Thaimart SEALTHAI
Direct Engineering Summary:
The Industrial O-Ring Seal (Profile O-RING / Material NBR) is an industrial-grade sealing solution manufactured from Industrial Nitrile Elastomer NBR (70–75 Shore A). Engineered to eliminate Lubricant leakage around rotating shafts and dust ingress causing premature bearing failure, it supports operating temperatures of -30°C to +100°C (Peak +120°C), pressures of Up to 100 Bar, and surface speeds of Up to 12 – 15 m/s. Available in stock at SEALTHAI starting from ฿143 THB.
1. Field Problem Analysis & Engineering Solution
In industrial machinery, power transmission gearboxes, and hydraulic cylinders, a leading cause of unplanned downtime is Lubricant leakage around rotating shafts and dust ingress causing premature bearing failure. Selecting an inferior elastomer or mismatched profile accelerates lip wear and lubricant leakage.
SEALTHAI Engineering Solution: Precision molded to DIN 3760 / ISO 6194 with carbon steel casing and garter spring for reliable oil retention and dust exclusion.
2. Engineering Specification Grid
| Technical Parameter | Engineering Specification |
|---|---|
| Seal Type & Profile | Industrial O-Ring Seal (Profile: O-RING) |
| Material Compound | Industrial Nitrile Elastomer NBR (70–75 Shore A) |
| Operating Temperature | -30°C to +100°C (Peak +120°C) |
| Max Operating Pressure | Up to 100 Bar |
| Surface Speed Rating | Up to 12 – 15 m/s |
| Compatible Media | Mineral oils, engine oils, gear lubricants, standard hydraulic fluids, greases, and water |
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 |
|---|---|---|---|---|---|
| N70-3.5x1.5/50วง | OR-NB-003.50-01.50N7 | NBR (O-RING) | ฿179 THB | ✓ In Stock (733 pcs) | Buy on Shopee |
| N70-19x1.5/25วง | OR-NB-019.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (201 pcs) | Buy on Shopee |
| N70-66x1.5/10วง | OR-NB-066.00-01.50N7 | NBR (O-RING) | ฿161 THB | ✓ In Stock (45 pcs) | Buy on Shopee |
| N70-88x1.5/5วง | OR-NB-088.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (33 pcs) | Buy on Shopee |
| N70-22.5x1.5/25วง | OR-NB-022.50-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (325 pcs) | Buy on Shopee |
| N70-19.5x1.5/25วง | OR-NB-019.50-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (576 pcs) | Buy on Shopee |
| N70-98x1.5/5วง | OR-NB-098.00-01.50N7 | NBR (O-RING) | ฿161 THB | ✓ In Stock (27 pcs) | Buy on Shopee |
| N70-2x1.5/50วง | OR-NB-002.00-01.50N7 | NBR (O-RING) | ฿179 THB | ✓ In Stock (245 pcs) | Buy on Shopee |
| N70-53x1.5/10วง | OR-NB-053.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (63 pcs) | Buy on Shopee |
| N70-65x1.5/10วง | OR-NB-065.00-01.50N7 | NBR (O-RING) | ฿161 THB | ✓ In Stock (29 pcs) | Buy on Shopee |
| N70-56x1.5/10วง | OR-NB-056.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (127 pcs) | Buy on Shopee |
| N70-10.5x1.5/50วง | OR-NB-010.50-01.50N7 | NBR (O-RING) | ฿179 THB | ✓ In Stock (191 pcs) | Buy on Shopee |
| N70-94x1.5/5วง | OR-NB-094.00-01.50N7 | NBR (O-RING) | ฿161 THB | ✓ In Stock (37 pcs) | Buy on Shopee |
| N70-1.85x1.5/50วง | OR-NB-001.85-01.50N7 | NBR (O-RING) | ฿179 THB | ✓ In Stock (796 pcs) | Buy on Shopee |
| N70-6.5x1.5/50วง | OR-NB-006.50-01.50N7 | NBR (O-RING) | ฿179 THB | ✓ In Stock (546 pcs) | Buy on Shopee |
| N70-54x1.5/10วง | OR-NB-054.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (536 pcs) | Buy on Shopee |
| N90-5.5x1.5/25วง | OR-NB-005.50-01.50N9 | NBR (O-RING) | ฿143 THB | ✓ In Stock (23 pcs) | Buy on Shopee |
| N70-21x1.5/25วง | OR-NB-021.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (170 pcs) | Buy on Shopee |
| N70-2.8x1.5/50วง | OR-NB-002.80-01.50N7 | NBR (O-RING) | ฿179 THB | ✓ In Stock (1559 pcs) | Buy on Shopee |
| N90-3.5x1.5/25วง | OR-NB-003.50-01.50N9 | NBR (O-RING) | ฿143 THB | ✓ In Stock (723 pcs) | Buy on Shopee |
| N70-57x1.5/10วง | OR-NB-057.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (60 pcs) | Buy on Shopee |
| N70-62x1.5/10วง | OR-NB-062.00-01.50N7 | NBR (O-RING) | ฿161 THB | ✓ In Stock (320 pcs) | Buy on Shopee |
| N70-51x1.5/10วง | OR-NB-051.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (607 pcs) | Buy on Shopee |
| N70-16.5x1.5/25วง | OR-NB-016.50-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (31 pcs) | Buy on Shopee |
| N70-58x1.5/10วง | OR-NB-058.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (370 pcs) | Buy on Shopee |
| N70-91x1.5/5วง | OR-NB-091.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (23 pcs) | Buy on Shopee |
| N70-96x1.5/5วง | OR-NB-096.00-01.50N7 | NBR (O-RING) | ฿161 THB | ✓ In Stock (47 pcs) | Buy on Shopee |
| N70-97x1.5/5วง | OR-NB-097.00-01.50N7 | NBR (O-RING) | ฿161 THB | ✓ In Stock (46 pcs) | Buy on Shopee |
| N70-63x1.5/10วง | OR-NB-063.00-01.50N7 | NBR (O-RING) | ฿161 THB | ✓ In Stock (449 pcs) | Buy on Shopee |
| N70-52x1.5/10วง | OR-NB-052.00-01.50N7 | NBR (O-RING) | ฿143 THB | ✓ In Stock (50 pcs) | Buy on Shopee |
4. Comparison: SEALTHAI Industrial Grade vs. Generic Seals vs. OEM Lead Time
| Comparison Metric | SEALTHAI (O-RING - NBR) | Low-Grade Generic Seal | Imported OEM Backorder |
|---|---|---|---|
| Thermal & Pressure Endurance | Verified (-30°C to +100°C (Peak +120°C) / Up to 100 Bar) | 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 ฿143 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.