G Rotary Unions For coolant, water, oil, and air service

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1 Rotary Unions or coolant, water, oil, and air service Precision rotary unions for more effective cooling and lubrication. High speed rotating unions for transferring fluids and air.

2 Contents Rotary Union Overview A eneral Purpose Air and Hydraulic Rotary Unions AI Internal Mounted Rotary Unions R/RA Coolant Rotary Unions for Dry Running /A Coolant Rotary Unions for Dry Running S/SA Coolant Rotary Unions for Dry Running P/PA Coolant Rotary Unions for Dry Running B High Pressure Water and Hydraulic Rotary Unions / HP/HPA Rotary Unions HS/HSA Rotary Unions Bracket Mounted Custom Rotary Unions Multi-Passage Air and Hydraulic Rotary Unions Multi-Purpose Air and Hydraulic Rotary Unions Recommendations Quick Select Chart Type Media Pressure (Max.) Temperature (Max.) Coolant Air Oil BAR PSI C Speed (RPM) A 15 1, , AI 7 1, ,5 B 4 5, ,5 R/RA (1) 8 1, , P/PA (1) 15 2, , /A 8 1, , S/SA 8 1, , HP/HPA 14 2, , HS/HSA 8 1, , / , , 2M/4M/5M 25 3, M , , ,5 Bracket Mounted (1) 8 1, , Recommended Acceptable Not Recommended 1. Consult Kadant Johnson for specific details. 2. or specific application parameters, see catalog page. Higher speed and pressure available on request Do not operate rotary unions at a combination maximum values of pressure, temperature, and speed.

Overview The rotary union is a high performance, high precision rotary union for coolant, water, air, and hydraulic oil

The rotary unions are generally applied to the machine tool industry for: u Transfer lines u un drills u Spindles u Drilling u

mechanical seal design and application expertise, the rotary union line is built to perform under the most demanding conditions.

can provide years of reliable service for coolant, water, air, and hydraulic oil Precision rotary unions designed for smooth

3 Overview The rotary union is a high performance, high precision rotary union for coolant, water, air, and hydraulic oil applications. The rotary unions are generally applied to the machine tool industry for: u Transfer lines u un drills u Spindles u Drilling u Milling u Machine tools u CNC machines u rinding machines u Presses u Clutches u Rotary index tables Based on decades of mechanical seal design and application expertise, the rotary union line is built to perform under the most demanding conditions. A thorough understanding of seal load optimization, seal wear characteristics, and application knowledge means the rotary union can provide years of reliable service for coolant, water, air, and hydraulic oil applications. Precision rotary unions designed for smooth running, high speed coolant, air, and hydraulic oil applications. Measuring and controlling seal design ensures leak-free operation. Rotor concentricity is measured to allow vibration-free operation. aser etched hydrodynamic grooves provide improved seal performance. 3

A M K Rotor with pilot Type A B C D H J K (mm) M Weight (lb) A3253 M1 X 1 RH 1/8 NPT 1.22 2.83.87.43.13.67 2.13.3 A3255 M1 X 1 RH 1/8 NPT 1.22 2.83.87.43.13.67 2.13 11 -.11.12.

