Last Updated： Aggregation Period:Jul 23, 2025～Aug 19, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Jul 23, 2025～Aug 19, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Jul 23, 2025～Aug 19, 2025
This ranking is based on the number of page views on our site.
1～15 item / All 25 items
Due to the long-life 2-ball bearings, it is possible to reduce the frequency of maintenance, achieving a total cost reduction.
Ideal for industrial equipment, FA equipment, OA equipment, and small devices. The bearing structure employs 2 ball bearings, achieving a long lifespan of 70,000 hours (at 40°C). 【Features】 ● Size: 70mm × 70mm ● Thickness: 15mm ● Rated voltage: 12V ● Bearing structure: 2 ball bearings
Due to the long-life 2 ball bearings, it is possible to reduce the frequency of maintenance, achieving a total cost reduction.
Ideal for industrial equipment, FA equipment, OA equipment, and small devices. The bearing structure adopts 2 ball bearings, achieving a long lifespan of 70,000 hours (at 40°C). 【Features】 ● Size: 40mm x 40mm ● Thickness: 10mm ● Rated Voltage: 5V ● Bearing Structure: 2 Ball Bearings
Due to the long-life 2 ball bearings, it is possible to reduce the frequency of maintenance, achieving a total cost reduction.
Ideal for industrial equipment, FA equipment, OA equipment, and small devices. The bearing structure employs 2 ball bearings, achieving a long lifespan of 70,000 hours (at 40°C). 【Features】 ● Size: 50mm × 50mm ● Thickness: 10mm ● Rated voltage: 5V ● Bearing structure: 2 ball bearings
Due to the long-life 2 ball bearings, it is possible to reduce the frequency of maintenance, achieving a total cost reduction.
Ideal for industrial equipment, FA equipment, OA equipment, and small devices. The bearing structure employs two ball bearings, achieving a long lifespan of 70,000 hours (at 40°C). 【Features】 ● Size: 30mm x 30mm ● Thickness: 10mm ● Rated voltage: 12V ● Bearing structure: 2 ball bearings
Due to the long-life 2-ball bearings, it is possible to reduce the frequency of maintenance, achieving a total cost reduction.
Ideal for industrial equipment, FA equipment, OA equipment, and small devices. The bearing structure uses 2 ball bearings, achieving a long lifespan of 70,000 hours (at 40°C). 【Features】 ● Size: 40mm × 40mm ● Thickness: 10mm ● Rated voltage: 12V ● Bearing structure: 2 ball bearings
Due to the long-life 2-ball bearings, it is possible to reduce the frequency of maintenance, achieving a total cost reduction.
Ideal for industrial equipment, FA equipment, OA equipment, and small devices. The bearing structure uses 2 ball bearings, achieving a long lifespan of 70,000 hours (at 40°C). 【Features】 ● Size: 40mm x 40mm ● Thickness: 20mm ● Rated Voltage: 12V ● Bearing Structure: 2 Ball Bearings
Due to the long-life 2-ball bearings, it is possible to reduce the frequency of maintenance, achieving a total cost reduction.
Ideal for industrial equipment, FA equipment, OA equipment, and small devices. The bearing structure uses 2 ball bearings, achieving a long lifespan of 70,000 hours (at 40°C). 【Features】 ● Size: 50mm × 50mm ● Thickness: 10mm ● Rated voltage: 12V ● Bearing structure: 2 ball bearings
You can download the CAD data. It is a ball bearing with a spring, maintaining the characteristics of ISB.
When using the CAD data download, please agree to the following terms and conditions before proceeding with the download. - The data provided is intended solely for the purpose of considering the adoption of our products and for related design purposes. Please do not use it for any other purposes. - The copyright and ownership of this CAD data belong to Iguchi Kiko Co., Ltd. Please refrain from making any unauthorized modifications or alterations to the CAD data. - The shape data has been partially simplified to reduce file size. - Please use the CAD data models strictly for design consideration purposes. - The content of the CAD data may be changed without prior notice due to product improvements or catalog revisions. Please understand that we do not provide notifications regarding changes to the downloaded data. - The CAD data does not guarantee the specifications of our products. We will not be liable for any damages resulting from the use of the CAD data.
![[Free Giveaway] Comprehensive Catalog of Miniature Ball Bearings](https://image.www.ipros.com/public/product/image/0d9/2000115980/IPROS95797847118395641105.png?w=280&h=280)
We offer over several hundred types of miniature ball bearings, ranging from a tiny size with an inner diameter of 1.0mm and an outer diameter of 3.0mm to sizes around an outer diameter of 20mm!
