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Spline Shaft（Accuracy Grade：Precision Grade）
Splines are parts that transmit power through the movement of interlocking grooved rotary shafts. Since splines transmit power by meshing together many tooth surfaces, they have superior load transmission ability and alignment relative to fasteners such as screws, pins, keys or mechanical locks. The main types of splines are square splines (with linear and parallel groove side surfaces), involute splines (with zig-zag tooth shapes in circular arrangements) and ball splines (that generate linear motion from rolling steel balls placed in the grooves). Splines that can transmit large torques are used in a variety of mechanisms such as automotive and high-speed rolling stock transmissions, propeller shafts, transportation equipment and machine tools. There are a wide range of applications, so an extensive lineup of product types and shapes are available.
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High Torque Flange Type Ball Spline Model LBF (Medium Load Type)
THK
Utilizes a flange to fixate the housing using a bolt, which makes assembly easy. Ideal for housings with small widths or where there are concerns of deformation associated with machining key grooves into the housing.
Nut Type End Shape (Left) End Shape (Right) Type Spline Shaft Outer Dia. D(Ø) Torque Material Number of Nuts(pc(s).) Nut Length Nut Overall Length L1(mm) Nut Outer Dia. D1(Ø) Preload Accuracy Grade Flanged Type Standard Standard Solid / Hollow - High Torque - 1 ～ 5 Standard 40 ～ 160 23 ～ 135 Standard / Light Preload / Medium Preload Precision Grade Days to Ship: Số ngày giao hàng: 34 Day(s) or more 
34 Day(s) or more
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You can add up to 6 items per a category to the compare list.
Medium-Torque Type, Flange Type Ball Spline, LF Type
THK
Utilizes a flange to fixate the housing using a bolt, which makes assembly easy. Ideal for housings with small widths or where there are concerns of deformation associated with machining key grooves into the housing.
Nut Type End Shape (Left) End Shape (Right) Type Spline Shaft Outer Dia. D(Ø) Torque Material Number of Nuts(pc(s).) Nut Length Nut Overall Length L1(mm) Nut Outer Dia. D1(Ø) Preload Accuracy Grade Flanged Type Standard Standard Solid / Hollow / Hollow (Thin) - Middle Torque - 1 ～ 5 Standard 25 ～ 125 14 ～ 80 Standard / Light Preload / Medium Preload Precision Grade Days to Ship: Số ngày giao hàng: 51 Day(s) or more
51 Day(s) or more
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You can add up to 6 items per a category to the compare list.
Medium-Torque Type Cylindrical-Shaped Ball Spline LT Type
THK
The most compact type that is used while punching keys when the outer diameter of the spline nut transmits the torque in a straight cylindrical shape.
Nut Type End Shape (Left) End Shape (Right) Type Spline Shaft Outer Dia. D(Ø) Torque Material Number of Nuts(pc(s).) Nut Length Nut Overall Length L1(mm) Nut Outer Dia. D1(Ø) Preload Accuracy Grade Key Provided Type Standard Standard Solid / Hollow / Hollow (Thin) - Middle Torque - 1 ～ 5 Standard 16 ～ 185 10 ～ 150 Standard / Light Preload / Medium Preload Precision Grade Days to Ship: Số ngày giao hàng: 89 Day(s) or more
89 Day(s) or more
| BrandNhãn hiệu |
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| Days to ShipSố ngày giao hàng |
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You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | |
| BrandNhãn hiệu | THK | THK | THK |
| Product SeriesDòng sản phẩm | High Torque Flange Type Ball Spline Model LBF (Medium Load Type) | ||
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| Days to ShipSố ngày giao hàng | 34 Day(s) or more | 51 Day(s) or more | 89 Day(s) or more |
| Nut Type | Flanged Type | Flanged Type | Key Provided Type |
| End Shape (Left) | Standard | Standard | Standard |
| End Shape (Right) | Standard | Standard | Standard |
| Type | Solid / Hollow | Solid / Hollow / Hollow (Thin) | Solid / Hollow / Hollow (Thin) |
| Spline Shaft Outer Dia. D(Ø) | - | - | - |
| Torque | High Torque | Middle Torque | Middle Torque |
| Material | - | - | - |
| Number of Nuts(pc(s).) | 1 ～ 5 | 1 ～ 5 | 1 ～ 5 |
| Nut Length | Standard | Standard | Standard |
| Nut Overall Length L1(mm) | 40 ～ 160 | 25 ～ 125 | 16 ～ 185 |
| Nut Outer Dia. D1(Ø) | 23 ～ 135 | 14 ～ 80 | 10 ～ 150 |
| Preload | Standard / Light Preload / Medium Preload | Standard / Light Preload / Medium Preload | Standard / Light Preload / Medium Preload |
| Accuracy Grade | Precision Grade | Precision Grade | Precision Grade |
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ConfigureTạo
Specification/DimensionsĐặc điểm kỹ thuật / Kích thướcĐặc điểm kỹ thuật / Kích thước
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End Shape (Left)
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Tapped -
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End Shape (Right)
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Stepped -
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Stepped and Threaded
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Type
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- Hollow
- Hollow (Thin)
- Polygonal
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Spline Shaft Outer Dia. D(Ø)
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Torque
- High Torque
- Middle Torque
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Material
- SCM415 Equivalent
- SUJ2
- SUS440C Equivalent
- SUS304
- S45C
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Number of Nuts(pc(s).)
