About product

Hollow roller

Rollers are cylindrical parts made primarily of metal that are arranged in a metal cage and slide against a mating part. Because they are often subjected to high-speed rotation while bearing high loads, they require high hardness, precise outer diameter accuracy, smooth surface roughness, etc. Despite their simple shape, if the dimensions of each part are not met, not only will it have a direct impact on important product functions such as noise reduction and vibration, but there is also the possibility of wear and damage, so a high level of product precision is required.

Ultra-small diameter roller

Rollers are cylindrical parts made primarily of metal that are arranged in a metal cage and slide against a mating part. Because they are often subjected to high-speed rotation while bearing high loads, they require high hardness, precise outer diameter accuracy, smooth surface roughness, etc. Despite their simple shape, if the dimensions of each part are not met, not only will it have a direct impact on important product functions such as noise reduction and vibration, but there is also the possibility of wear and damage, so a high level of product precision is required.

Small diameter roller

Rollers are cylindrical parts made primarily of metal that are arranged in a metal cage and slide against a mating part. Because they are often subjected to high-speed rotation while bearing high loads, they require high hardness, precise outer diameter accuracy, smooth surface roughness, etc. Despite their simple shape, if the dimensions of each part are not met, not only will it have a direct impact on important product functions such as noise reduction and vibration, but there is also the possibility of wear and damage, so a high level of product precision is required.

Large diameter roller

Rollers are cylindrical parts made primarily of metal that are arranged in a metal cage and slide against a mating part. Because they are often subjected to high-speed rotation while bearing high loads, they require high hardness, precise outer diameter accuracy, smooth surface roughness, etc. Despite their simple shape, if the dimensions of each part are not met, not only will it have a direct impact on important product functions such as noise reduction and vibration, but there is also the possibility of wear and damage, so a high level of product precision is required.

Grooved shaft

Grooves are often installed for the purpose of assembling other parts, preventing parts from coming loose, and allowing lubricating oil to flow. When assembling parts to a shaft, the parts may come loose due to the load caused by rotation. However, by machining a groove into the shaft and combining it with a mating part that fits the groove, the parts can be fixed together and prevented from coming loose.

Shaft with anti-rotation

Anti-rotation devices machined into metal shafts are used to prevent the shaft from rotating when combined with a mating part, or to stop it at a specific angle, by creating irregularities or notches on the surface.

Perforated Shaft

Holes are often used to connect parts, prevent rotation, and position parts. Holes can also reduce weight, improve ventilation, and provide soundproofing. Holes are often machined using cutting or electric discharge. Our company mainly uses cutting for hole processing.

Straight Shaft

Shaft parts are rod-shaped components that serve as rotational centers and are commonly used as power transmission shafts or linear motion guides. They are widely utilized across various industries, including automotive, marine, industrial machinery, and home appliances. In precision machinery, even the slightest vibration or dimensional change due to thermal effects is unacceptable, so careful consideration is given to both material selection and design.

Large diameter sliding screw

Our in-house developed processing equipment allows us to process up to φ12. This allows us to make smaller and lighter units. Industries: Medical/Healthcare, Mobility, Robotics, Industrial Machinery, etc.

Small diameter sliding screw

We can produce the world's smallest sliding screws in-house. By reducing the lead screw size to φ0.55 to φ4.0, we can make the unit smaller and lighter. Industries: Medical/Healthcare, Robots, etc.

Other sliding screws

Reduce costs by replacing ball screws. Various shapes expand the possibilities of your development. Left-right sliding screws, hollow sliding screws, spline shaft sliding screws Industries: Medical/healthcare, robots, etc.

Metal Packing

This engine exhaust gasket provides excellent sealing performance even in high-temperature gases of approximately 1,000°C. It can also be used in mechanisms that require high wear resistance, such as turbochargers, in addition to engine surroundings. Toughness can also be added by aging treatment.

Heat resistant steel

We have a track record of mass production of various steel types, including INCONEL and SUH. We provide consistent support starting from material procurement. They can be used for automotive parts and mechanisms that require heat resistance and abrasion resistance. We propose the most suitable method, such as cutting, grinding, and drawing, according to the application and cost range.

ceramic

Ceramics have excellent heat resistance, corrosion resistance, insulation, and abrasion resistance, and are used in a variety of fields, including automobiles, semiconductors, information and communications, industrial machinery, and medicine. They are particularly in demand in environments where they are prone to rust, or in special environments where properties such as insulation and hardness are required, but they are characterized by their high price and poor impact resistance. In addition, due to their hardness, they are generally considered to be difficult to process.

Titanium

Titanium has excellent properties such as strength, lightness, corrosion resistance, and heat resistance, but in recent years, the manufacturing costs have been low, and because tool life during cutting is short, titanium is classified as a difficult-to-cut material. One problem with titanium machining is that its low thermal conductivity means that heat generated during cutting cannot escape and accumulates in the tool and the workpiece, which tends to cause significant tool wear. In this environment, TNK is able to perform high-precision machining by utilizing its extensive experience in machining materials and dedicated equipment. In addition, we are able to deliver stable quality and short delivery times to our customers through integrated production from material procurement to finished products.

Other Information

"Difficult-to-cut materials" is a general term for materials that are difficult to remove. Difficult-to-cut materials include many extremely hard materials such as tungsten, silicon, and ceramics. While they are hard, many of these materials are also weak to impacts and brittle. These hardness and brittleness make it difficult to sharpen the edge during cutting, and they are prone to crumbling due to impacts during processing. At TNK, we can process such difficult-to-cut materials using hard turning and grinding.