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Product Specifications:
| Item | Sure-Flex Sleeve |
| Angular Misalignment | 1° |
| Application | Blowers, Compressors, Conveyors, Mixers, Motors, Pumps |
| Body Style | 4N |
| Coupling Size | 4 |
| Features | 4-Way Flexing Action Absorbs Shock, Misalignment And End Float, Vibration |
| For Misalignment Type | Angular, Parallel |
| Horsepower @ 100 Rpm | 0.25 hp |
| Hp @ Rpm | 4.5 hp @ 1800 RPM, 8.9 hp @ 3600 RPM |
| Hp Rating @ 100 Rpm | 0.25 hp |
| Hp Rating @ 100 Rpm | 1/4 hp |
| Hp Rating @ 1200 Rpm | 2.97 |
| Hp Rating @ 1200 Rpm | 2 97/100 hp |
| Hp Rating @ 1800 Rpm | 4.5 hp |
| Hp Rating @ 1800 Rpm | 4 1/2 hp |
| Hp Rating @ 3600 Rpm | 8.9 hp |
| Hp Rating @ 3600 Rpm | 8 9/10 hp |
| Insert Construction | Two Piece |
| Insert Design | Two-Piece with Retaining Ring |
| Insert Design | Two Piece With Retaining Ring |
| Insert Material | Neoprene |
| Insert Width | 1 1/4" |
| Material | Neoprene |
| Max. Angular Gap Misalignment | 0.043" |
| Max. Angular Misalignment | 1° |
| Max. Parallel Misalignment | 0.01" |
| Max. Speed | 7600 RPM |
| Maximum Operating Temperature | 200°F |
| Minimum Operating Temperature | 0°F |
| Operating Temp. | 0°F to +200°F |
| Outside Dia. | 2.312" |
| Outside Diameter | 2 5/16" |
| Parallel Misalignment | 0.01" |
| Rated Torque | 156 lbs.-in. |
| Resistance Properties | Chemical Resistant, Oil Resistant |
| System Of Measurement | Imperial |
| Torsional Stiffness | 458 lbs.-in./deg. |
Shipping Info:
| Ship weight (kg) | 0.05 |
| Ship height (cm) | 3.3 |
| Ship length (cm) | 8.13 |
| Ship width (cm) | 7.87 |
| HS code | 8483608000 |
| Country of Origin | US |
Product Details:
- TB Wood's 4N coupling sleeve ideal for torque transmission & accommodating shaft misalignment for electric motors, compressors, pumps, mixers, conveyors & blowers
- Accommodates 7 - 21 degree torsional wind up
- Features exceptional torsional flexibility with 4-way flexing action for absorption of shocks, vibrations, misalignments and end float
- Needs no lubrication or maintenance
- Can be operated at temperatures up to 200 degrees F
- ATEX compliant and ISO certified
Product Variants
| Model | Max. Speed | Rated Torque | Coupling Size | Insert Material | Torsional Stiffness | Angular Misalignment | Parallel Misalignment | Outside Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| 3JNS | 9200 RPM | 78 lbs.-in. | 3 | Neoprene | 229 lbs.-in./deg. | 1° | 0.01" | 1 7/8" | €25.35 | |
| 4JNS | 7600 RPM | 156 lbs.-in. | 4 | Neoprene | 458 lbs.-in./deg. | 1° | 0.01" | 2.312" | €31.79 | |
| 5JNS | 7600 RPM | 312 lbs.-in. | 5 | Neoprene | 916 lbs.-in./deg. | 1° | 0.015" | 2.938" | €39.18 | |
| 6JNS | 6000 RPM | 585 lbs.-in. | 6 | Neoprene | 1718 lbs.-in./deg. | 1° | 0.015" | - | €77.82 | |
| 3J | 9200 RPM | 78 lbs.-in. | 3 | EPDM | 229 lbs.-in./deg. | 1° | 0.01" | 1 7/8" | €10.28 | |
| 4J | 7600 RPM | 156 lbs.-in. | 4 | EPDM | 458 lbs.-in./deg. | 1° | 0.01" | 2.312" | €20.33 | |
| 5J | 7600 RPM | 312 lbs.-in. | 5 | EPDM | 916 lbs.-in./deg. | 1° | 0.015" | 2.938" | €40.93 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
TB WOODS 4N Sure-Flex Coupling Sleeve, Size 4, Up To 7600 RPM
€73.46 /unit


