Phone: +86-574-87227822          E-Mail:
Home » Products » Rubber Seal » Valve Steam Seal » Motorcycle Valve Stem Seal


Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

Motorcycle Valve Stem Seal

Motorcycle valve stem seals are essential components located in the engine's cylinder head, specifically around the valve stems. These seals play a crucial role in regulating the flow of engine oil and providing a reliable seal for the engine's valves. They are a vital part of the valve train system in all types of motorcycles, ranging from small scooters to high-performance sport bikes and touring motorcycles.

PDF Export

Basic Info:

Motorcycle Valve Stem Seal

Boman Motorcycle Valve Stem Seal Advantages:

1. Oil Control: Valve stem seals help in controlling the progression of oil in the motor. They keep extreme oil from entering the burning chamber and greasing up the valve stems, which can prompt oil utilization and fouled flash attachments. Legitimate oil control guarantees productive motor execution and lessens the requirement for incessant oil top-ups.

2. Diminished Oil Spillage: Valve stem seals make a tight seal between the valve stem and the valve guide, keeping oil from spilling into the ignition chamber. This aides in keeping up with the right air-fuel blend and ignition process, further developing motor productivity and diminishing outflows.

3. Further developed Pressure: Valve stem seals add to keeping up with ideal pressure in the motor chambers. By keeping oil from spilling past the valve stems, they help in keeping up with the legitimate seal between the valves and the valve seats. This guarantees proficient burning and most extreme power yield from the motor.

4. Broadened Motor Life: Appropriately working valve stem seals help in lessening mileage on the valve stems and valve guides. They keep extreme oil from arriving at these parts, which can make sped up wear and lead valve guide and stem harm. By saving the uprightness of these motor parts, valve stem seals add to the life span of the motor.

5. Upgraded Execution: The utilization of top notch valve stem seals can add to further developed motor execution. By forestalling oil spillage and keeping up with appropriate pressure, they help in boosting power result and eco-friendliness. This can bring about smoother speed increase, better choke reaction, and by and large upgraded execution of the bike.

6. Cost Reserve funds: By decreasing oil utilization and forestalling motor harm, appropriately working valve stem seals can prompt expense reserve funds over the long haul. They assist in limiting the requirement for oil with fixing ups, decreasing upkeep and fix costs related with motor harm brought about by oil spillage.

7. Enhanced Engine Performance: By maintaining proper lubrication and preventing oil burning, valve stem seals help the engine run smoothly and maintain its power output, contributing to better overall performance.

8. Reduced Risk of Engine Damage: Without properly functioning valve stem seals, excessive oil leakage can lead to carbon buildup, valve sticking, and other engine issues. Well-maintained valve stem seals reduce the risk of engine damage and costly repairs.

9. Longevity: By protecting the valves, valve guides, and other engine components from excessive wear and oil contamination, valve stem seals contribute to the engine's longevity and durability.

10. Increased Valve Lifespan: With minimized oil leakage, valve stem seals help extend the lifespan of the engine's valves, reducing the need for premature valve replacements.

11. Smoother Idling: Properly functioning valve stem seals contribute to a smoother idle, as they help maintain consistent engine compression and prevent oil fouling in the combustion chamber.

Product Parameters:

Polyacrylate (ACM): Our ACM offer superior resistance to mineral oil, oxygen, and ozone. While they may not be the best choice for water applications, their resilience in other environments is unmatched.

Polychloroprene Rubber (CR): Known for its versatility, our Neoprene provide excellent resistance to ozone, aging, and chemicals. They maintain robust mechanical properties across a broad temperature spectrum.

Nitrile-Butadiene (NBR): Our NBR material are designed for environments with gasoline and aromatic solvents. With varying acrylonitrile content, they balance swell resistance and flexibility for optimal performance.

Hydrogenated NBR (HNBR): Engineered for superior air resistance, our HNBR material feature a hydrogenated process that enhances thermal stability and oxidation resistance.

Fluorocarbon (FKM): Our FKM material are the epitome of high-performance, boasting exceptional resistance to high temperatures and a wide range of chemicals, with outstanding permeability and compression set.