4 A M K Rotor with pilot Type A B C D H J K (mm) M Weight (lb) A3253 M1 X 1 RH 1/8 NPT A3255 M1 X 1 RH 1/8 NPT A3254 1/4 (BSP) RH 1/8 NPT A /4 NPT RH 1/4 NPT A6594 5/8-18 UN RH 1/4 NPT A /8-18 UN H 1/4 NPT A6256 1/4 (BSP) RH 1/4 NPT A6257 1/4 (BSP) H 1/4 NPT A /8 NPT RH 3/8 NPT A9251 5/8-18 UN RH 3/8 NPT A /8-18 UN H 3/8 NPT A961 3/8 (BSP) RH 3/8 NPT A /8 (BSP) H 3/8 NPT A9159 M16 X 2 RH 3/8 NPT A /2 NPT RH 1/2 NPT A /4-16 UN RH 1/2 NPT A /4-16 UN H 1/2 NPT A /2 (BSP) RH 1/2 NPT A /2 (BSP) H 1/2 NPT A /4 (BSP) RH 1/2 NPT A /4 (BSP) H 1/2 NPT A M2 X 1.5 RH 1/2 NPT A M2 X 1.5 H 1/2 NPT A M22 X 1.5 RH 1/2 NPT A1236 M22 X 1.5 H 1/2 NPT Consult factory for additional thread type luid Pressure (PSI) Temperature ( ) RPM RPM (with pilot) Air ,5 1,5 Coolant 1, 25 3,5 6, Hydraulic Oil 1,5 25 3,5 6, u Precision ball bearings lubricated for life u Hardened stainless steel rotor u Optimized seal balance ratio for minimal friction u Smooth running, no vibration u Body available in anodized aluminum or brass u Stationary seal face available in carbon graphite, bronze seal face for hydraulic oil above 1, psi 4

AI C B A Type Rotor A + B C Weight (lb) AI32516 M1 X 1 RH 1.22 1.89.94.3 AI32515 1/4 (BSP) RH 1.22 1.89.94.3 AI61215 5/8-18 UN RH 1.54 2.13 1.6 1.1 AI6361 5/8-18 UN H 1.54 2.13 1.6 1.1 AI62372 1/4 (BSP) RH 1.

5 AI C B A Type Rotor A + B C Weight (lb) AI32516 M1 X 1 RH AI /4 (BSP) RH AI /8-18 UN RH AI6361 5/8-18 UN H AI /4 (BSP) RH AI6362 1/4 (BSP) H AI9278 5/8-18 UN RH AI9364 5/8-18 UN H AI9824 3/8 (BSP) RH AI9363 3/8 (BSP) H AI9138 M16 X 2 RH AI1264 3/4-16 UN RH AI /4-16 UN H AI /2 (BSP) RH AI /2 (BSP) H AI /4 (BSP) RH AI /4 (BSP) H Dimension tolerance is +.12, +.16 luid Pressure (PSI) Temperature ( ) RPM Air ,5 Coolant 1, 25 3,5 Hydraulic Oil 1, 25 3,5 u Compact design mounted inside shaft u Hardened stainless steel rotor u Optimized seal balance ratio for minimal friction u Available with non-contacting seal ring with hydrodynamic grooves u Anodized aluminum body 5

6 R/RA Dry running Type A B C* D H M P Q R X* Y Z Weight R M16 X 1.5 H / /8 BSP 3/8 BSP / lb R /8 18 UN H.6555/ /8 BSP 3/8 NPT / lb *C and X in mm for metric threads M P N KY 2 D C B A Q R H Type A B C* D H M N P Q R X* Y Z Weight RA M16 X 1.5 H / /8 NPT 3/8 NPT / lb RA /8 18 UN H.6555/ /8 NPT 3/8 NPT / lb RA M14 X 1.5 H / /8 NPT 3/8 NPT / lb RA M12 X 1.25 H / /8 NPT 3/8 NPT / lb *C and X in mm for metric threads 116 Rotary Union Type R-RA PV Diagram.2 X Y.2 Z Spindle Detail luid Pressure (PSI) Temperature ( ) RPM Coolant 1, , Pressure (psi) PV diagram at estimated joint life of 1, hours. Working conditions with different pressure/speed values are possible, but the joint life is lower Speed (rpm) u Special seal design permits dry running u abyrinth seal and drain holes protect bearings u Optimized seal balance ratio u Silicon carbide seal faces resist wear and thermal shock u Precision ball bearings eliminate vibration u Anodized aluminum body u ull flow area, minimal pressure drop u Stainless steel springs located outside the flow u Stainless steel rotor resists corrosion u No leakage during tool change 6

