Pearl Rotar y Joint

Rotary JointSXO Series
CATALOGPearl Joint ー Pearl Rotary Joint ー

SXO Series
Features
Lightweight, compact, and easy to handle.
Can be used in a high-pressure and high-rotation speed range.
Depending on the application, you can select standard seal or high-grade seal. High-grade seal can be used under a high-load condition.

Table of Contents
Features........................................................................................................................ P1
Service Conditions........................................................................................... P2
Structures and Materials................................................................................... P2
Dimensions..................................................................................................... P4
90°Style....................................................................................................... P4Straight Style................................................................................................ P5
Compact Style.............................................................................................. P5
Masses........................................................................................................... P6
Flow Rate........................................................................................................ P6
Dynamic Torque............................................................................................... P7
Accessories..................................................................................................... P7
Thread Connection – Dimensions on the Roll Side.............................................. P8
Model Names and Types.................................................................................. P9
Precautions on Selection................................................................................ P11
Maintenance.................................................................................................. P12Product Order................................................................................................ P12
Product Warranty........................................................................................... P13

The contents are subject to change without notice.

1

SXO Series

Pearl Joint ー Pearl Rotary Joint ーService Conditions
Series

Fluid

Style

Max.
Pressure(MPa)

Rotation Speed(min-1)

Temperature
(℃)

6.9

10,000100

10.3

15,000

100

90°

SXO

Straight

Cutting Oil / Water / Oil

Compact

Structures and Materials
A mechanical seal is available in the following two combinations:carbon and tool steel (standard seal) or carbide and ceramics (high-grade seal).

90°
Grease Nipple (Grease Inlet)
Retaining Ring

Materials of Main Components(Standard Seal)

CasingSeal Ring

Ball Bearing

WasherRetaining Ring

SpringRotor

O-ringO-ringSpring Pin
Inspection Hole

Rotor

Tool Steel

CasingAluminum Alloy

Seal Ring

CarbonO-ringNBR

The rotor is finished withelectroless plating, and alumite
treatment (anodizing) for thecasing.

Grease Outlet
Materials of Main Components(Standard Seal)

Grease Nipple (Grease Inlet)
Retaining Ring

CasingSeal Ring

Ball Bearing

WasherRetaining Ring

SpringRotor

O-ringO-ringInspection HoleMaterialPlugStrait

Spring Pin

Part Name

Plug
Grease Outlet
2Part Name

MaterialRotor

Tool Steel

CasingAluminum Alloy

Seal Ring

CarbonO-ringNBR

The rotor is finished withelectroless plating, and alumite
treatment (anodizing) for thecasing.
Part configuration of the straightstyle is the same as that of the90° style. Only the flow passage
shape is different. (The 90° styleflow passage is L-shape, andthe straight style flow passage
is liner shape.)

SXO Series

Pearl Joint ー Pearl Rotary Joint ーCompact

Grease Nipple (Grease Inlet)

Retaining Ring

CasingSeal Ring

Ball BearingSpring

Retaining Ring

Back-up Ring

Rotor

O-ringHeadSpring Pin
Fixing Flange
Inspection HoleO-ring
PlugGrease OutletNote) Component materials are indicated on product drawings.
Contact our sales representative for requests for product drawings.

Seal Configuration and Materials (90°/Straight)

Seal Configuration and Materials (Compact)

3

Materials of Main Components(Standard Seal)
Part Name

Material

Rotor

Carbon Steel(Seal Face : Carbon)

CasingAluminum Alloy

Head

Aluminum Alloy

Seal Ring

Tool SteelO-ring

NBR

The rotor is finished withelectroless plating, and alumite
treatment (anodizing) for thecasing and head.

SXO Series

Pearl Joint ー Pearl Rotary Joint ー90°
Style(mm)