Motorcycle Valve Stem Seal

Valve Stem Seal Process Flow Chart: 

steps The process flow Process flow name Machinery and equipment/measuring equipment features Special features symbols note
product product  
1 Rubber material visual / / /
IQC Hardness tester hardness /
Tensile machine Tensile strength                 / /
Tensile machine elongation / /
hydrometer The proportion of / /
Aging test chamber The compression permanent deformation / /
3 Mixing mixer / Material thicknessmm /
4 IQC rheometer TS2 / /
TS50 / /
TS90 / /
Hardness tester hardness /
5 Cutting edge
Cutting machine / Is long /
Material weight /
6 moulding 300 t hot molding machine, automatic monitoring
/ The molding pressure (kgcm2)
/ Molding time
/ Mold temperature
visual appearance / /
Hardness tester hardness /
The projector/caliper size /
7 IPQC visual appearance / /
Hardness tester hardness /
The projector/caliper size /
8 deflashing visual appearance / /
Automatic disassembly machine / speed /
/ time /
9 QC Scissors/knife appearance / /
steps The process flow Process flow name Machinery and equipment/measuring equipment features Special features symbols     note
product process  
10 FQC visual appearance / /
Hardness tester hardness /
The projector/caliper size /
11 cleaning Plastic basket / / / Manual cleaning
/ / /
/ / /
12 Post curing The oven / time
/ The temperature
13 Packing Electronic says Single - / /
Baling press The number of / /
The printer The labe / /
visual The cartons / /
14 OQC visual appearance / /
Hardness tester hardness /
The projector/caliper size /
visual check / /
visual weighing / /
15 Warehousing
transport cart Delivery note / /
Courier / /
Put in storage / /

Motorcycle Valve Stem SealMotorcycle Valve Stem Seal

Motorcycle Valve Stem Seal Applications:

1. Admission and Fumes Valves: Valve stem seals are applied to both the admission and fumes valves in cruiser motors. They are answerable for controlling the progression of motor oil around the valve stems and guaranteeing that main air and fuel (during the admission stroke) or exhaust gases (during the exhaust stroke) enter the burning chamber.

2. Two-Stroke and Four-Cycle Motors: Cruiser valve stem seals are utilized in both two-stroke and four-phase motors. These motors have different ignition processes, however valve stem seals are fundamental in the two kinds to keep up with legitimate oil control and forestall oil spillage.

3. Hustling and Superior Execution Cruisers: Elite execution and dashing bikes frequently put extra expectations on valve stem seals because of sped up and temperatures. Particular execution valve stem seals might be utilized in these applications to deal with the extra burdens and guarantee ideal execution.

4. Cruisers and Professional Bicycles: Valve stem seals are additionally found in cruiser cruisers and professional bicycles, where significant distance dependability is essential. These bikes are intended for expanded rides, and valve stem seals assist with further developing eco-friendliness and lessen oil utilization during these excursions.

5. Soil Bicycles and Rough terrain Cruisers: In rough terrain cruisers and soil bicycles, valve stem seals assume a crucial part in forestalling residue, soil, and flotsam and jetsam from entering the motor during rough terrain riding conditions. These seals assist with keeping up with appropriate oil control and safeguard the motor from toxins that can cause harm.

6. Road Bicycles and Worker Cruisers: Valve stem seals are utilized in road bicycles and suburbanite bikes to guarantee effective motor execution and dependability during day to day driving. These cruisers ordinarily have an extensive variety of riding conditions and require valve stem seals that can endure fluctuating temperatures and burdens.

7. Rare and Exemplary Bikes: Valve stem seals are likewise utilized in one of a kind and exemplary cruisers, safeguarding the credibility and execution of these famous machines. Appropriately working valve stem seals assist with keeping up with the honesty and dependability of these more established motors.



Product Category

Our Company

Companies adhering to the "industry change life " business philosophy with the international working style and localization professional spirit, service to the worldwide customers.

Quick Links

Product Category

Contact Us

Copyright © 2023 Ningbo Boman Mechanical & Technology Co., Ltd. Technology by Leadong. Sitemap.