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SC Oil Seal Spec Table
SC Oil Seal Specifications — 12 sizes
KS B 2804
A single-lip (SC-type) oil seal for oil sealing only. Lower friction and heat than TC type; suitable for light-load, low-speed rotating shafts in clean environments.
Practical Notes
- Single lip (oil sealing only) — lower friction and heat than TC. For light-load, low-speed shafts in clean environments.
- Use TC type in dusty environments. SC type has no dust-blocking capability.
KSSC Oil Seal
12 sizes| Nominal (d×D×b) | Shaft d (mm) | Housing D (mm) | Width b (mm) | Material | Standard |
|---|---|---|---|---|---|
| 10×22×7 | 10 | 22 | 7 | NBR | KS B 2804 |
| 15×30×7 | 15 | 30 | 7 | NBR | KS B 2804 |
| 20×35×7 | 20 | 35 | 7 | NBR | KS B 2804 |
| 25×42×7 | 25 | 42 | 7 | NBR | KS B 2804 |
| 30×47×7 | 30 | 47 | 7 | NBR | KS B 2804 |
| 35×52×8 | 35 | 52 | 8 | NBR | KS B 2804 |
| 40×60×10 | 40 | 60 | 10 | NBR | KS B 2804 |
| 50×70×10 | 50 | 70 | 10 | NBR | KS B 2804 |
| 60×80×10 | 60 | 80 | 10 | NBR | KS B 2804 |
| 70×90×10 | 70 | 90 | 10 | NBR | KS B 2804 |
| 80×100×10 | 80 | 100 | 10 | NBR | KS B 2804 |
| 100×125×12 | 100 | 125 | 12 | NBR | KS B 2804 |
Key Features
- Single-lip (SC) design for simple oil sealing only; lower friction and heat generation than TC type
- Suited for clean environments with minimal dust; lip contacts shaft directly without dust lip
- KS B 2804; more economical than TC type; applied to light-load, low-speed shafts
Key Applications
Gearbox small shaft sealing, agricultural/construction machinery shaft sealing, clean internal cylinder seals
FAQ
How much less friction does SC have vs TC?
About 30–50% less friction than TC due to no dust lip contact. Advantageous for high-speed rotation or minimal energy loss requirements.