誠和商会 Product Lineup

Introducing the Nord-Lock washers from Nord-Lock Japan, handled by Seiwa Shokai Co., Ltd. 【Contents】 ■ Dimension table for Nord-Lock washers (steel materials) 【About the product】 ■ Product description Nord-Lock washers have provided the best anti-loosening performance and reliability across various industries worldwide. They physically prevent loosening even in environments exposed to severe vibrations and uneven loads, achieving reduced work time and maintenance costs. ■ Product features - Effectively maintains axial force even under severe vibrations and fluctuating loads. - Simply tighten by passing through the bolt shaft to complete the task, without adding extra processes. - Does not depend on the skills or experience of the operator, ensuring the same effect regardless of who performs the work. *For more details, please refer to the PDF document or feel free to contact us.

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This product supports the widest operating temperature range and is resistant to a variety of chemical media. ■ Available Products - O-rings - D-rings - Square rings - Environmental press gaskets - Rubber-metal bonded parts ■ Standards Supported - SAE AS568 O-ring sizes - JIS B 2401 O-ring sizes - Standard millimeter O-ring sizes *For more details about the products, please check the PDF or feel free to contact us.

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Introduction to Ochi Ai's "Retaining Ring" Usage ⇒ Shaft Retaining Ring Manufacturer ⇒ Ochi Ai Material ⇒ Iron, Stainless Steel Size ⇒ 6 to 300 *Please check the attached PDF for details. We have stock available. We sell based on the required quantity rather than in lots, so please feel free to inquire.

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Introduction of "Retaining Rings" by Ochiai Co., Ltd. Usage ⇒ For holes Manufacturer ⇒ Ochiai Co., Ltd. Material ⇒ Iron, Stainless Steel Size ⇒ 6 to 300 *Please check the attached PDF for details. We accommodate stock requests. We sell based on the required quantity rather than in lots, so please feel free to contact us.

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We provide an "Oil Seal Failure Analysis Chart" that allows for the early detection of causes of oil seal leaks and failures. Requesting an investigation from manufacturers or distributors can often take time, but by using this document, it is possible to facilitate the early identification of trouble causes. We maintain a constant stock of TTO brand oil seals and can accommodate small lot deliveries. It is also possible to order types that are not currently in stock, and we will consider maintaining them as regular inventory. 【Features】 ■ Enables simple cause investigation without needing to request from manufacturers or distributors ■ Reduces costs and time associated with investigations ■ Allows for early understanding of causes of failures or malfunctions, preventing damage or breakage *You can view it immediately by clicking the download button. Please feel free to contact us with any inquiries. ★ We are also offering an "Oil Seal Manufacturer Model Comparison Chart" that is helpful for switching from the current manufacturer.

• Sealing
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We have published a code description table for oil seals issued by TTO Corporation. Please use it for replacements or new applications. 【Contents】 Code description of oil seals 【Target Series】 - S Series → Single lip with spring design (standard type) - T Series → Double lip with spring design - V Series → Single lip without spring design - K Series → Double lip without spring design And more *For more details, please refer to the PDF document or feel free to contact us.

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• Sealing

Introducing the "O-Ring" from GMORS, handled by Seiwa Shokai Co., Ltd. We are equipped with molds for sizes that meet Japanese Industrial Standards and automotive industry standards. Custom orders for inch sizes and non-standard sizes are also possible. Please use this information to assist in selecting products. 【Contents (Excerpt)】 ■ O-RING Dimension Table ■ Applicable Materials - JIS Symbol: NBR70-1 (Former JIS Symbol: Type A) → GMOUS Symbol: 1A - JIS Symbol: NBR90 (Former JIS Symbol: Type B) → GMOUS Symbol: 1B - JIS Symbol: NBR70-2 (Former JIS Symbol: Type 2) → GMOUS Symbol: 2A - JIS Symbol: VMQ70 (Former JIS Symbol: Type C) → GMOUS Symbol: 4C - JIS Symbol: FKM70 (Former JIS Symbol: Type D) → GMOUS Symbol: 4D *For more details, please refer to the PDF document or feel free to contact us.

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• Rubber

A cross-reference table of oil seal manufacturers issued by TTO Corporation is provided. Please use it when replacing model numbers. 【Contents】 Cross-reference table of oil seal manufacturers. 【Target Manufacturers】 - TTO - NOK - Musashi - KOYO - ARS - NDK - TOYO - JASO - JIS standards - Old JIS standards *For more details, please refer to the PDF document. If you have any inquiries or need estimates, please feel free to contact us.