TypeStandard
Seal

High-gradeSeal

A

B

DL

L1

L2

L3m

SXO-090

SXO-090-1

M16×1.5

NPT3/8

46103

73

26

11

5

SXO-091

SXO-091-1

M16×1.5

Rc1/4

46103

73

26

11

SXO-091-2

SXO-091-3

M16×1.5

Rc3/8

46103

73

26

SXO-092

SXO-092-1

5/8-18UNF

NPT3/84610073.3

23

SXO-098

SXO-098-1

5/8-18UNF

NPT3/8464nd

F

16+0.025+0.007819

516+0.025+0.007

819

115

16+0.025+0.007

819

10.3

2.4

15.9-0.028-0.040819

106.4 73.3 29.4 14.3

4.8

16.6+0.050+0.037

6.5

19

SXO Series

Pearl Joint ー Pearl Rotary Joint ーStraight
Style(mm)TypeStandard
Seal

High-grade
Seal

A

B

C

DE

L

L2L3m

SXO-180

SXO-180-1

M16×1.5

NPT1/4

26

46

22112

26

115

SXO-180-2 SXO-180-3

M16×1.5

NPT3/8

31

4627

112

26

11

SXO-181-1

M16×1.5

Rc1/4

26

46

22

112

26

SXO-181-2 SXO-181-3

M16×1.5

Rc3/8314627112

SXO-182

SXO-182-1 5/8-18UNF NPT1/426

46

22

SXO-188

SXO-188-1 5/8-18UNF NPT1/4

264622

SXO-181nd

F

16+0.025+0.007819

5

16+0.025+0.007819

11

5

16+0.025+0.007819

2611516+0.025+0.007

819

109

23

10.3

2.4

15.9-0.028-0.040

819

115.4

29.4

14.3

4.8

16.6+0.050+0.037

6.5

19

Compact
Style(mm)

TypeA

Standard
Seal

High-grade
Seal

SXO-200

SXO-200-1 M16×1.5

B

DEL

L2L3m

NPT3/843

229025115516nd1d2

F+0.025+0.007

4.7

6.4

22

SXO Series

Pearl Joint ー Pearl Rotary Joint ーMasses■ Masses of SXO Series
Seal(kg)

Style90°

Straight

Compact

Standard

0.39

0.34

0.28

High-grade

0.41

0.36

0.28

Flow Rate

The maximum flow velocity in the product is about 3 m/s when the fluid is water.
The following table shows guidelines for the maximum flow rates calculated based on the above flow velocity.

■ Water Flow Rate (Simplex) = A×3×3600/10000
Style90°/Straight
Compact

Seal

Flow Passage Area (cm 2)A（Note1）

Water Flow Rate(m3/h)

Standard

0.283

0.305

High-grade

0.503

0.543

Standard

0.174

0.187

High-grade

0.174

0.187

Note 1) A = Minimum flow passage area6

SXO Series

Pearl Joint ー Pearl Rotary Joint ー

Dynamic TorqueSXO Series

Dynamic torqueSXO Series（Straight / 90°Style）

Dynamic torque(N･m)Dynamic torque（Compact Style）

Dynamic torque
(N･m)

0.35

0.6
Standard

0.5Standard

0.3
0.25

0.4

High-grade

0.2
0.3

High-grade

0.15

0.2

0.1

0.1
000.051234560072468Pressure (MPa)10
Pressure (MPa)Note 1) Dynamic torque varies depending on product storage conditions, storage period, or fluid types.
2) Starting torque is larger than dynamic torque. Although starting torque is even larger when wringing occurs,
it does not indicate any fault.
3) Data are typical values measured based on in-house test standards. They are not guaranteed values.

Accessories
Every product includes an O-ring (NBR). Its type number is AS#014 Hs90.

7

SXO Series

Pearl Joint ー Pearl Rotary Joint ー

Thread Connection - Dimensions on the Roll Side (Reference Values)■ Rotor Dimensions
nｍThread (Rotor)

16+0.025+0.007

5

Metric thread

15.9-0.028-0.0402.4

16.6+0.050+0.037

4.8

Thread (Rotor)
Metric thread■ Dimensions on the Roll Side(mm)Unified thread

n'm'

Z

16+0.037+0.027

8.5

17

15.9

-0.015-0.025

6

14

16.6

+0.063+0.053

8.3

20

Unified thread8(mm)SXO Series

Pearl Joint ー Pearl Rotary Joint ーModel Names and Types
1. Standard Seal

Model NameThread
DirectionType

ＳＸＯ ー 18Style09９０°

18Straight

20

Compact

１－２

RH

Dimensions for Installation / Connecting Port Size
CodeThread(Rotor)

０Ｍ１６×１．
５

φ１６＋０．
０２５＋０．
００７

ＮＰＴ３／８

１Ｍ１６×１．
５

φ１６＋０．
０２５＋０．
００７

Ｒｃ１／４

φ１６＋０．
０２５＋０．
００７

Ｒｃ３／８
ＮＰＴ３／８
ＮＰＴ３／８１-２

Ｍ１６×１．
５

Spigot Diameter(Rotor)

