Silicone Rubber V-Ring – High-Temperature Axial Seals for Sanitary & Industrial Excellence

Silicone Rubber V-Rings (also known as VMQ V-Rings) are specialized axial face seals used primarily as deflectors or front seals for bearings. Unlike radial shaft seals, V-rings seal against a counterface perpendicular to the shaft, providing an effective barrier against dust, moisture, and fluid splashes while allowing for significant shaft misalignment and run-out.Manufactured from high-purity Silicone (VMQ), these seals are ideal for environments requiring extreme thermal stability (-60°C to +250°C) and superior hygiene. Available in standard VA, VS, VL, and VE profiles, our Silicone Rubber V-Rings are the preferred choice for food processing, medical devices, and high-speed industrial machinery where contamination-free performance is critical.

Rubber v ring

Performance Advantages

Thermal Stability & Sanitary Purity

Our Silicone Rubber V-Rings are engineered to outperform standard rubbers in extreme conditions, ensuring long-term flexibility and sealing integrity.

◌ Extreme Temperature Range: Remains flexible from -60°C and maintains sealing compression up to +250°C.
◌ Food & Medical Grade: Fully compliant with FDA 21 CFR 177.2600, NSF-61, and WRAS standards.
◌ Low Frictional Torque: The flexible lip design exerts minimal radial pressure, reducing power loss.
◌ Misalignment Tolerance: Unique design accommodates shaft tilt and eccentricities without losing seal contact.

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Standard Profile Selections

✬ VA Profile (Standard)

The most common type with a straight back, available for shafts from 3mm to 2000mm.

✬ VS Profile (Heavy Duty)

Reinforced back for applications requiring a tighter fit on the shaft at higher speeds.

✬ VL Profile (Compact)

Thin profile designed for compact housings where axial space is restricted.

✬ VE Profile (Large Size)

Engineered for very large diameter shafts in heavy industry and custom power generation.

Engineering Material Selection

Material Grade	Key Performance Features	Standard Applications
High-Purity VMQ	Odorless, non-toxic, extreme high/low temp resistance	Food processors, Beverage bottling
High-Tear Silicone	Enhanced mechanical toughness and pull resistance	Dynamic seals in industrial mixers
Fluorosilicone (FVMQ)	Resistant to fuels, oils, and aggressive chemicals	Aircraft fuel systems, chemical tanks
Steam-Grade EPDM	Excellent hot water/steam ozone defense	SIP/CIP sterilization systems

Global Industry Integration

🍱 Food & Beverage

Used in blenders, milk lines, and filling machines to prevent lubricant contamination.

🏥 Healthcare & Lab

Precision seals for medical instrumentation and sterile laboratory equipment.

🏭 Industrial HVAC

Sealing large air handling units and industrial fans against dust and moisture.

˙𐃷˙ Custom Manufacturing Capabilities

We support both standard sizes and bespoke engineering for your unique axial sealing requirements.

◌ Hardness Customization: Available from 20 Shore A up to 90 Shore A.
◌ Precision Color Matching: Any RAL or Pantone color code for brand alignment.
◌ Rapid Prototyping: Custom mold development for unique cross-sections and large diameters.

⤷ Extreme Environmental Stability ⤶

Technical Durability Metrics

Silicone is selected for V-Rings because of its inorganic backbone, which provides resistance to aging that far exceeds NBR or EPDM in hot environments.

◌ UV & Ozone Resistance: Exceptional performance in outdoor and sun-exposed machinery.
◌ Low Compression Set: Maintains lip tension even after years of continuous operation at high heat.
◌ Hydrophobic Surface: Naturally repels water and prevents bacterial biomass buildup.

Installation & Assembly Guide

˙𐃷˙ Professional Assembly Steps

01. Surface Prep: Ensure the counterface (where the lip slides) is smooth and polished to Ra 0.5-0.8µm.
02. Orientation Check: Ensure the V-ring lip points toward the medium or contaminant being excluded.
03. Proper Stretching: V-rings are designed to be stretched onto the shaft (~5-8% stretch) for a secure fit.
04. Centering: Verify the seal is perpendicular to the shaft axis to prevent uneven lip wear.

Packaging & Shipping

📦 Packaging Options

We provide flexible packaging solutions based on product size, order quantity, protection requirements, and customer preferences. Both standard and special packaging options are available to ensure safe delivery and convenient handling.

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Category	Packaging Type
Standard Packaging	Large Poly Bags (Bulk Industrial Pack)
	Small Poly Bags (Counted Packs for Sterile Kits)
	Foam / Bubble Protective Packaging
Special Packaging	Blister Packaging for medical/retail sets
	Inflatable Packaging for heavy-duty protection
	Plastic Heat Shrink Packaging + Cardboard Reinforcement
	Sleeve Packaging (Protective Tubes for sealing lips)
Customization Available: Labels, part numbers, barcodes, batch info, or customer branding upon request

🚚 Shipping & Logistics

We offer multiple shipping methods with flexible delivery options to meet your project timelines.

Item	Details
Shipping Methods	Express (DHL / FedEx / UPS), Air Freight, Sea Freight
Delivery Time	Express: 3–5 days \| Air: 5–7 days \| Sea: 25–35 days
Export Packaging	Standard export cartons, palletized for secure transport
Trade Terms	EXW, FOB, CIF, DDP / DDU available
Shipping Port	Xiamen, China