The Rexnord Omega E140 Elastomeric Coupling Element (Part Number: 10287345) is a genuine OEM replacement designed for Rexnord Omega E140 close-coupled flexible couplings. Manufactured from high-performance orange urethane, it absorbs shock loads, reduces vibration, accommodates shaft misalignment, and provides reliable torque transmission in heavy industrial applications.
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| ✓ Nationwide Delivery | ✓ Industrial B2B Support |
Product Identification
| Field | Value |
|---|---|
| Product Brand | Rexnord |
| Manufacturer | Regal Rexnord |
| Series | Omega |
| Product Type | Elastomeric Coupling Element |
| Size | E140 |
| Ordering Code | 10287345 |
| Alternate Part Number | 7300071 |
| UPC / GTIN | 698210857479 |
Contact our technical sales team with your existing part number, coupling size, or application details for assistance.
Technical Specifications
The E140 is the largest and highest-capacity element in the Omega standard range, delivering 340,200 in-lb (38,440 Nm) continuous torque at a 30 in (762 mm) diameter and 209.34 lb — exactly double the E120’s torque capacity in a package roughly 20% larger in diameter and 2x heavier.
Maximum speed drops to 1,500 rpm, the lowest in the entire Omega range. This makes the E140 the default choice for the most demanding, lowest-speed heavy industrial applications where maximum torque capacity is required.
- • Continuous Torque Rating (in-lb): 340,200 in/lbs
- • Continuous Torque Rating (Nm): 38,440 Nm
- • Coupling Size: E140
- • Coupling Style: Close Coupled
- • Element Material: Urethane (Orange)
- • Major Diameter of Coupling (in): 30 in
- • Major Diameter of Coupling (mm): 762 mm
- • Shoe Coating: Standard Coating
- • Cap Screws: Standard Imperial
- • Coupling Type: Elastomeric
- • Element Style: High Misalignment
- • Maximum Speed Rating (rpm): 1,500 rpm
- • Net Weight: 209.34 LB
Product Overview
The E140 element fits Rexnord Omega E140 close-coupled flexible couplings and is the largest, heaviest, and highest-torque element in the entire Omega standard range, delivering the maximum available torque capacity in the product family. 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 E140 coupling assemblies are also available from Golden Bearing Company.
Compatibility
The Rexnord Omega E140 Elastomeric Coupling Element is compatible with the following components:
- • Omega E140 Close-Coupled Couplings
- • Omega E140 HRB (Pilot Bore) Hubs
- • Omega E140 Finished Bore Hubs
- • Complete Omega E140 Coupling Assemblies
Compatibility depends on proper hub selection and application conditions. Contact our technical team for selection assistance.
Industrial Applications
The E140’s maximum torque capacity and 1,500 rpm speed ceiling make it the default choice for the most demanding, lowest-speed heavy industrial applications, including:
- • Extremely large industrial pumps in maximum heavy-duty, low-speed service
- • Maximum-torque compressors
- • Massive slow-speed fans and blowers
- • Extreme heavy-duty conveyors and mixers under maximum sustained loads
- • General heavy industrial rotating equipment where maximum available torque capacity is required
Application suitability depends on operating conditions, torque requirements, shaft alignment, and OEM recommendations.
Frequently Asked Questions
The Rexnord Omega E140 is the largest and highest-capacity element in the Omega standard range, designed for close-coupled flexible couplings in heavy industrial applications requiring maximum torque capacity.
Part number 10287345 is the genuine Rexnord Omega E140 elastomeric coupling element. It replaces the same size in Omega E140 close-coupled couplings and corresponds to alternate part number 7300071.
The E140 element is designed for use with Rexnord Omega E140 close-coupled couplings. It is compatible with HRB (pilot bore) hubs and finished bore hubs designed for the E140 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 E140 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 →
