E-Type OMEGA Elastomeric Coupling | Radial Installation, 21.5–38442 N·m

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E-Type OMEGA Elastomeric Coupling Replacement– Radial Installation, Split-in-Half Element, Maintenance-Free

Model Number
Check below, custom

Product Description

E-Type OMEGA Elastomeric Coupling – Radial Installation, Split-in-Half Element, Maintenance-Free

The Apexcoupling E-Type OMEGA series is a high-performance elastomeric coupling featuring a unique split-in-half flexible element design for radial installation without moving connected equipment. Manufactured from SC45# steel hubs with zinc-plated finish and a high-strength polyurethane elastomer, this coupling delivers exceptional vibration damping, misalignment compensation, and maintenance-free operation. The two-piece elastomer design allows for quick replacement without disturbing shafts or realigning machinery – significantly reducing downtime. With torsional flexibility to absorb shock loads and protect connected equipment, the E-Type OMEGA coupling is the ideal solution for aggregate processing, air handling, construction machinery, food & beverage, forestry, material handling, mining, pumps & compressors, heavy trucks, and steel mills.

✅ Direct replacement for Rexnord Omega® E-series – same dimensions, same performance, better value. Split-in-half element – replace without moving hubs or realigning equipment. Maintenance-free – no lubrication required.

Key Technical Specifications

Parameter	Value
Brand	Apexcoupling
Model Series	E-Type OMEGA (E Series)
Also Known As	Omega coupling, tire coupling, radial installation coupling
Type	Elastomeric / Flexible / Tire coupling
Element Design	Split-in-half – easy replacement without moving hubs
Hub Material	SC45# steel (quenched & tempered)
Surface Treatment	Zinc-plated – smooth, corrosion-resistant
Elastomer Material	High-strength polyurethane – excellent vibration damping, wear resistance
Lubrication	None required – maintenance-free
Installation	Radial – no axial movement required
Misalignment Compensation	Angular, parallel, and axial
Torsional Flexibility	Absorbs shock loads and torsional vibration
Operating Temperature	-40°C to +93°C (polyurethane element)
Customized support	OEM
Applicable Industries	Aggregate, air handling, construction, food & beverage, forestry, material handling, mining, pumps & compressors, heavy trucks, steel
Place of Origin	Guangdong, China

🔧 Custom bores, keyways, and special elastomer materials available. Contact us with your specifications.

E-Type OMEGA Series – Model Range & Specifications

Model	Max Bore (mm)	Min Bore (mm)	Power Rating	Rated Torque (N·m)	Max RPM	OD (mm)	Hub Length (mm)	Spacing (mm)	Max Hub Dia. (mm)	Min Hub Dia. (mm)	Overall Length (mm)	Weight (kg)
E2-M	28	13	0.0023	21.5	7500	89	24	36	46	47	38	84	94	0.55
E3-M	34	13	0.0043	41.2	7500	102	38	8	46	59	50	84	122	1.1
E4-M	42	13	0.0066	62	7500	116	38	8	46	66	57	84	122	1.4
E5-M	48	13	0.011	104.5	7500	137	44	8	59	80	70	97	147	2.5
E10-M	55	13	0.011	163.8	7500	162	44	8	59	93	84	97	147	3.7
E20-M	60	21	0.027	260	6600	184	50	13	65	114	102	113	165	5.9
E30-M	75	21	0.043	412	5800	210	58	12	69	138	118	125	182	9.6
E40-M	85	26	0.066	622	5000	241	63	8	75	168	146	135	202	15.9
E50-M	90	26	0.09	864	4200	279	70	11	91	207	152	151	230	24.5
E60-M	105	31	0.148	1412	3800	318	82	8	97	222	165	173	262	32.8
E70-M	120	31	0.262	2486	3600	356	85	18	109	235	175	189	281	39
E80-M	155	31	0.467	4463	2000	406	114	17	149	286	240	245	377	77
E100-M	171	48	1	9605	1900	533	140	44	95	359	267	324	375	111
E120-M	190	48	2	19221	1800	635	152	57	124	448	305	362	429	193
E140-M	229	48	4	38442	1500	762	178	76	127	530	381	432	483	339

📐 Additional sizes and custom dimensions available upon request. Contact our engineering team for custom sizing.

ES Series – Extended Spacer OMEGA Couplings

For applications requiring greater shaft spacing, the ES Series (Extended Spacer OMEGA) offers the same split-element design with adjustable shaft gap:

Model	Max RPM	OD (mm)	Hub Length (mm)	Spacing Range (mm)	Min Hub Dia. (mm)	Max Hub Dia. (mm)	Weight (kg)
ES2-R-M	7500	89	24	91–100	47	38	146–149	1.0
ES3-R-M	7500	102	38	85–140	59	50	184–216	1.38
ES4-R-M	7500	116	38	85–140	66	57	184–216	2.3
ES5-R-M	7500	137	44	89–140	80	70	184–228	3.4
ES10-R-M	7500	162	44	89–140	93	84	184–228	4.7
ES20-M	4800	184	50	67–180	114	102	238–280	7.1
ES30-M	4200	210	58	54–180	138	118	238–293	11.4
ES40-M	3600	241	63	41–180	168	146	238–307	18.2
ES50-M	3100	279	70	28–180	207	152	238–319	27.3
ES60-M	2800	318	82	66–250	222	165	318–415	38.2
ES70-M	2600	356	85	59–250	235	175	318–421	46.4
ES80-M	1800	406	114	37–250	286	240	318–478	81.8

💡 ES Series features an adjustable spacer design – one coupling accommodates multiple shaft spacings, reducing inventory requirements.