7 /A Dry running Type A B C* D H M P Q R X* Y Z Weight M16 X 1.5 H / /8 BSP 3/8 BSP / lb /8-18 UN H.6555/ /8 BSP 3/8 NPT / lb M1 X 1. H 1.994/ /8 BSP 3/8 NPT / lb *C and X in mm for metric threads Type A B C* D H M N P Q R X* Y Z Weight A M16 X 1.5 H / /8 BSP 3/8 BSP / lb A /8-18 UN H.6555/ /8 BSP 3/8 NPT / lb A M16 X 1.5 RH / /8 BSP 3/8 BSP / lb *C and X in mm for metric threads Rotary Union Type -A PV Diagram Y Z X.2 luid Pressure (PSI) Temperature ( ) RPM Coolant 1, , Air , Pressure (psi) PV diagram at estimated joint life of 1, hours. Working conditions with different pressure/speed values are possible, but the joint life is lower. Spindle Detail Speed (rpm) u Special seal design permits dry running u Optimized seal balance ratio for minimal friction u Precision angular contact bearings widely spaced to eliminate wobble and vibration u abyrinth seal and drain holes protect bearings u Anodized aluminum body u Reduced coolant misting for improved air quality u ow heat generation in bearings and mechanical seal u No leakage during tool change commutation u ow vibration for precise machining u Also available for rotation with compressed air u Supplied with bearings run-in upon request u Closing ring suitable for proximity sensing drawbar position 7

8 S/SA Dry running Type A B C* D H M P Q R X* Y Z Weight S M16 X 1.5 H / /8 BSP 3/8 BSP / lb S /8-18 UN H.6555/ /8 BSP 3/8 NPT / lb *C and X in mm for metric threads Type A B C* D H M N P Q R X* Y Z Weight SA M16 X 1.5 H / /8 BSP 3/8 BSP / lb SA /8-18 UN H.6555/ /8 BSP 3/8 NPT / lb *C and X in mm for metric threads.2 luid Pressure (PSI) Temperature ( ) RPM X Coolant 1, , Air , Y.2 Z Spindle Detail Pressure (psi) Rotary Union Type S-SA PV Diagram PV diagram at estimated joint life of 1, hours. Working conditions with different pressure/speed values are possible, but the joint life is lower Speed (rpm) u Special seal design permits dry running u Optimized seal balance ratio for minimal friction u High precision angular contact bearings eliminate wobble and vibration u abyrinth seal and drain holes protect bearings u Anodized aluminum body u High speed, dry run applications u Reduced coolant misting for improved air quality u ow heat generation in bearings and mechanical seal u No leakage during tool change commutation u ow vibration for precise machining u Also available for rotation with compressed air u Supplied with bearings run-in upon request u Closing ring suitable for proximity sensing drawbar position 8

P/PA Dry running M KY 2 P D C B A H Q R Type A B C* D H M P Q R X* Y Z Weight P.24 M16 X 1.5 H 17.994/17.983.96 1.22 1.73 1/8 BSP 3/8 BSP.43.2 2.19 1.6 4.67 18.7/17.997.33.67 1.1 lb P.24 5/8 - UN H.

9 P/PA Dry running M KY 2 P D C B A H Q R Type A B C* D H M P Q R X* Y Z Weight P.24 M16 X 1.5 H / /8 BSP 3/8 BSP / lb P.24 5/8 - UN H.6555/ /8 BSP 3/8 NPT / lb *C and X in mm for metric threads M KY 2 P N H D C B A Q R Type A B C* D H M N P Q R X* Y Z Weight PA.24 M16 X 1.5 H / /8 BSP 3/8 BSP / lb PA.24 5/8 - UN H.6555/ /8 BSP 3/8 NPT / lb *C and X in mm for metric threads Rotary Union Type P PA PV Diagram Y Z.2 X.2 luid Pressure (PSI) Temperature ( ) RPM Coolant 2, , Air , Pressure (psi) PV diagram at estimated joint life of 1, hours. Working conditions with different pressure/speed values are possible, but the joint life is lower. Spindle Detail Speed (rpm) u abyrinth seal and drain holes protect bearings u Optimized seal balance ratio u Silicon carbide seal faces resist wear and thermal shock u Angular ball bearing design resists side loading u ow vibration for precise machining u Anodized aluminum body u ull flow area, minimal pressure drop u Multiple stainless steel springs located outside the flow u Stainless steel rotor resists corrosion u Closing ring suitable for proximity sensing drawbar position 9