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Nut Length
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Nut Overall Length L1(mm)
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Nut Outer Dia. D1(Ø)
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Preload
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Accuracy Grade
Application example related to this categoryVí dụ ứng dụng liên quan đến danh mục này
Related Categories to Spline ShaftDanh mục liên quan đến Spline Shaft
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- Linear Shafts
- Shaft Supports
- Shaft Collars
- Linear Bushings
- Ball Guides
- Spline Shaft
- Oil Free Bushings, Washers
- Oil Free Plates, Guide Rails
- Linear Guides
- Cable Carriers
- Ball Screw
- Support Units
- Lead Screws, Slide Screws
- Cross Roller
- Slide Packs, V Guides, Linear Rails
- Actuators
- Other Linear Motion Related Components
- Bellows
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FAQ Spline Shaft
- Question: What are spline shafts and their primary function in linear motion?
- Answer: Spline shafts are cylindrical rods with ridges or teeth along their length, known as splines. Their primary function in linear motion is to convert rotational motion into smooth and precise linear movement. These splines engage with complementary components to transmit torque efficiently, ensuring controlled motion without slipping or backlash. Spline shafts are crucial in various machinery applications where accurate linear motion is required, such as moving heavy loads or guiding tools with precision, providing reliable and efficient motion control.
- Question: Can you explain the key characteristics of square splines?
- Answer: Square splines feature square-shaped ridges and slots, offering efficient torque transmission and precise alignment. Their design allows for high torque capacity and compatibility with various mating components. Due to their simplicity of manufacture, they are cost-effective for many applications. Additionally, the even distribution of wear along the mating surfaces enhances durability. Square splines are widely used in industrial and mechanical systems where accurate motion control and reliable torque transmission are essential.
- Question: What role do spline shafts play in automotive transmissions?
- Answer: Spline shafts are essential in automotive transmissions for transferring power from the engine to the wheels. They connect parts like the clutch and gears, ensuring smooth power transmission. By enabling the engine's rotational motion to move the wheels with precision, they allow the vehicle to accelerate, decelerate, and shift gears seamlessly. Essentially, spline shafts ensure that your car moves smoothly and efficiently, contributing to its overall performance and driving experience.
- Question: What factors should be considered when choosing a spline shaft?
- Answer: When selecting a spline shaft, it's important to consider factors like the application's torque, speed, and precision requirements. Choose a spline profile and dimensions that match mating components to ensure efficient power transmission. Material selection is key for strength and corrosion resistance. The surface finish impacts durability, while manufacturing methods and costs should be evaluated. Supplier reliability is also crucial. By carefully considering these factors, you can choose a spline shaft that meets your application's needs effectively, ensuring optimal performance and longevity.
- Question: What materials are commonly used for manufacturing spline shafts?
- Answer: Spline shafts are commonly made from materials like steel, aluminum, brass, bronze, titanium, and plastics. Steel offers strength and durability, while aluminum is lightweight. Brass and bronze provide corrosion resistance. Titanium is strong and corrosion-resistant, ideal for demanding environments. Plastics offer benefits like low friction and electrical insulation. The choice depends on factors such as strength, corrosion resistance, weight, and cost.
- Question: What are the maintenance requirements for spline shafts?
- Answer: Maintaining spline shafts involves regular checks for wear, damage, and corrosion. Keep them lubricated to reduce friction and ensure smooth operation. Clean them regularly to prevent dirt buildup. Properly align mating components to avoid unnecessary stress on the shafts. Promptly replace any worn or damaged shafts to prevent further issues. Protect spline shafts from harsh environments and store them correctly when not in use. Following these steps will help ensure the longevity and efficient performance of spline shafts in machinery and equipment.
- Question: How do nut types of influence spline shaft functionality?
- Answer: The type of nut used can significantly affect spline shaft functionality. Slotted nuts provide anti-rotation, ensuring the nut and shaft move together for enhanced torque transmission. Hex nuts offer stability with six sides but lack anti-rotation features. Lock nuts prevent unintentional loosening, employing mechanisms like nylon inserts or serrations. Flange nuts distribute load over a wider area with a built-in washer-like flange. Self-locking nuts have integrated locking features to prevent loosening due to vibrations or external forces. Each type suits specific applications based on torque requirements, environmental conditions, and space constraints.
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