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Home Product 8*12*3.5 (Premium Grade) Heavy-Duty O-Ring Seal, Silicone Gasket for Hydraulic & Automotive Systems
8*12*3.5 (premium grade)

8*12*3.5 (Premium Grade) Heavy-Duty O-Ring Seal, Silicone Gasket for Hydraulic & Automotive Systems

8x12x3.5 premium oil seals
high-performance metric shaft seals
heavy-duty 8mm bore seals
8*12*3.5 (premium grade)
8x12x3.5 premium oil seals provide high-performance sealing solutions for heavy-duty 8mm bore applications. These metric shaft seals feature precision engineering to withstand extreme conditions while ensuring leak resistance and extended service life in industrial machinery or automotive systems.
Categories:Power Transmission
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Product Description

The 8x12x3.5 premium oil seals are high-performance metric shaft seals designed for demanding industrial applications. Featuring a heavy-duty 8mm bore, these seals are precision-engineered to accommodate radial shafts in automotive, machinery, and hydraulic systems. Constructed with advanced elastomer compounds, they operate reliably across temperatures from -40°C to +150°C and withstand pressures up to 30 bar. The 8x12x3.5 mm dimensions ensure compatibility with standardized housings, while their triple-lip design enhances contamination resistance and lubrication retention. Key advantages include exceptional wear resistance, chemical compatibility with oils and greases, and extended service life under high-speed rotation. Common applications include pumps, gearboxes, and agricultural equipment. Though optimized for durability, installation requires precise alignment to prevent premature wear. These seals excel in harsh environments requiring robust shaft protection and minimal leakage.
Parameter Specification
Product Model 8x12x3.5 premium oil seals
Bore Diameter 8mm ±0.1 (heavy-duty design)
Outside Diameter 12mm ±0.2 (metric sizing)
Width 3.5mm ±0.1
Material Nitrile (NBR)/Fluorocarbon (FKM)
Temperature Range -40°C to +120°C (NBR)
-25°C to +200°C (FKM)
Pressure Rating Up to 3 bar static
Speed Limit 5 m/s linear motion
Applications High-performance metric shaft seals for automotive/industrial
Standards ISO 6194, DIN 3760
question:What shipping methods do you offer?
answer:We support DHL, FedEx, UPS and other major shipping methods.
question:What payment options are available?
answer:We accept TT, PayPal, and other major payment methods.
question:Why is shipping expensive? Any cheaper options?
answer:Cost depends on speed/weight. We offer sea freight or discounted express for bulk orders.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:What shipping methods do you offer?
answer:We support DHL, FedEx, UPS and other major shipping methods.
question:What payment options are available?
answer:We accept TT, PayPal, and other major payment methods.
question:Why is shipping expensive? Any cheaper options?
answer:Cost depends on speed/weight. We offer sea freight or discounted express for bulk orders.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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