南海精工所 List of Products and Services

Usage examples and improvement examples

• Metal bearings

It is ideal for areas where you want to reduce rotational resistance, such as in free rolls. "Features" 1. It has a lower torque compared to conventional bearings. 2. By applying a lubricating film inside the bearing, it can be used in areas where oil leakage is undesirable. 3. It has a low dust generation specification. 4. The operating temperature is up to 50°C. 5. It is designed for light loads.

• Metal bearings

"Features" 1. Solid grease is retained inside the bearing even in water-prone or humid environments. 2. The solid grease uses resin suitable for NSF H1 certified food machinery grease and FDA standards. 3. The operating temperature range is -20 to 80°C.

• Metal bearings

"Features" 1. Designed for outer wheel rotation. 2. The self-aligning function reduces abnormal loads on the bearings caused by deflection of rollers and other components.

• Metal bearings

In a dust environment, bearings filled with solid grease to the full volume inside the bearing are suitable. *For more details, please refer to the PDF document or feel free to contact us.*

• Metal bearings

In dust environments and water-related environments, bearings filled with solid grease to the maximum volume inside the bearing are suitable. *For more details, please refer to the PDF document or feel free to contact us.*

• Metal bearings

The "Low Torque Specification Lubricated Bearing" is a product suitable for free rolling. It has lower torque compared to general bearings, and by applying a lubricating film inside the bearing, it can be used in areas where oil leakage is undesirable. Additionally, it is designed for light loads, with a usage temperature of up to 50°C. 【Features】 ■ Lower torque compared to general bearings ■ Can be used in areas where oil leakage is undesirable by applying a lubricating film inside the bearing ■ Low dust generation specification ■ Usage temperature up to 50°C ■ Designed for light loads *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

The "Solid Grease Bearing" is a product that is filled with solid grease to the maximum volume inside the bearing, making it difficult for dust to enter and resulting in a long lifespan. It uses NSF H1 certified food machinery grease and resin that meets FDA standards. Even in water-related or humid environments, the solid grease is retained inside the bearing. Additionally, the operating temperature ranges from -20 to 80°C. 【Features】 ■ Suitable for dusty environments ■ Filling the bearing to its maximum volume with solid grease makes it difficult for dust to enter, resulting in a long lifespan ■ Solid grease is retained inside the bearing even in water-related or humid environments ■ Uses NSF H1 certified food machinery grease and resin that meets FDA standards ■ Operating temperature ranges from -20 to 80°C *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

Are you experiencing any of the following symptoms with your water-related bearings? ■ They stop turning quickly ■ Grease is leaking out ■ A brown liquid is coming from inside ■ Frequent replacements For these concerns, we offer bearings filled with water-resistant grease for longer lifespan. Our company can accommodate your requests and usage environments with grease filling in short lead times and small lots starting from one piece. Please feel free to contact us when needed. *For more details, please refer to the PDF document or feel free to reach out to us.

• Metal bearings

At Nankai Seiko, we manufacture "grease-sealed bearings for food machinery." 【Features】 ■ Sealed with NSF H1 certified grease ■ HACCP compliant ■ Short delivery times and small lot sizes starting from one piece We can accommodate all of our production series, including the "SS series" and "6S series." Please feel free to contact us when you need assistance. *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

If you would like a binding catalog, please feel free to contact us. 【Contents】 ■ Bearing selection ■ Product series ■ Customization support ■ Usage examples and improvement cases ■ Bearing damage and countermeasures ■ Technical explanations *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

For static electricity prevention and grounding, as well as for bearings that require conductivity and high temperatures, such as those used in laser printers and copiers, bearings filled with conductive grease are suitable. Our company can accommodate requests for grease filling tailored to your needs and usage environment, with short lead times and small lots starting from one unit. Please feel free to contact us when you need assistance. 【We can meet the following needs】 <Grease> ■ We want to fill grease suitable for food machinery that meets H1 grade. ■ We want to fill grease suitable for use in a vacuum environment. ■ We want to fill grease suitable for use in high or low-temperature environments. ■ We want to fill grease that is resistant to water. ■ We want to fill low-dust grease suitable for use in clean rooms. ■ We want to fill low-torque grease to reduce starting torque. ■ We want to fill grease that we currently have on hand. *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

