A1

You cannot directly purchase it from us. Please purchase it from a distributor or dealer.

A2

We are not selling our products online.

A3

Please contact our sales representative for store information.

A4

You can purchase it through a distributor or dealer. However, it is not covered by our product warranty as you perform disassembly/assembly by yourself.

A5

We are not selling grease.

A6

Although we can create it in most of cases, we check and reply if it is possible to create it. In order to identify your product, please let us know its "model name", "manufacturing number", and "manufacturing date" shown on the nameplate. If you have the product drawing, please let us know the "drawing number" shown on the bottom right of the product drawing.

A7

We check and reply if it is possible to repair your product. Depending on products, expenses for purchasing new products may be lower than repair expenses.

A8

Wrap the product to prevent foreign objects from entering it, and store it in dry environment at 10℃ to 40℃. (Our recommended storage method)

A9

If it has been stored for less than two years using our recommended method, you can use it as is. If it has been stored for two years or more, please contact our distributor or dealer for maintenance.

A10

Grease is filled in the product before shipment unless you have requested not to do so.

A11

It depends on products. For a ready-made product (listed in the catalog), the grease brand is shown in its instruction manual available on our website. For a customized product, see its product drawing. The brand is shown on the top right of the product drawing.

A12

Use the same grease as the one filled in the product before shipment. Do not use grease mixed with other ones. Doing so may reduce the lubricating effect.

A13

Remove the grease outlet plug and fill the grease through the grease nipple (grease inlet). Continue to fill until new grease comes out from the grease outlet.

A14

Greasing frequency depends on the temperature of fluid to be used. Furthermore, the grease amount varies depending on the size. For a ready-made product (listed in the catalog), see its instruction manual available on our website. For a customized product, please contact our sales representative.

A15

It is a plug used for blocking the grease outlet. Be sure to remove it before greasing.

A16

It depends on products. See the product drawing to check the size.

A17

The product drawing is available in PDF format. As it is not available on our website, please contact our sales representative.

A18

Although we don’t release the CAD data of the product drawing, we can provide the CAD data of the outline drawing (2D data in DXF format).

A19

See the product drawing for dimensions. If they are not shown on the product drawing, please contact our sales representative.

A20

For a ready-made product (listed in the catalog), its instruction manual is available on our website. For a customized product, please contact our sales representative.

A21

It is available. Please request it when ordering.

A22

It is available. When ordering, please request it by attaching the list of parts that need material certificates.

A23

It is available. Please request it when ordering.

A24

A ready-made product (shown on the catalog) complies with the modified RoHS. For a customized product, please contact our sales representative.

A25

Japan.

A26

Early leakage often occurs due to dirt fluid or improper installation method. It may occur due to erroneous choice of the product in rare occasions.

A27

Appearance and air tightness inspections are performed for all products.

A28

SJ is short for Swivel Joint, RJ is short for Rotary Joint, and BJ is short for Ball Joint. It is a code for identifying the product category and shown before the type designation.

A1

In general, a rotary joint is not suitable for non-rotating, intermittent rotating, or low-speed rotating operation. However, we are providing OPM series (products with type names beginning with OPM) as customized products suitable for such operation. Contact our sales representative for more information.

A2

The fluid inlet and outlet are not specified. You can select them according to your equipment.

A3

An installation thread must be such that it is tightened when a roll is operated. Select a left-hand thread for a roll that rotates clockwise when viewed from the rotary joint installation side, and select a right-hand one for a roll that rotates counterclockwise.

A4

Structure is different. AC series is a grease-type that uses ball bearings. NC series is a grease-free type that uses carbon bearings.

A5

It is not impossible to do so. To do so, please select a product from AC, NC, or NX series.

A6

It is available. Please let our sales representative know your demand as it is handled as a customized product.

A7

For this product, please contact our sales representative.

A8

It does not include an internal pipe. Please let our sales representative know the tip shape and dimensions of an internal pipe if you order a product with it.

A9

Please let our sales representative know the tip shape and dimensions of the internal pipe.

A10

It is used for detecting early fluid leakage and known as an inspection hole.

A11

Be sure to install the product so that the inspection hole faces downward. If this hole is directed in other directions, leakage cannot be detected in the early stage.

A12

Do not block the inspection hole. If it is blocked, leakage cannot be detected in the early stage.

A13

It includes a shaft end gasket. Stud bolts, hex. nuts, and spring washers are also included.

A14

It depends on use conditions (fluid, pressure, temperature, and rotation speed). It also depends on product installation conditions.

A15

R is short for RH and indicated on a product previously sold. This idea is also applied to LH and L.

A16

"L" indicates the thread direction of the rotor, and "R" indicates thread direction of the internal pipe. "R-L" indicates opposite meaning.

A17

If transmission torque from the rotor side is lower than starting torque, the rotor cannot be rotated. Starting torque is higher than dynamic torque, and starting torque becomes even higher when wringing occurs.

A18

After a long-time storage or depending on service environment, oil released from the ball bearing grease may seep from the ball bearing gap. Wipe it off with a cloth. Consult with our sales representative if oil seepage has negative impact on use conditions.

A19

We are providing customized products that the grease is filled in the mechanical seal section. Contact our sales representative for more information.

A1

Its use in consecutive rotation condition is not appropriate except that rotation is extremely slow. As an elastic seal is used, product lifetime is reduced. Please select one from the product family of rotary joint.

A2

Please select a product from PK series. For low pressure steam with temperature up to 160℃, a quasi-standard product from A, S, C, or CS series that has a modified main seal and grease can be used.

A3

Either is allowed.

A4

Either port can be used as inlet or outlet. However, please note that they are specified for some customized products.

A5

As starting torque is high, if a hose does not have enough strength, hose is distorted before shaft rotation, resulting in no effect.

A6

Please contact our sales representative for allowable bending moment.

A7

A hole is necessary to place or remove steel balls during production or repair. A ball plug is a part used for blocking this hole.

A8

It does not have compatibility. The ball grooves on the ball plug and body were machined with the ball plug attached to the body. If the ball plug is removed due to repair, etc. be sure to attach it back to the original position in order to ensure shape continuity of the grooves.

A9

Oil released from grease in the bearing section may seep from the gap between the ball plug and body. Wipe it off with a cloth. Consult with our sales representative if oil leakage has negative impact on use conditions.

A10

Depending on its size, starting torque is high and the shaft cannot be rotated manually. Please note that we are carrying out rotation inspection for all products before shipment.

A11

Torque cannot be adjusted.