Miniature ball bearings are now essential components in the rotating parts of various equipment. As the downsizing of equipment progresses, there is an increasing demand for smaller, thinner, and quieter designs. NSK Micro Precision Co., Ltd. manufactures a variety of ball bearings tailored to meet these needs. ■ Size Types From ultra-small types with an inner diameter of 1.0mm and an outer diameter of 3.0mm to sizes around 20mm in outer diameter, including special types, there are hundreds of varieties. ■ Catalog Contents The "Miniature Ball Bearing Comprehensive Catalog" includes the most commonly used radial ball bearings composed of an inner ring, outer ring, balls, cage, and seals, such as "single-row deep groove ball bearings," deep groove ball bearings with a flange on one side of the outer ring, "flanged deep groove ball bearings," inch series deep groove ball bearings with a wider inner ring than the outer ring, "wide inner ring deep groove ball bearings," and deep groove ball bearings with a smaller outer diameter to inner diameter ratio than standard, "thin-walled deep groove ball bearings," among many others. ★ For more details, please download the catalog or contact us.
Technical information on high-quality miniature ball bearings that achieve sub-micron high precision is provided.
This document contains various technical information about "miniature ball bearings," which have become essential components in the rotating parts of various devices. It includes various technical details related to miniature ball bearings, such as different conversion methods and material properties. [Contents] ■ Conversions from the International System of Units (SI) ■ N-kgf conversion table ■ Inch-mm conversion table ■ Hardness conversion table ■ Physical and mechanical properties of metallic materials ■ Basic tolerances and IT values ■ Comparison table of part numbers with other manufacturers like ISC/NSK *Please download and view the technical document from the link below.
This document introduces the contents and arrangement of the bearing's preliminary numbers.
This document introduces the "designation number" of bearings. The designation number for shaft bearings is a name that indicates the type of bearing, major dimensions, dimensional and rotational accuracy, internal clearance, and other specifications. It consists of a basic number and auxiliary symbols. The document includes a table showing the arrangement and content of the basic number and auxiliary symbols. 【Content included (partial)】 ■ Content and arrangement of bearing designation numbers *For more details, please refer to the PDF document or feel free to contact us.*
It introduces the accuracy of the main dimensions and rotational accuracy of bearings.
This document introduces the "accuracy of major dimensions and rotational accuracy" of bearings. The tolerances and permissible values for the major dimensions of small diameter ball bearings and miniature ball bearings, as well as rotational accuracy, comply with JIS B 1514 (Accuracy of Rolling Bearings) and ANSI/ABMA Std.12.2 (INSTRUMENT BALL BEARINGS INCH DESIGN). It also includes tables of tolerances and permissible values for the outer rings of ball bearings (metric system), as well as a list of major dimensions and symbols for rotational accuracy. [Included Tables (Partial)] ■ Tolerances and permissible values for the inner rings of ball bearings, as well as tolerances and permissible values for the width of the outer rings. *For more details, please refer to the PDF document or feel free to contact us.
This introduces the "fit" and "gap" of bearings.
This document introduces the "fit and clearance" of bearings. The fit conditions for incorporating bearings into equipment are extremely important for fully realizing the performance of the equipment. Additionally, the size of the internal clearance during bearing operation significantly affects the performance of the bearing, including fatigue life, vibration, noise, and heat generation. Therefore, it is necessary to select an appropriate radial internal clearance considering the fit, bearing load, rotational speed, and bearing temperature during operation. Furthermore, the document includes tables and examples introducing the fit between the inner ring and the shaft, as well as the fit between the outer ring and the housing hole. [Content Overview (Partial)] ■ Fit *For more details, please refer to the PDF document or feel free to contact us.
It introduces the lifespan of bearings, as well as the basic dynamic load rating and fatigue life.
This document explains the "lifetime of bearings." Even when rolling bearings are used correctly for a specific application, after a certain period of time, they may become unusable due to increased noise and vibration, decreased accuracy from wear, degradation of the lubricating grease, and fatigue of the rolling surfaces. The period until they can no longer be used is referred to as the broad definition of bearing lifetime, which includes terms such as acoustic lifetime, wear lifetime, grease lifetime, and rolling fatigue lifetime. Additionally, the basic dynamic rated load of bearings and fatigue lifetime are also explained using calculation formulas. [Content Overview (Partial)] ■ Lifetime of bearings ■ Basic dynamic rated load and fatigue lifetime *For more details, please refer to the PDF document or feel free to contact us.
As bearing technical information, we introduce the permissible rotation speed of bearings.
Each bearing has a limit to its rotational speed. When a bearing is operated, as the rotational speed increases, the temperature rise due to friction heat inside the bearing becomes greater. The limit of rotational speed is an empirical allowable value that allows the bearing to continue operating without causing seizure or excessive heat generation beyond a certain limit. Therefore, the allowable rotational speed for each bearing varies depending on the type and dimensions of the bearing, the type and material of the cage, the bearing load, the lubrication method, the lubricant, and the cooling conditions surrounding the bearing. [Key Points] - Each bearing has a limit to its rotational speed. - The limit of rotational speed is an empirical allowable value that allows the bearing to continue operating without causing seizure or excessive heat generation beyond a certain limit. *For more details, please refer to the PDF document or feel free to contact us.*
