not speed, is the primary driver
Application suitability depends on operating conditions, torque requirements, shaft alignment, and OEM recommendations.
Frequently Asked Questions
The Rexnord Omega E50 is a mid-to-heavy-duty elastomeric coupling element designed for close-coupled flexible couplings in industrial applications requiring high torque at moderate speeds.
Part number 10287339 is the genuine Rexnord Omega E50 elastomeric coupling element. It replaces the same size in Omega E50 close-coupled couplings and corresponds to alternate part number 7300045.
The E50 element is designed for use with Rexnord Omega E50 close-coupled couplings. It is compatible with HRB (pilot bore) hubs and finished bore hubs designed for the E50 size.
Yes. The split-element design allows in-place replacement without disturbing connected equipment, minimizing downtime on heavy industrial machinery.
Signs of wear include visible cracking, hardening, or deformation of the urethane element, increased vibration, or loss of torque transmission capability. Regular inspection is recommended.
Yes. Golden Bearing Company is an Authorized Regal Rexnord Distributor, supplying only genuine, OEM-sourced Rexnord Omega coupling elements.
About Rexnord Omega Elastomeric Couplings
Rexnord Omega Elastomeric Couplings are non-lubricated, split-in-half tire couplings engineered for reliable power transmission, vibration damping, and easy replace-in-place maintenance across 16 sizes from E2 to E140. See the full Omega series overview and size range →
Why Choose Golden Bearing Company
- ✓ Authorized Regal Rexnord Distributor
- ✓ Replacement Elements, Hubs & Complete Couplings
- ✓ Technical Product Selection Assistance
- ✓ OEM & MRO Support
- ✓ Bulk Order Support
- ✓ Industrial Quotations
- ✓ GST Tax Invoice
- ✓ Complete Omega Product Range
- ✓ Technical Support Available
Complete Rexnord Omega product support is available, including replacement elements, HRB (pilot bore) hubs, finished bore hubs, and complete coupling assemblies. Contact us for current availability and technical assistance.
Available Omega Sizes
Not sure whether the E50 is the correct size? Compare all Rexnord Omega coupling element sizes →
Rexnord Omega elastomeric couplings are available in both standard and spacer configurations to suit a wide range of industrial power transmission applications.
Standard Series
Spacer Series
Request a Quote
Contact our technical sales team for current availability, pricing, lead time, product selection assistance, or bulk industrial quotations. Click here to contact us →
