Thaimart SEALTHAI
Direct Engineering Summary:
The Rotary Shaft Oil Seal (Profile TB) (Profile TB / Material FKM) is an industrial-grade sealing solution manufactured from FKM / Viton® Fluorocarbon Elastomer (75–80 Shore A). Engineered to eliminate High-temperature rotary shafts causing conventional NBR seals to harden, crack, and leak prematurely, it supports operating temperatures of -20°C to +200°C (Peak +230°C), pressures of 0.5 – 10 Bar (Profile dependent), and surface speeds of Up to 15 – 35 m/s. Available in stock at SEALTHAI starting from ฿476 THB.
1. Field Problem Analysis & Engineering Solution
In industrial machinery, power transmission gearboxes, and hydraulic cylinders, a leading cause of unplanned downtime is High-temperature rotary shafts causing conventional NBR seals to harden, crack, and leak prematurely. Selecting an inferior elastomer or mismatched profile accelerates lip wear and lubricant leakage.
SEALTHAI Engineering Solution: Engineered with genuine FKM (Viton) fluorocarbon rubber rated for continuous 200°C operation, preventing thermal hardening and chemical swelling.
2. Engineering Specification Grid
| Technical Parameter | Engineering Specification |
|---|---|
| Seal Type & Profile | Rotary Shaft Oil Seal (Profile TB) (Profile: TB) |
| Material Compound | FKM / Viton® Fluorocarbon Elastomer (75–80 Shore A) |
| Operating Temperature | -20°C to +200°C (Peak +230°C) |
| Max Operating Pressure | 0.5 – 10 Bar (Profile dependent) |
| Surface Speed Rating | Up to 15 – 35 m/s |
| Compatible Media | Synthetic engine oils, gear oils, hydraulic fluids, fuels, acids, alkalis, and aggressive chemicals |
3. Available Sizes (ID × OD × THK) & Online Pricing
| (ID × OD × THK) Inner Diameter x Outer Diameter x Thickness (mm) | SKU | Material / Profile | Online Price | Availability | Order |
|---|---|---|---|---|---|
| 57.15-77.8-9.53TB | OS-VI-2398 | FKM (TB) | ฿476 THB | ✓ In Stock (8 pcs) | Buy on Shopee |
4. Comparison: SEALTHAI Industrial Grade vs. Generic Seals vs. OEM Lead Time
| Comparison Metric | SEALTHAI (TB - FKM) | Low-Grade Generic Seal | Imported OEM Backorder |
|---|---|---|---|
| Thermal & Pressure Endurance | Verified (-20°C to +200°C (Peak +230°C) / 0.5 – 10 Bar (Profile dependent)) | Rapid hardening, cracking, or lip extrusion | Verified OEM Spec |
| Machine Downtime | In Stock in Thailand (1–2 Days Express) | Frequent repeat teardown & fluid loss | 2–6 Weeks Import Lead Time |
| Total Cost Efficiency | Optimal Value (From ฿476 THB) | High hidden labor & downtime cost | 3–5x Higher Price |
5. Engineering Installation Checklist & Limitations
- Dimension Verification: Measure the actual shaft diameter (ID), housing bore diameter (OD), and groove width (THK) in millimeters using a calibrated digital vernier caliper.
- Counterface Surface Finish: Ensure the shaft surface roughness is within Ra 0.2 – 0.8 µm with hardness HRC ≥ 45. If the shaft has a wear groove, install a Shaft Repair Sleeve prior to mounting the new seal.
- Lead-In Chamfer & Pre-Lubrication: Verify a 15° – 30° lead-in chamfer on the shaft edge and lightly lubricate the sealing lip before installation to prevent dry-start scoring or garter spring dislodgement.
🛒 Order Online or Consult SEALTHAI Engineers
Ready to ship across Thailand within 1–2 business days. Full corporate tax invoices available.