B K A B C D Type A B C D K Weight (lb) B61835 1/4 NPT RH 1/4 NPT 2.24 4.61.98.59.28.39.98 2. B618351 1/4 NPT H 1/4 NPT 2.24 4.61.98.59.28.39.98 2. B618352 1/4 BSP RH 1/4 BSP 2.24 4.61.98.59.28.39.98 2. B618353 1/4 BSP H 1/4 BSP 2.

10 B K A B C D Type A B C D K Weight (lb) B /4 NPT RH 1/4 NPT B /4 NPT H 1/4 NPT B /4 BSP RH 1/4 BSP B /4 BSP H 1/4 BSP B /8 NPT RH 3/8 NPT B /8 NPT H 3/8 NPT B /8 BSP RH 3/8 BSP B /8 BSP H 3/8 BSP B /2 NPT RH 1/2 NPT B /2 NPT H 1/2 NPT B /2 BSP RH 1/2 BSP B /2 BSP H 1/2 BSP luid Pressure (PSI) Temperature ( ) RPM Water 5, ,5 Hydraulic Oil 5, ,5 Rotary Union Type B PV Diagram Pressure (psi) Speed (rpm) u Stainless steel rotor u abyrinth seal between bearing and mechanical seals for longer lifetime and safety u Rigid bearing installation for safety u Optimized seal balance for minimal friction u Stainless steel and aluminum body u All materials in contact with medium are non-corrosive u Stainless steel springs located outside the flow 1

/5485 M Q J P2 D P1 A H P2 I P1 P2 N O K R A D H I J K M N O P1 P2 Q R 2.72 3.5.9 1.34.2.8.47.16 1.2 1/8 BSP.45 2.48 2.16 1/4 BSP 1/8 BSP 1.36 6.

11 /5485 M Q J P2 D P1 A H P2 I P1 P2 N O K R A D H I J K M N O P1 P2 Q R /8 BSP /4 BSP 1/8 BSP P1 P2 1 Type Maximum RPM Media Maximum Pressure (psi) iltering (micron) Media Maximum Pressure (psi) iltering (micron) Maximum low (gpm) /5485/ 8, /5485/1 8, Coolant Hydraulic Oil 1,16 1 Air Air Coolant 29 6 Coolant Hydraulic Oil 1,16 1 Hydraulic Oil 1, u Two channel rotary union u High speed for specific machine tool applications u Dry running capable (consult factory) u Aluminum body u Stainless steel rotor u langed connection for stable operation and long life u Drain connection between passages for separation of media u Also available for rotation with compressed air 11

HP/HPA Type A* B C* D H M P Q R S T Weight (lb) HP9 7.995/7.986.63 48./47.975 1.77 2.17 1/4 BSP 3/8 BSP 1.89.77 1.47.62.12 4.61.79.67 1.