２

５／８－１８ＵＮＦ

φ１５．９－０．
０２８
－０．
０４０

８

５／８－１８ＵＮＦ

φ１６．６＋０．
０５０＋０．
０３７

Thread(Casing)

Dimensions for Installation / Connecting Port Size
Code00-2

Thread(Rotor)
Ｍ１６×１．
５
Ｍ１６×１．
５

Spigot Diameter(Rotor)Thread(Casing)

φ１６＋０．
０２５＋０．
００７

ＮＰＴ１／４

φ１６＋０．
０２５＋０．
００７

ＮＰＴ３／８
Ｒｃ１／４

1Ｍ１６×１．
５

φ１６＋０．
０２５＋０．
００７

1-2

Ｍ１６×１．
５

φ１６＋０．
０２５＋０．
００７

Ｒｃ３／８

φ１５．９

－０．
０２８－０．
０４０

ＮＰＴ１／４

φ１６．６＋０．
０５０＋０．
０３７

ＮＰＴ１／４28

５／８－１８ＵＮＦ
５／８－１８ＵＮＦ

Dimensions for Installation / Connecting Port Size
CodeThread(Rotor)

０Ｍ１６×１．５

Spigot Diameter(Rotor)
φ１６

If you have any questions, contact our sales representative.

9＋０．
０２５＋０．
００７

Thread(Casing)
ＮＰＴ３／８Thread Directionof Rotor

RH Right-hand thread
LH Left-hand thread

SXO Series

Pearl Joint ー Pearl Rotary Joint ー

2. High-grade Seal

Model Name

ThreadDirectionType

ＳＸＯ ー 18
Style
09

９０°

18

Straight

20

Compact

１－３

RH

Dimensions for Installation / Connecting Port Size
CodeThread(Rotor)Spigot Diameter(Rotor)Thread(Casing)

０-１

Ｍ１６×１．
５

φ１６＋０．
０２５＋０．
００７

１-１

Ｍ１６×１．
５

φ１６＋０．
０２５＋０．
００７

Ｒｃ１／４

φ１６＋０．
０２５＋０．
００７

Ｒｃ３／８
ＮＰＴ３／８
ＮＰＴ３／８１-3

Ｍ１６×１．
５２-１

５／８－１８ＵＮＦ

φ１５．９

－０．
０２８
－０．
０４０８-１

５／８－１８ＵＮＦ

φ１６．６＋０．
０５０＋０．
０３７

ＮＰＴ３／８Dimensions for Installation / Connecting Port Size
CodeThread(Rotor)

０-１

Ｍ１６×１．
５

φ１６＋０．
０２５＋０．
００７

ＮＰＴ１／４

0-3

Ｍ１６×１．
５

φ１６＋０．
０２５＋０．
００７

ＮＰＴ３／８

φ１６＋０．
０２５＋０．
００７

Ｒｃ１／４

φ１６＋０．
０２５＋０．
００７

Ｒｃ３／８
ＮＰＴ１／４
ＮＰＴ１／４１-１
１-3

Ｍ１６×１．
５
Ｍ１６×１．
５

Spigot Diameter(Rotor)

２-１

５／８－１８ＵＮＦ

φ１５．９－０．
０２８－０．
０４０８-１

５／８－１８ＵＮＦ

φ１６．６＋０．
０５０＋０．
０３７

Thread(Casing)

Dimensions for Installation / Connecting Port Size
CodeThread(Rotor)０-１

Ｍ１６×１．５

Spigot Diameter(Rotor)
φ１６

If you have any questions, contact our sales representative.

10＋０．
０２５＋０．
００７

Thread(Casing)
ＮＰＴ３／８Thread Directionof Rotor

RH Right-hand thread
LH Left-hand thread

SXO Series

Pearl Joint ー Pearl Rotary Joint ーPrecautions on Selection

1.

Select a product whose operating conditions are within the service conditions (listed in the table on page 2).

2.

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

3.

If the fluid contains wear particles such as shavings, or if you need a longer product lifetime, select a product 		
equipped with high-grade seal.

4.

Operation under conditions where both pressure and rotation speed are close to the max. values or long-time dry
operation (operation without fluid flow) reduces product lifetime.

5.

After a long-time storage or depending on service environment, oil released from the grease may seep from theball bearing. However, it does not indicate any fault.

6.

The product cannot be used for liquid containing solid particles (slurry) or pulverulent body.

7.

The product cannot be used for fluid that causes corrosion on it.

8.

