C
Spring-loaded reinforced metal-cased single-lip oil seal
Premium spring-loaded single-lip rotary shaft seal with heavy duty metal structure. Used for oil or grease retention.
The reinforced metal casing protects the sealing lip from damage or accidental spring dislocation when shaft installation is against the sealing lip. An optimized seal lip with a steel garter spring maintains a constant radial lip force for optimum sealing. The metal case is exposed to the elements and to the fluid; however, the application of an optional sealant coating to the case improves both static sealing and corrosion resistance between the housing and the seal OD. For dirty, dusty or polluted environments, our CS style with additional dust lip should be used.
| Material | Continuous Pressure | Max. Pressure Spike | Temperature | Surface Speed |
|---|---|---|---|---|
| Duralast 8838-LF | 3psi (0.2bar) | 7psi (0.5bar) | -4 to 392°F (-20 to 200°C) | Up to 7,000 fpm (35m/s) |
| Duralast 5117-LF | 3psi (0.2bar) | 7psi (0.5bar) | -13 to 212°F (-25 to 100°C) | Up to 2,600 fpm (13m/s) |
| Fluoroelastomer (FKM),Viton® | 3psi (0.2bar) | 7psi (0.5bar) | -4 to 392°F (-20 to 200°C) | Up to 6,000 fpm (30m/s) |
| Nitrile (NBR) | 3psi (0.2bar) | 7psi (0.5bar) | -13 to 212°F (-25 to 100°C) | Up to 2,400 fpm (12m/s) |
| A Shaft Diameter | CS Cross-section | D Bore Diameter | L | F | C Chamfer | R1 Radius |
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|---|---|---|---|---|---|---|---|---|---|
| Standard Range | Functional Range | Tolerance | * | D= | Tolerance | Tol. +0.010/-0 | min. | max. | |
| 0.200-0.599" | 0.200 - 5.000" | +/-0.003 | 3/16 | A + 0.375 | +/-.001 | 0.262 | 0.210 | 0.040 | 0.020 |
| 0.600-1.299" | 0.200 - 6.000" | +/-0.003 | 1/4 | A + 0.500 | +/-.001 | 0.262 | 0.210 | 0.050 | 0.020 |
| 1.300 - 2.299" | 0.200 - 7.000" | +/-0.003 | 5/16 | A + 0.625 | +/-.001 | 0.325 | 0.265 | 0.050 | 0.020 |
| 2.300 - 3.299" | 0.250 - 10.000" | +/-0.003 | 3/8 | A + 0.750 | +/-.001 | 0.387 | 0.300 | 0.060 | 0.020 |
| 3.300 - 7.999" | 0.500 - 15.000" | +/-0.004 | 1/2 | A + 1.000 | +/-.0015 | 0.512 | 0.425 | 0.090 | 0.030 |
| 8.000 - 15.999" | 1.000 - 63.000" | +/-0.005 | 3/4 | A + 1.500 | +/-.002 | 0.637 | 0.530 | 0.130 | 0.030 |
| 16.000 - 30.999" | 1.000 - 63.000" | +/-0.006 | 3/4 | A + 1.500 | +/-.003 | 0.637 | 0.530 | 0.150 | 0.030 |
| 31.000 - 63.000" | consult with Ahpseals engineering | ||||||||
| *Standard cross-sections (CS) listed and non-standard sizes can be provided for any shaft size up to 63 inches. Surface finish: Shaft (A) plunge ground, zero lead, Ra 8-16µin - Housing (D,L) Ra 32-63µin. Shaft material hardness min. RC45. See Technical Info for more specific information. |
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