Bearings using silicon nitride ceramic balls, which have excellent insulation properties, are suitable for areas requiring insulation, such as motors and generators. Our company offers the high corrosion-resistant bearing "4S Series," which enables long service life in various corrosive environments. Additionally, we can accommodate customization with various materials. 【Product Lineup】 ■ SUS630 Stainless Steel Bearings "4S Series" ■ Customization available (various materials) *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

For bearings used in high-load environments, multi-row angular bearings or specially designed bearings for high load capacity are suitable. We offer multi-row angular bearings "SS5200・5200 series" that have load capacity for axial loads in both directions. 【Product Lineup】 ■ Multi-row angular bearings (SUJ2) "SS5200・5200 series" ■ Customization available (special shapes) *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

In environments where bearings are used in high-speed rotation, such as spindles, motors, machine tools, and centrifuges, bearings incorporating low-density ceramic balls (silicon nitride) are more suitable compared to steel balls. Our company offers a variety of materials not only for the inner and outer rings but also for each component that makes up the bearing, enabling the production of optimal bearings through combinations of materials tailored to specific applications. [Features] - A variety of materials are available for each component that makes up the bearing. - Optimal bearings can be produced through combinations of materials according to the application. *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

In environments with strong magnetic fields, non-magnetic bearings made from non-magnetic materials are suitable. Our company offers a range of products, including the completely non-magnetic ceramic bearings from the "2C series" and pure titanium bearings from the "1T series" designed for various special environments. 【Product Lineup】 ■ SUS304 Stainless Steel Bearings "6S Series" ■ Ceramic Bearings "2C Series" ■ Pure Titanium Bearings "1T Series" *For more details, please refer to the PDF materials or feel free to contact us.

• Metal bearings

Bearings used in semiconductor and liquid crystal manufacturing equipment are suitable for clean environments with low dust-emitting grease sealed inside. Our company can accommodate requests for grease sealing tailored to your needs and usage environment, with short lead times and small lots starting from one piece. We can respond to needs such as "I want to seal low dust-emitting grease suitable for clean room use" and "I want to seal grease that is resistant to water." 【We can accommodate the following needs】 <Grease> ■ I want to seal food machinery grease that meets H1 grade. ■ I want to seal grease suitable for use in a vacuum environment. ■ I want to seal grease suitable for use in high or low-temperature environments. ■ I want to seal grease that is resistant to water. ■ I want to seal low dust-emitting grease suitable for clean room use. ■ I want to seal low-torque grease to reduce starting torque. ■ I want to seal grease that I already have. *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

Devices that operate in a vacuum state, such as vacuum deposition devices and sputtering devices, are suitable for using fluorine grease-filled bearings or grease-free bearings, which have minimal oil evaporation. Our company offers a lineup of grease-free bearings, such as the "TC Series," which are ideal for high-temperature and vacuum environments where grease cannot be used. Additionally, we can accommodate requests for grease filling tailored to your needs and usage environment, with short lead times and small lot sizes starting from one unit. [Product Lineup] ■ Grease-free bearings "TC Series" ■ Designated grease *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

Bearings used in refrigeration equipment should be filled with low-temperature grease. Our company can accommodate requests for grease filling tailored to your needs and usage environment, with short delivery times and small lot sizes starting from one piece. Please feel free to contact us when you need assistance. 【We can meet the following needs】 <Grease> ■ I want to fill bearings with food machine grease that complies with H1 grade. ■ I want to fill bearings with grease suitable for use in a vacuum environment. ■ I want to fill bearings with grease suitable for high or low-temperature environments. ■ I want to fill bearings with grease that is water-resistant. ■ I want to fill bearings with low-dust grease suitable for use in clean rooms. ■ I want to fill bearings with low-torque grease to reduce starting torque. ■ I want to fill bearings with grease I already have. *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

