Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
Komatsu Excavator O-Ring Kit 765PCS Multi-Size AS568 Standard NBR O-Ring Seal Maintenance Set
- SKU Options: 56types-765pcs
- Material: NBR
- Hardness: 90±5 Shore A
- Temperature : ‑30℃ ~ +120℃
- Applicable Media: Mineral hydraulic oil, gear oil, grease
- Packing: Impact‑resistant plastic compartment toolbox with printed part‑number reference chart; inner PE bags; outer export carton
1. Product Description
High‑quality O‑ring assortment kit specially engineered for Komatsu construction & mining machinery. Direct replacement for original O‑rings without on‑site re‑measurement, greatly improving field‑repair efficiency.
Standard material is NBR 90 Shore A with excellent oil‑resistance, anti‑extrusion and low compression‑set performance, perfectly matching general hydraulic working conditions for excavators, loaders, bulldozers, graders and dump trucks. HNBR and FKM(Viton) versions are available for high‑temperature, heavy‑duty or coastal salt‑spray harsh sites.
This assortment kit covers most sealing spots of main hydraulic pump, control valve, swing motor, travel motor, hydraulic cylinders, hose fittings, pilot circuits, tension cylinders and flange joints. One kit serves multiple machine models and lowers spare‑parts inventory pressure for repair shops, equipment rental firms and machinery dealers.
2. Key Features
- 100% OEM dimension match: Matches Komatsu 07000‑1 /07002‑1 O‑ring sizes, direct aftermarket replacement.
- Reliable raw material: Premium NBR90 as standard option.
- Wide model coverage: One kit fits multi‑model Komatsu machines, reduces spare‑part stock burden.
- Practical toolbox: Anti‑drop compartment plastic box with printed reference chart for fast lookup on construction site.
- Flexible options: Multiple pcs/size combinations, custom material & packing are available.
- Export‑oriented supply: Low MOQ, short lead‑time, suitable for global repair shops, rental companies and distributors.
3. Technical Test Standard
‑ Dimension tolerance: ±0.05mm
‑ Hardness tolerance: ±5 Shore A
‑ Oil immersion test: ASTM D471
‑ Compression set: ≤20% @100℃ 24h
‑ Burst pressure: ≥100MPa for single o‑ring
4. FAQ
Q: What is difference between NBR and FKM?
A: NBR90 is standard for normal mineral hydraulic oil. FKM Viton is for high‑temperature, heavy‑duty or salt‑spray coastal environment with higher cost.
Q: What options of sets do you offer?
A: 394pcs, 435pcs, 765pcs and 897pcs are common selections. We can adjust combinations according to your market requirement.
Q: What about MOQ & lead‑time?
A: Small trial orders are acceptable. In‑stock items can be shipped within 3‑7 working days.
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