12 HP/HPA Type A* B C* D H M P Q R S T Weight (lb) HP / / /4 BSP 3/8 BSP *A and C in mm for metric threads M D Q P N C B A H S T R Type A* B C* D H M N P Q R S T Weight (lb) HPA / / /4 BSP 3/8 BSP *A and C in mm for metric threads OCTAONA PROI 232 Rotary Union Type HP-HPA PV Diagram Steel Balls Bearings Ceramic Balls Bearings B 8 g ( -.14 ) Dimensions are in millimeters Type Pressure (PSI) Temperature ( ) RPM HP/HPA 2, , High Speed 2, , luid Pressure (PSI) Temperature ( ) RPM B Pressure (psi) PV diagram at estimated joint life of 1, hours. Working conditions with different pressure/speed values are possible, but the joint life is lower Air , Speed (rpm) u Special seal design permits dry running u abyrinth seal and drain holes protect bearings u Optimized seal balance ratio u High precision angular contact bearings for high speeds u Anodized aluminum body u ull flow area, minimal pressure drop u ong drawbar stroke for maximum flexibility u ow heat generation in bearings and mechanical seal u No leakage during tool change commutation u arge drain holes to evacuate coolant from the rotary union u Supplied with bearings run-in upon request u Stainless steel springs located outside the flow 12

13 HS/HSA P M D Q C B A H S T R Type A* B C* D H M P Q R S T Weight (lb) HS / / /4 BSP 3/8 BSP *A and C in mm for metric threads M D Q P N C B A H S T R Type A* B C* D H M N P Q R S T Weight (lb) HSA / / /4 BSP 3/8 BSP *A and C in mm for metric threads OCTAONA PROI 135 Rotary Union Type HS-HSA PV Diagram Steel Balls Bearings Ceramic Balls Bearings B 8 g ( -.14 ) Dimensions are in millimeters. Type Pressure (PSI) Temperature ( ) RPM HS/HSA 1, , High Speed 1, , luid Pressure (PSI) Temperature ( ) RPM Air , B Pressure (psi) PV diagram at estimated joint life of 1, hours. Working conditions with different pressure/speed values are possible, but the joint life is lower Speed (rpm) u Special seal design permits dry running u abyrinth seal and drain holes protect bearings u Optimized seal balance ratio u High precision angular contact bearings for high speeds u Anodized aluminum body u ull flow area, minimal pressure drop u ong drawbar stroke for maximum flexibility u Seal to protect bearings for air pressure in rotor area u ow heat generation in bearings and mechanical seal u No leakage during tool change commutation u arge drain holes to evacuate coolant from the rotary union u Supplied with bearings run-in upon request 13

Bracket Mounted H B A C D Ch.11 d9.7 C min.28 3 +.1 22 -.1 C + -.1 Ø12.2 Y Ø8 + -.5 Ø14 B HRC Min. 55.2 B 15 +.2 - MAX. STROK Dimensions are in millimeters. Type A B C D H /5327.94.2 2.1 4.63 1.34 3.

14 Bracket Mounted H B A C D Ch.11 d9.7 C min C Ø12.2 Y Ø Ø14 B HRC Min B MAX. STROK Dimensions are in millimeters. Type A B C D H / Rotary Union Type /5327 PV Diagram Type Pressure (PSI) Temperature ( ) RPM /5327 1, , Pressure (psi) Standard faces aser faces Speed (rpm) u Auto-Off seal device permits dry running u Precision bearing for long lifetime u Tungsten carbide seal faces resist wear and thermal shock u Drawbar stroke.59 u Coolant connection in flange for reduced hose load u Anodized aluminum body 14

I B A H D Type without lip-seal Type with lip-seal A B D H I 1C618362 1C618382 5/8-18 H.63 1.74 1/4 NPT.88 1.25 1.38.91 1C618363 1C618383 5/8-18 RH.63 1.74 1/4 NPT.88 1.25 1.38.91 1C618364 1C618384 3/8-24 H.