For use in high-temperature environments (100-260°C) such as heating furnaces and dryers, fluorine grease sealed bearings and grease-free bearings are suitable. Our company offers "heat-resistant stainless steel bearings / heat-resistant hybrid bearings" and grease-free bearings "TC series" that are ideal for high temperatures and vacuum environments where grease cannot be used. [Product Lineup] ■ Heat-resistant stainless steel bearings / heat-resistant hybrid bearings ■ Grease-free bearings "TC series" ■ Designated grease and gaps *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

In environments that use chemical solutions such as acids and alkalis, such as semiconductor manufacturing equipment and plating equipment, bearings made of high corrosion-resistant materials are suitable. Our company offers a variety of products, including the SUS304 stainless steel bearing "6S series," as well as the SUS630 stainless steel bearing "4S series," which enables extended lifespan in various corrosive environments. 【Product Lineup】 ■ SUS304 Stainless Steel Bearing "6S Series" ■ SUS630 Stainless Steel Bearing "4S Series" ■ Ceramic Bearing "2C Series" ■ Pure Titanium Bearing "1T Series" *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

In environments where water and disinfectant liquid splashes occur, such as in food machinery and cleaning devices, SUS440C stainless steel bearings, which have superior corrosion resistance compared to general bearing steel, are suitable. We offer SUS440C stainless steel bearings that are resistant to rust, corrosion, and high temperatures, including the "6800, 6900, 6000, 6200, and 6300 series" as standard stock. 【SS Series Features】 ■ Usable in high-temperature environments compared to SUJ2 bearing steel ■ Types with retaining rings are also available *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

We can accommodate bearings that have been discontinued by other companies as special specifications. We can provide bearings with special shapes tailored to specific applications, such as outer rings with V grooves, U grooves, wide profiles, and thin walls. We have established a production system for a wide variety of small lots, allowing us to meet diverse user needs. 【Features】 ■ Capable of producing bearings with special shapes tailored to specific applications ■ Established a production system for a wide variety of small lots ■ Usable dimensions - Inner diameter: 4mm to 250mm - Outer diameter: 12mm to 280mm - Width: 4mm to 75mm *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

Bearings with retaining rings can also be used in through holes, eliminating the need for stepped hole processing. We offer SUS440C stainless bearings "SS Series" that can be used in high-temperature environments, as well as thin-walled bearings (SUJ2) "6800・6900 Series" that enable compact design and weight reduction of devices. 【Product Lineup】 ■ SUS440C Stainless Bearings "SS Series" ■ Thin-Walled Bearings (SUJ2) "6800・6900 Series" *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

If you want to use it as a guide, the guide wheel bearing, which integrates the guide roller and bearing, is suitable. We offer the "GW Series" bearing with a W-shaped outer ring. It can be used on rails with an inner V shape or outer V shape, and can be utilized as a guide wheel for various applications. 【GW Series Features】 ■ High precision due to the precisely ground W shape and integrated bearing structure ■ The internal structure of the bearing is a multi-row angular contact type ■ Capable of bearing radial and axial loads ■ Excellent load capacity against moment loads ■ Materials include SUJ2 bearing steel and SUS440C stainless steel *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

In places where contamination due to the evaporation of grease base oil is a problem, such as vacuum devices and clean rooms, grease-free bearings are suitable. Our company offers the grease-free bearing "TC Series," which can be used in environments where grease cannot be used by applying a special coating to the retainer. Additionally, grease-free bearings are also ideal for applications such as free rolls and inspection machines, where it is essential to minimize the starting torque. 【TC Series Features】 ■ Operating temperature up to 300°C (excluding seal types) ■ Smooth rotation achieved with low torque (excluding seal types) ■ Usable in environments where grease cannot be used *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

We also accommodate the filling of grease provided by our customers. We can handle the filling of grease tailored to your requests and usage environment with short lead times and small lots starting from one unit. Additionally, we offer a variety of greases, and if we do not have what you need in stock, we can accommodate your request starting from one unit if you provide the grease. 【Features】 ■ We accommodate the filling of grease provided by customers. ■ Short lead times and small lots starting from one unit. ■ Possible to accommodate starting from one unit. *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

In special environments, the grease used significantly affects the lifespan of bearings. Our company provides support for the selection of bearings suitable for the usage environment and their sealing across the entire series. We can accommodate requests for sealing grease tailored to your needs and usage environment with short lead times and small lots starting from one unit. 【Features】 ■ Support for the selection of bearings suitable for the usage environment and their sealing across the entire series ■ Possible to accommodate short lead times and small lots starting from one unit *For more details, please refer to the PDF materials or feel free to contact us.

