The Shaft Gasket is a high-performance thin washer designed to provide friction participation and torque transmission between shafts and connecting parts. It is a key component in the spring washer flat / spring washers and flat washers series, widely used in precision hardware where rotation feel, connection strength, and service life are critical. It is engineered to achieve “smooth rotation, strong connection, and long-lasting use,” making it ideal for hinges, shafts, micro-motors, and precise assembly applications.
Outer Diameter (OD): 1.7 – 24 mm
Inner Diameter (ID): 0.82 – 12.05 mm
Thickness: 0.5 – 1.5 mm
Material: 65Mn / SK5 / SK7 (high carbon steel)
Hardness (HRC): 43 – 50
Surface Treatment: Environmental Nickel, Chemical Nickel, Black Oxide, Zinc-Nickel Alloy
Function: Participates in friction of moving parts and generates/transmits torque, stabilizing engagement, improving rotational damping, and enhancing tactile feel.
High-strength material: Made of 65Mn / SK5 / SK7 high carbon steel, providing excellent elasticity and fatigue resistance, categorized as carbon steel washers / high carbon washers.
Wide size coverage: OD 1.7–24 mm, ID 0.82–12.05 mm, thickness 0.5–1.5 mm, suitable for micro to medium shaft applications.
Multiple surface treatments: Environmental nickel, chemical nickel, black oxide, and zinc-nickel alloy for corrosion resistance and aesthetic requirements.
Excellent rotational feel: Precision stamping and heat treatment deliver stable friction torque for smooth operation.
Long service life: HRC 43–50, wear-resistant, and deformation-resistant.
Compatible with washers: Can be used as a spring washer flat or combined with flat washers to provide composite anti-loosening, anti-vibration, and load-distribution functions.
Nearly 2,000 standard components available, offering dozens of professional combination solutions for optimal washer+spring washer assembly.
90 million parts in stock, covering common sizes to reduce delivery risks.
Flexible ordering: no strict minimum order quantity, supporting both small test orders and bulk supply.
Fast delivery: order today, ship next day for standard stock sizes.
Strict quality control: heat treatment, hardness testing, and dimensional tolerance ensure reliability for precision hardware assemblies.
Shaft Gaskets are widely used in scenarios requiring friction participation and torque limiting. Typical applications include:
Hardware & Fasteners (Hinges & Hardware)
Hinge shafts: Provide rotational damping and anti-rotation function, improving opening/closing feel.
Locks and handles: Ensure stable torque transmission in rotating mechanisms, reducing noise and loosening.
Shafts & Bearings
Micro-motors and gearboxes: Participate in shaft-end friction to reduce instantaneous impact and improve transmission stability.
Precision bearing preload/limiters: Control rotational resistance for optimal start/stop performance.
Fastening Assemblies
Combine with flat washers and spring washers to form elastic support and anti-loosening structures for bolts and clamping components.
Used in knobs and adjustment mechanisms to achieve smooth and controllable resistance.
Consumer Electronics & Precision Instruments
Camera shutters, printer drives, medical micro-motion components—any application requiring stable friction and long life.
How to Use
Selection: Choose the appropriate ID for the shaft and match OD/thickness; select surface treatment and hardness according to friction or corrosion requirements.
Assembly: Can be installed directly on the shaft as an inner friction part or combined with flat/spring washers at bolt or shaft ends. Maintain dimensional tolerance ≤0.05 mm for consistent friction.
Maintenance: Dry friction or light lubrication; for highly corrosive or humid environments, choose chemical nickel or zinc-nickel alloy surface treatment.
Effect: Correct selection and assembly improve rotation smoothness, reduce unintended back rotation, extend connection life, and reduce assembly noise.
Hardware manufacturing (hinges, handles, locks)
Precision machinery and transmission equipment (micro-motors, gearboxes, reducers)
Household appliances (fans, control knobs)
Automotive & motorcycle (instruments, control knobs)
Office equipment & consumer electronics (printers, cameras)
Medical devices (micro-drive components)
| Parameter | pecification |
| Outer Diameter (OD) | 1.7 – 24 mm |
| Inner Diameter (ID) | 0.82 – 12.05 mm |
| Thickness | 0.5 – 1.5 mm |
Material | 65Mn/SK5/SK7 |
| Hardness (HRC) | 43 – 50 |
| Surface Treatment | Environmental Nickel, Chemical Nickel, Black Oxide, Zinc-Nickel Alloy |
Function | Participates in the friction of moving parts and generates torque |
Q1: How is the Shaft Gasket different from a regular flat washer?
A: Shaft Gasket is designed to participate in rotational friction and provide torque damping. Its material is heat-treated for higher hardness and elasticity, while ordinary flat washers primarily distribute pressure and prevent damage, without friction torque control.
Q2: Which keywords are relevant for this product?
A: It belongs to high carbon flat washers, high carbon steel washers, high carbon washers, carbon washers, carbon steel washers series, and can also be used with spring washers and flat washers / spring washer flat.
Q3: Can custom sizes or surface treatments be provided?
A: Yes, we support small to large batch customization, including OD/ID/thickness and surface treatments (Environmental Nickel, Chemical Nickel, Black Oxide, Zinc-Nickel Alloy).
Q4: What is the MOQ?
A: No strict minimum order quantity. Stock is sufficient for sample, small-batch, and mass production orders.
Q5: What about delivery and inventory?
A: Standard stock items: order today, ship next day. We have about 90 million components in stock and nearly 2,000 standard parts for fast delivery.
Q6: How is quality ensured?
A: Strict material inspection, heat treatment, hardness testing (HRC 43–50), and dimensional tolerance control, plus sample testing to ensure stable performance and service life.
Q7: Can it be used long-term in high-temperature or humid environments?
A: Chemical nickel or zinc-nickel alloy surface treatments improve corrosion resistance. For extreme conditions, please provide operating environment details for material and surface recommendations.
Samples: Available for assembly testing and verification.
Customization: Based on drawings or samples, with technical support and matching solutions (we have experience with dozens of combination solutions).
Delivery: Standard stock available, supporting fast shipping and long-term supply agreements.
| Parameter | pecification |
| Outer Diameter (OD) | 1.7 – 24 mm |
| Inner Diameter (ID) | 0.82 – 12.05 mm |
| Thickness | 0.5 – 1.5 mm |
Material | 65Mn/SK5/SK7 |
| Hardness (HRC) | 43 – 50 |
| Surface Treatment | Environmental Nickel, Chemical Nickel, Black Oxide, Zinc-Nickel Alloy |
Function | Participates in the friction of moving parts and generates torque |
Make it easy for customers to make shafts and apply them to more fields.
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