FAQ

This depends on the material and size. Please contact us for details. (Performance is lower than that of metal bearings.)

Except for a few exceptions, all bearings from Kashima Bearings Inc. are non-magnetic. We recommend using balls made of glass, ceramic, or plastic in such cases.

Most plastic bearings from Kashima Bearings Inc. are oil-free and do not require lubrication. Additionally, they can be used in oil, grease, water, and other liquids.

Kashima Bearings Inc. can provide bearings made of materials that can withstand almost all chemicals. Please inform us of the specific chemical you intend to use, and we will be happy to advise you on the most suitable bearing material.

The advantage of plastics is that they do not rust. Please specify the conditions under which you intend to use the ball bearings, and we will be happy to advise you on the suitable bearing material.

While it depends on the type of metal, we have some materials that can be processed with metals without suffering damage. We also have materials suitable for soft metals. Please provide us with more details about your specific requirements, and we will be happy to advise you on the most suitable bearing material.

Yes, we have bearings that can be used in gasoline or alcohol. We also have some bearings that are compatible with other organic solvents.

While there are only a few materials suitable for the food industry available for selection, we are able to provide some bearings suitable for this product area.

Yes, we also produce UV-resistant bearings.

We produce some plastic bearings that can be used in saltwater. When using them, care must be taken to ensure that no foreign substances, such as seaweed residues, adhere to them.

The inner ring, outer ring, and balls can be made of ceramic, but the cage is made of plastic.

The smallest size of our plastic bearings is the version with a 3 mm inner diameter, 10 mm outer diameter, and 4 mm thickness.

We offer plastic bearings made of materials that can basically withstand temperatures up to 350°C. Please contact us for more information.

Kashima Bearings Inc. manufactures bearings with maximum dimensions of 150 mm outer diameter and 120 mm inner diameter. It should be noted that the load capacity of plastic bearings does not increase proportionally with size.

This depends on the material and size. For ball bearings, please consider the load capacity to be a few percent of that of metal bearings. For high-load applications, we recommend plain bearings as they offer higher load capacities.

We offer the BL type, which has a double-shielded design (similar to ZZ). Unlike metal bearings, these are not hermetically sealed, so fine dust or particles may enter. We do not offer a completely sealed type. However, please note that the presence of moisture is often a favorable condition for plastic bearings.

Our plastic bearings are also suitable for use in dry environmental conditions.

We will make proposals based on your application and operating conditions. Please contact us.

There is no standard table. If you have specific details, please send us drawings or rough sketches, and we will make a proposal accordingly.

These are not listed in the catalog. The dimensions for outer and inner diameters as well as thickness basically comply with metal versions (JIS standard). Please consult us if you have requests for other special sizes.

We do not have a specific minimum order quantity. We sell from a single piece.

Basically, products are made to order. Currently, the lead time is approximately 3 weeks after receiving the order. For large quantities, please consult us separately.

If you provide us with your operating conditions, we will perform the calculation for you.

Currently, these are not available as standard. If required, please consult us.

We have English and German catalogs for ball bearings. Please request them from the 'Contact Us' page.

For selecting the most suitable materials, we require more details about the rotational speed, loads, temperature, and atmospheric conditions (e.g., dry, humid, specific chemicals to be used, etc.).

After cleaning, they are packed in bags according to the order quantity and shipped. If you require individual packaging, please specify separately. We do not use individual boxes.

Please contact us via the inquiry form on the 'Contact Us' page, email, or fax. If you have already decided on the model number and material, please provide that information. If the material is unknown, we will select the appropriate material based on your conditions and provide a quote.

For plastic products, precision varies by material. Due to the coefficient of thermal expansion and water absorption, a clearance or manufacturing tolerance of at least 30 to 50 µm is required. Depending on the size, 100 to 200 µm may be necessary.

Regarding samples, we consult on a case-by-case basis whether they can be provided free of charge or for a fee.

Yes, we have excellent expertise in manufacturing products tailored to customer requirements. We provide detailed consultation to our customers and can recommend additional assembly parts that may help reduce the number of components. We also accommodate deliveries in small quantities.

There are many differences, but the main ones are: oil-free, no corrosion or deterioration due to rust or chemicals, lightweight, non-magnetic, insulating, etc.

We support customers worldwide. Please feel free to contact us even if an on-site visit is required.

In the unlikely event that the inquiry form does not work correctly, please contact us by email, fax, or telephone.