• Metal bearings

Our company can accommodate needs for non-JIS standard nominal dimensions and tolerances. We are also capable of producing bearings with special shapes such as V-grooves, U-grooves, wide profiles, and thin walls, depending on the application. The dimensions we can manufacture range from an inner diameter of 4mm to 250mm, an outer diameter of 12mm to 280mm, and a width of 4mm to 75mm. 【Features】 ■ Accommodates needs for non-JIS standard nominal dimensions and tolerances ■ Capable of producing bearings with special shapes according to application ■ Manufactureable dimensions: - Inner diameter: 4mm to 250mm - Outer diameter: 12mm to 280mm - Width: 4mm to 75mm *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

Bearings used in special environments require a combination of bearing materials and lubricants suited to those environments. Our company customizes the combination of bearing materials and lubricants to meet the needs of special environments. We offer various materials not only for the inner and outer rings but also for each component that makes up the bearing, allowing us to manufacture suitable bearings through a combination of materials tailored to specific applications. 【Features】 ■ Compatible with special environments ■ Various materials available for each component of the bearing ■ Suitable bearings can be manufactured through a combination of materials according to application *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

Low-torque bearings are suitable for areas where you want to rotate lightly, such as general motors, inspection equipment, and free rollers. Our company can accommodate requests for grease filling tailored to your needs and usage environment with short lead times and small lots starting from one piece. Additionally, grease-free bearings with special coatings on the retainers achieve low torque. 【TC Series Features】 ■ Operating temperature up to 300°C (excluding seal types) ■ Smooth rotation can be achieved due to low torque (excluding seal types) ■ Usable in environments where grease cannot be used *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

For parts that require bearing replacement, such as rollers and conveyors, bearings with set screws that facilitate easy fastening to the shaft are suitable. Our company offers stainless steel bearings "SSXC Series," which prevent creep between the shaft and inner diameter through secure installation with set screws, as well as flange-type bearing units "SF Series." 【Product Lineup】 ■ Stainless steel bearings with set screws "SSXC Series" ■ Flange-type bearing units "SF Series" *For more details, please refer to the PDF materials or feel free to contact us.

• Metal bearings

For areas exposed to seawater or steam, such as ship equipment and food equipment, stainless steel bearings that are even more corrosion-resistant than SUS440C stainless steel are suitable. Our company offers a range of products, including the corrosion-resistant SUS304 stainless steel bearing "6S Series," as well as the SUS630 stainless steel bearing "4S Series," which enables long service life in various corrosive environments. 【Product Lineup】 ■ SUS304 Stainless Steel Bearing "6S Series" ■ SUS630 Stainless Steel Bearing "4S Series" *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

For semiconductor devices, gold plating devices, and other areas that use chemicals or solvents, bearings made of highly corrosion-resistant materials are suitable. Our company offers a variety of products, including the SUS304 stainless steel bearing "6S Series," as well as the SUS630 stainless steel bearing "4S Series," which enables long life in various corrosive environments. 【Product Lineup】 ■ SUS304 Stainless Steel Bearing "6S Series" ■ SUS630 Stainless Steel Bearing "4S Series" ■ Ceramic Bearing "2C Series" *For more details, please refer to the PDF materials or feel free to contact us.