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• Sealing

This catalog includes a dimensional table of the characteristics of the 'TTO Oil Seals' manufactured by TTO, handled by Seiwa Shokai. Please use it for product selection. [Contents] ■ Dimensional table of oil seals ■ Sizes 　→ Inner diameter Φ6 to Φ300 ■ Characteristics 　・ Single lip × outer metal (SB type) 　・ Single lip × outer rubber (SC type) 　・ Double lip × outer metal (TB type) 　・ Double lip × outer rubber (TC type) *For more details, please refer to the PDF document or feel free to contact us.

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• Sealing

This product is a super-precision, quiet ball bearing with the same structure as general miniature bearings. It uses stainless steel that is resistant to rust. It meets the international standard "AFBMA ABEC-5 (JIS P5 grade)" for precision, making it suitable for high-precision and miniaturization needs in IT equipment and medical devices. 【Features】 ■ Same structure as general miniature bearings ■ Meets the international standard "AFBMA ABEC-5 (JIS P5 grade)" for precision ■ Uses rust-resistant stainless steel ■ Suitable for high-precision and miniaturization needs in IT equipment and medical devices *For more details, please refer to the PDF document or feel free to contact us.

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• shaft

This product is a resin-wrapped bearing that uses high-load capacity JIS standard 69 series bearings. It is made using insert molding, with the width of the resin being wider than that of the bearing, which also increases the pull-out strength. It uses polyacetal resin, and the outer diameter surface is finished by cutting, resulting in a smooth surface with good runout accuracy. We also offer a creep-free resin-wrapped bearing with an inner ring and a creep prevention ring in the same size. 【Features】 ■ The standard outer diameter shape is flat, but it can also accommodate V-grooves and U-grooves. ■ Uses high-load capacity JIS standard 69 series bearings. ■ The width of the resin is wider than that of the bearing, increasing pull-out strength. ■ The outer diameter surface is finished by cutting, resulting in a smooth surface with good runout accuracy. *For more details, please refer to the PDF document or feel free to contact us.

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• Plastic bearings

"CASSTOP" is a miniature bearing that does not rust even at pH3. It is made from martensitic stainless steel TBN-6H, created through the adjustment of appropriate components (4 chemical components and trace elements), achieving remarkable corrosion resistance that surpasses SUS440C. Even in environments exposed to acidic and alkaline chemical solutions, saltwater, and rainwater, it provides high reliability and long-lasting operation for various equipment. [Features] ■ Achieves remarkable corrosion resistance that surpasses SUS440C ■ Realizes hardness: HRC59 through unique heat treatment technology ■ Exhibits load-bearing performance equal to or greater than SUS440C by optimizing the internal specifications of the bearing ■ Provides high reliability and long-lasting operation for various equipment *For more details, please refer to the PDF materials or feel free to contact us.

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• Metal bearings

We would like to introduce our small transport roller, the "Guide Follower." By incorporating high-precision miniature ball bearings manufactured by NSK Micro Precision, we achieve a reduction in friction torque. By assembling the bearings under strictly managed preload conditions, there is no play in the roller. 【Features】 ■ Equipped with high-precision miniature ball bearings ■ Achieves reduction in friction torque ■ Bearings are assembled under strictly managed preload conditions ■ No play in the roller ■ Suitable for small transport devices *For more details, please refer to the PDF document or feel free to contact us.

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• roller

"CROXPORT" is a support unit for miniature ball screw supports with a shaft diameter of 3 to 8 mm. It achieves a 60% weight reduction compared to standard market products (compared to MSU-6C), enabling downsizing and lightweighting of equipment, as well as improved responsiveness. By incorporating NSK Micro Precision's miniature thrust angular ball bearings "CROXIE," which are strictly managed for preload, it realizes excellent axial rigidity. [Features] - Enables downsizing of equipment - Achieves excellent axial rigidity - Compared to standard market products, the shaft center height is the same dimension, while the axial load performance is equal to or higher across all models - Available in block type and flange type *For more details, please refer to the PDF document or feel free to contact us.

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"FULRiDE" is a roller-type linear motion product that uses the miniature thrust angular ball bearing "CROXY" manufactured by NSK Micro Precision Co., Ltd. The smooth rotation of "CROXY" achieves excellent quietness and low friction. Additionally, it has a simple structure, making it easy to handle. 【Features】 ■ Roller-type linear motion product ■ High load capacity using miniature thrust angular bearings ■ Compatible with belt-type actuators ■ Low noise due to roller type *For more details, please refer to the PDF document or feel free to contact us.