The product is not designed according to the general design rules for safety and hygiene of food processing 		machinery (JIS B 9650). Consult with us when considering the use of the product in food-related facilities.

9.

Depending on the fluid used, the product may subject to restrictions due to national laws or local regulations.
We can produce customized products according to your requests.
If you have any questions or wish to purchase customized products, contact our sales representative.

11

SXO Series

Pearl Joint ー Pearl Rotary Joint ー

Maintenance1) Greasing
SXO series requires the periodic greasing (refilling) of ball bearings.

Greasing Frequency (Guideline)
Fuid Temperature（℃）

Greasing
Frequencythe right.

0～60

Every six months＊Use the brand of grease filled in the product before shipment.

60～100Every three months

Perform greasing with reference to the frequency (guideline) shown to＊Daphne Eponex SR2 (Idemitsu Kosan) is filled as a standard specification.

2) Replacement of consumables
You can use the product for an extended period of time by replacing consumables.
Contact us for replacement. We carry it out according to our repair program.
Depending on the products, expenses for purchasing new products may be lower than repair expenses.
Contact us for more information.

Product Order
Please provide the following information.

1) When ordering our product you are currently using① Model name (indicated on the product's nameplate)2) When newly ordering our products① Model name (see page 14.)
② Related information		 ・ The name of equipment to which our product is installed		 ・ The name of the fluid used		 ・ Fluid pressure and temperature, and roll rotation speed		 ・ Roll rotation direction viewed from the product installation side		 ・ Roll connection method		 ・ Service environment		 ・ Requests, etc.		 If you have any questions, contact our sales representative.

12Nameplate

SXO Series

Pearl Joint ー Pearl Rotary Joint ーProduct Warranty

If a malfunction occurs during the warranty period, contact us or the distributor and send the product to us. Be
sure to carefully pack the product for protection before sending it. After receiving the product, we will confirm themalfunction. If the malfunction was clearly caused by the materials of product components or the manufacturingmethod, we will repair the product in question or replace it with a new one free of charge.

Product Warranty Provision
1. Warranty Period< New products >One (1) year and six (6) months after shipment (from the manufacturing date) or one (1) year after installation,
whichever comes first.
< Repaired products >Six (6) months after shipment (from the manufacturing date).

2. We charge a fee for repairs in any of the following cases.

  ① Failure after the warranty period has expired② Failure caused by use of the product deviating from the service conditions③ Failure caused by misuse (improper storage, installation, pipe laying, operation or maintenance, etc.)④ Failure caused by fluid contaminants or foreign objects in the fluid⑤ Failure caused by relocation, transport, or falling of the product after delivery⑥ Failure caused by disassembly, repair, or modification done by personnel other than our service personnel⑦ Failure of the product attributed to using materials or according to standards specified by the customer⑧ Failure of the product attributed to using materials provided by the customer⑨ Failure caused due to unavoidable acts of nature such as fires or other natural disasters

3. Scope of Responsibility
Our responsibility shall be limited to repairs, replacements, or transport expenses covered by this productwarranty provision. Expenses or damages caused by said failures above shall not be covered.

4. Applicable Regions
This product warranty provision shall be applicable to products installed in Japan.
Contact our sales representative if you install and use our products outside Japan.

5. Another Agreement
If another product warranty agreement is made separately with us and clearly states that said agreement
shall have priority over this product warranty provision, this provision shall not be applicable.

6. This product warranty provision shall not restrict the customer's legal rights.

13     No.：SN20007-2
Issued on : Aug.31 2023

URL https://www.sgk-p.co.jp
Export Department Phone : +81-3-3598-1400 Fax. : +81-3-3598-2700
E-mail : sgk-tk@sgk-p.co.jp
Headquarters

7-24, Nishi-Kobari, Ina-Machi, Saitama, 362-0811 Japan
Phone : +81-48-728-9460 Fax. : +81-48-728-9461

Tokyo Sales Office

2-64-11, Akabane, Kita-ku, Tokyo, 115-0045 Japan
Phone : +81-3-3598-1400 Fax. : +81-3-3598-2700

Osaka Sales Office

2-9-7, Toyosaki, Kita-ku, Osaka, 531-0072 Japan
Phone : +81-6-6371-8341 Fax. +81-6-6371-6283

Nagoya Sales Office 41-1, Higashi-Ozone-cho, Higashi-ku, Nagoya, 461-0022 Japan
Phone : +81-52-938-8825 Fax. : +81-52-938-6423