• Metal bearings

In food machinery such as ovens and mixers, bearings filled with grease suitable for NSF H1 grade are appropriate. We can accommodate your requests and usage environments by filling grease in small lots starting from one unit with a short delivery time. Additionally, if we do not have the grease in stock, we can also accommodate your needs starting from one unit if you provide the grease. 【Responding to such needs】 ■ Grease - I want to fill bearings with food machinery grease that meets H1 grade. - I want to fill bearings with grease suitable for high or low temperature environments. - I would like to fill bearings with my own grease. *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

Self-aligning bearings are suitable for areas where issues arise due to shaft deflection or misalignment, such as in film transport manufacturing equipment and long rollers. Our company offers a range of products including self-aligning stainless steel bearings from the "SH series," high-precision bearing units with stainless steel single-row deep groove ball bearings and stainless steel housings from the "SF series," among others. [Product Lineup] ■ Self-aligning stainless steel bearings "SH series" ■ Self-aligning stainless steel bearings (for outer ring rotation) "SB series" ■ Flanged bearing units "SF series" *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

For areas where rust formation is a problem, such as in washing machines and outdoor equipment, stainless steel bearings with excellent corrosion resistance are suitable. Our company offers a range of products, including the SUS440C stainless steel bearing "SS Series," which is resistant to rust, corrosion, and high temperatures, as well as the "6S Series," which uses SUS304 stainless steel widely known for its corrosion resistance, heat resistance, and non-magnetic properties. 【Product Lineup】 ■ SUS440C Stainless Steel Bearing "SS Series" ■ SUS304 Stainless Steel Bearing "6S Series" ■ SUS630 Stainless Steel Bearing "4S Series" *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

For areas where space-saving is desired, such as cleaning and transport devices and winding machines, stainless steel bearings with set screws that do not require a set color and guide wheel bearings integrated with the housing are suitable. Our company offers a range of products, including the corrosion-resistant stainless steel bearings with set screws from the "SSXC Series" and guide wheel bearings from the "GW Series." Additionally, we can customize bearings with special shapes according to application needs, such as outer diameters with V grooves, U grooves, wide widths, and thin walls. 【Product Lineup】 ■ Stainless steel bearings with set screws "SSXC Series" ■ Guide wheel bearings "GW Series" ■ Multi-row angular bearings (SUJ2) "5800 Series" *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

We also respond to requests such as wanting to integrate bearings with surrounding components. ■Available dimensions Inner diameter: 4mm to 250mm Outer diameter: 12mm to 280mm Width: 4mm to 75mm *The range of available dimensions may change depending on specifications.

• Metal bearings

In addition to the inner and outer ring materials, we can also prepare various materials for each component that makes up the bearing and are capable of manufacturing them. ■ Examples of materials (1) Inner and outer rings - SUJ2 (heat stabilization treatment possible) - SUS440C (heat stabilization treatment possible) - SUS304, SUS316L, SUS630 - Titanium, Hastelloy equivalent materials - Ceramics, Resin (2) Balls - SUJ2, SUS440C, SUS304 - Ceramics, Special coatings (3) Retainers - SPCC, S55C, SUS304 - Special coatings, Polyamide resin - Fluororesin, Solid lubricants (4) Shields - SECC, SUS304 (5) Seals - Nitrile rubber, Acrylic rubber - Fluororubber, Fluororesin

• Metal bearings

【Examples of Grease Application Needs】 - I want to encapsulate food machinery grease that meets H1 grade. - I want to encapsulate low-dust grease suitable for use in clean rooms. - I want to encapsulate grease suitable for use in vacuum environments. - I want to encapsulate low-torque grease to reduce starting torque. - I want to encapsulate grease suitable for use in high and low-temperature environments. - I want to encapsulate grease that is resistant to water. - I want to encapsulate the grease I currently have. 【Examples of Gap Application Needs】 - I want to eliminate gap clogging caused by high-temperature environments. - I want to reduce vibrations during high-speed rotation. - I want to create gaps that are outside of JIS standards.

• Metal bearings

"Features" 1. The operating temperature is up to 250°C (excluding seal types). 2. It is a hybrid type that incorporates ceramic balls into the inner and outer rings made of SUS440 stainless steel. 3. The ceramic balls reduce internal heat generation, extending the lifespan of the grease. 4. The long lifespan reduces running costs.

• Metal bearings

It has load capacity for axial loads in both directions.

• Metal bearings

It has load capacity for axial loads in both directions.

• Metal bearings

• Metal bearings