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The "Traction Drive" is a compact and lightweight reduction gear equipped with miniature ball bearings. It achieves low energy loss and maintains low noise and low vibration even at high rotational speeds. It is suitable for small robots, drones, industrial machinery, medical devices, and home appliances. 【Features】 ■ Input shaft diameters ranging from φ2 to φ8 ■ Smooth rotation with ball bearings ■ Low noise and low vibration ■ Minimal rotational variation and backlash ■ Reduction ratio of 10 (single-stage reduction) *For more details, please refer to the PDF document or feel free to contact us.

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• Gearbox

This product is a "urethane-coated bearing" where rubber is directly bonded to the outer diameter of the bearing through a curing process. After the curing process, the outer diameter is polished to achieve high precision, low vibration, and low noise. We offer a wide range of standard sizes, and we can also accommodate special sizes and material changes. 【Features】 ■ Rubber is directly bonded to the outer diameter of the bearing through curing ■ High precision, low vibration, and low noise are achieved by polishing the outer diameter after curing ■ A wide variety of standard sizes are available ■ We can also accommodate special sizes and material changes *For more details, please refer to the PDF document or feel free to contact us.

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The "i-SLIDE" is a linear motion product that uses high-precision miniature ball bearings. With a pre-load design that eliminates play between the slider and the rail, it is suitable for light-load sliding parts. The rotation of the bearings enables smooth and quiet operation. It is designed for easy installation on various devices, and three types of rail widths are available. 【Features】 - Uses six high-precision miniature ball bearings - Eliminates play between the slider and the rail with a pre-load design - Suitable for light-load sliding parts - Achieves smooth and quiet operation through the rotation of the bearings - Designed for easy installation on various devices - Available in three rail widths *For more details, please refer to the PDF document or feel free to contact us.

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"CROXY" is an angular bearing that has enhanced axial rigidity by approximately three times compared to conventional deep groove ball bearings (manufactured by our company). It features high-performance grease that requires no maintenance, sealed with shields on both sides, and allows for the selection of anti-fretting grease (EA7) and cleaning grease (LG2). It is particularly suitable for vertical axis use and contributes to the miniaturization of equipment. 【Features】 ■ Angularized version of the JIS standard 69 series ■ Achieves approximately three times higher rigidity (compared to our products) than deep groove ball bearings ■ Easy installation due to provision with pre-load adjusted combinations ■ Standard precision grade of P5 ■ Contributes to the size reduction of ball screw support sections and the entire equipment *For more details, please refer to the PDF document or feel free to contact us.

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• shaft

This catalog introduces the "Planma Block" from FSQ, handled by Seiwa Shokai Co., Ltd. The FSQ Planma Block is a standard product in Japan with immediate stock availability. We also manufacture ductile cast iron FCD450, cast steel SC450, and stainless cast materials. 【Target (excerpt)】 ■SN505–532 ■SN605–632 ■SN205–232 ■SN305–332 ■SNZ205–SNZ232 *For more details, please refer to the PDF document or feel free to contact us.

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• Metal bearings

This catalog introduces the "O-Rings" from GMORS, handled by Seiwa Shokai Co., Ltd. We are equipped with molds for sizes that meet Japanese Industrial Standards and automotive industry standards. Orders for inch sizes and non-standard sizes are also possible. Please use this information to assist in selecting products. 【Contents (excerpt)】 ■ About GMORS (Company Overview, History, GMORS Materials) ■ GMORS Product Information ■ GMORS Sales Achievements ■ Material Table: JIS K 6301 standard values for standard O-ring materials / Measured values for GMORS O-ring materials ■ Basic O-ring Materials *For more details, please refer to the PDF document or feel free to contact us.

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• Rubber

This catalog introduces a variety of 'TTO Oil Seals' manufactured by TTO Corporation, handled by Seiwa Shokai. It includes information on the structure of oil seals, types of TTO oil seals, assembly guides, and I.D. leakage analysis charts. Please use this for selecting products. [Contents (excerpt)] ■ Structure of oil seals ■ Types of TTO oil seals ■ Selection guide for TTO oil seals ■ Assembly guide ■ I.D. leakage analysis chart *For more details, please refer to the PDF document or feel free to contact us.

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• Sealing