Product Structure – Split-in-Half Element Design

Two SC45# Steel Hubs – Quenched & tempered, zinc-plated for corrosion resistance.
Split-in-Half Polyurethane Element – Two-piece design allows for radial installation without moving hubs.
Radial Bolting – Quick and easy assembly with self-locking bolts.

💡 How it works: The E-Type OMEGA coupling consists of two steel hubs and a split-in-half polyurethane element. The two-piece element is installed radially (from the outside in) without disturbing the connected shafts or requiring equipment realignment. The polyurethane element transmits torque while absorbing shock loads and compensating for misalignment. The torsionally soft design protects connected equipment from shock loads and torsional vibration. Visual inspection is possible without disassembly.

Product Features & Advantages

Advantage	Benefit
Split-in-Half Element Design	Replace element without moving hubs, disconnecting shafts, or realigning equipment – reduces downtime by up to 80%
Radial Installation	Install element from the outside – no axial movement required, simplifies maintenance in tight spaces
Maintenance-Free Polyurethane	No lubrication required – eliminates grease contamination and reduces maintenance costs
Excellent Vibration Damping	Absorbs shock loads and torsional vibration – protects bearings, seals, and connected equipment
High Misalignment Capacity	Compensates angular, parallel, and axial misalignment – reduces stress on connected components
Visual Inspection	Element condition can be inspected without disassembly – simplifies preventive maintenance
Torsionally Soft Design	Reduces impact of shock loads – extends equipment service life
Interchangeable Hubs	Standard hubs work with both close-coupled (E) and spacer (ES) designs – reduces inventory
Adjustable Spacer (ES Series)	One coupling accommodates different shaft spacings – reduces inventory requirements
Zinc-Plated Steel Hubs	Corrosion-resistant and smooth finish – long service life
Wide Application Range	Aggregate, mining, steel, pumps, compressors, food & beverage, construction
Direct Rexnord Omega Replacement	Same dimensions, same performance – no design changes required

Why Choose OMEGA Couplings?

OMEGA couplings offer several distinct advantages over traditional elastomeric couplings:

Feature	OMEGA Coupling	Traditional Jaw/Spider Coupling
Element replacement	Split-in-half – no hub removal	Requires hub separation
Installation	Radial – from outside	Axial – requires shaft movement
Maintenance	Visual inspection without disassembly	Requires disassembly for inspection
Lubrication	None – maintenance-free	None – maintenance-free
Misalignment capacity	High – angular, parallel, axial	Moderate
Vibration damping	Excellent – torsionally soft	Good
Service life	2–4 years normal use	Varies

Applications

Aggregate & Mining – Crushers, conveyors, feeders, mills
Air Handling – Fans, blowers, HVAC equipment
Construction Machinery – Mixers, hoists, material handling
Food & Beverage – Processing equipment, packaging machinery
Forestry Products – Sawmills, wood processing
Material Handling – Conveyors, elevators, stackers
Pumps & Compressors – Centrifugal pumps, air compressors, vacuum pumps
Heavy Trucks – Auxiliary drives, power take-off
Steel Mills – Rolling mills, continuous casting, shears
General Industry – Any application requiring shock absorption and misalignment compensation

Why Choose Apex Coupling for E-Type OMEGA Couplings?

Advantage	Description
Factory Direct	Competitive B2B pricing – no middlemen
Direct Rexnord Omega Replacement	Same dimensions, same performance – no design changes required
Premium SC45# Steel	Quenched & tempered, zinc-plated – high strength and corrosion resistance
High-Strength Polyurethane	Excellent vibration damping, wear resistance, and long service life
Split-in-Half Element	Quick replacement – no hub removal or realignment required
Maintenance-Free	No lubrication – reduces operating costs
Wide Model Range	E2-M to E140-M – covers 21.5–38442 N·m
ES Series Available	Adjustable spacer – one coupling for multiple shaft spacings
OEM Customization	Custom bores, keyways, and special elastomer materials

FAQ

Q: What is an OMEGA coupling?
A: An OMEGA coupling (also called a tire coupling or elastomeric coupling) is a flexible coupling that uses a split-in-half polyurethane element to transmit torque while absorbing shock and compensating for misalignment. The unique split design allows for radial installation without moving hubs.

Q: What is the advantage of the split-in-half element design?
A: The split-in-half element allows for quick replacement without moving the hubs, disconnecting shafts, or realigning equipment – reducing downtime by up to 80%.

Q: What materials are used?
A: The hubs are made of SC45# steel (quenched & tempered, zinc-plated). The element is made of high-strength polyurethane – maintenance-free, excellent vibration damping, and long service life.

Q: What is the torque and speed range?
A: Rated torque ranges from 21.5–38442 N·m (E2-M to E140-M). Maximum speed ranges from 1500–7500 RPM depending on model.

Q: Does the coupling require lubrication?
A: No. The OMEGA coupling is maintenance-free – no lubrication required.

Q: What misalignment can the coupling compensate for?
A: The polyurethane element compensates for angular, parallel, and axial misalignment – reducing stress on connected equipment.

Q: Is this a direct replacement for Rexnord Omega?
A: Yes. The E-Type OMEGA series is fully interchangeable with Rexnord Omega® E-series couplings – same dimensions, same performance.

Q: What is the ES series?
A: The ES series (Extended Spacer) features an adjustable spacer design – one coupling accommodates different shaft spacings, reducing inventory requirements.

Q: Can I get a custom coupling?
A: Yes. We offer OEM customization – custom bores, keyways, and special elastomer materials available.

Q: What is the service life?
A: Under normal use, the OMEGA coupling provides 2–4 years of service life [0†L29].

Request a Quote

Send us your model (e.g., E20-M, E50-M), bore size, torque, speed, and application details. Our engineers will recommend the optimal model and provide a quotation within 24 hours.