15 I B A H D Type without lip-seal Type with lip-seal A B D H I 1C C /8-18 H /4 NPT C C /8-18 RH /4 NPT C C /8-24 H /4 NPT C C /8-24 RH /4 NPT C C /2-2 H /4 NPT C C /2-2 RH /4 NPT C C M16 X 1.5 H /4 NPT C C M16 X 1.5 RH /4 NPT C C61839 M1 X 1 H /4 NPT C C M1 X 1 RH /4 NPT C C M12 X 1.25 H /4 NPT C C M12 X 1.25 RH /4 NPT Type Pressure (PSI) Temperature ( ) RPM 1C 1, , Pressure (psi) Rotary Union Type 1C PV Diagram Speed (rpm) u High-pressure, bearingless coolant rotary union u xternal bracket mounted u Stub rotor mounted directly onto spindle end u Compact, precision design for installation flexibility u Tungsten carbide seal faces resist wear and thermal shock u Optional lipseal for added spindle protection 15

16 Custom Unions Custom designed rotary unions are available in both housing-less and housed versions. When the rotary union you require is not shown in the catalog, our team of engineers is ready to design and manufacture a custom rotary union for your specific application. igure 1 igure 2 igure 3 igure 4 igure 5 igure 6 16 Custom-designed precision rotary unions are available with laser-etched hydrodynamic grooves to provide improved seal life.

72 Multi-Passage 2M J K D N A W V U 3 C 3 4M R P H S X J K N D N B N Drain nd View A W V U C 3 3 X B Drain nd View 5M J D K N N N N A W V U 3 C 3 X B Drain nd View Type A B C D H J K N P R S U V W X

75 2.36.71.47.67.47.28.98 3.54.16 4M12368 5.12 1/2 BSP 4.25 7.95.98.55.47.8 3.19 6.65 2.95.91.59.79.59.35 1.14 4.33.16 5M91544 5.12 3/8 BSP 4.29 9.33 1.6.59.35.8 3.7 7.83 2.56.83.47.67.47.35 1.26 4.

17 72 Multi-Passage 2M J K D N A W V U 3 C 3 4M R P H S X J K N D N B N Drain nd View A W V U C 3 3 X B Drain nd View 5M J D K N N N N A W V U 3 C 3 X B Drain nd View Type A B C D H J K N P R S U V W X 2M /8 BSP M /2 BSP M /8 BSP M /2 BSP M /8 BSP Inter-passage leakage may occur, check compatibility of different fluids. luid Pressure (PSI) Temperature ( ) RPM Air Hydraulic Oil , u Multi-passage rotary unions for air and oil u Precision ball bearings are lubricated for life u Proprietary slide seal provides long life and dry-running u Heat-treated (hardened) stainless steel rotor u Drain holes can be connected to a drain line u Designed for multi-station index tables 17

18 Multi-Purpose 2M / 4 3 NPT / 4 NPT 3/ 4 NPT luid Pressure (PSI) Temperature ( ) RPM Air / Hydraulic Oil 3, Inter-passage leakage may occur, check compatibility of different fluids Drain u Two-passage rotary union for air and oil u Precision ball bearings are lubricated for life u Heat-treated (hardened) stainless steel rotor u Drain holes can be connected to a drain line u Anodized aluminum body /57/ luid Pressure (PSI) Temperature ( ) RPM Air ,5 Hydraulic Oil 1, 25 1, /8 NPT 1/4 NPT u High-speed, two-passage rotary union for air, hydraulic oil, and coolant u Unique seal design prevents accidental leakage when both passages are pressurized u Mechanical seal provides long life and positive sealing u High precision ball bearings are lubricated for life u Heat-treated (hardened) stainless steel rotor u Drain holes can be connected to a drain line 18

Recommendations Installation and operation recommendations rotary unions are high-precision components that provide smooth running operation at high speeds.

19 Recommendations Installation and operation recommendations rotary unions are high-precision components that provide smooth running operation at high speeds. Due to the precise manufacturing tolerances, these rotary unions require care during installation and maintenance. Installation instructions are available online at or from your local Kadant Johnson sales office. lexible hose To ensure free movement of the rotary union and elimination of side loading, the proper installation, type, and length of flexible hose should be used. Kadant Johnson recommends SA 1R1 type AT single-braid hose. The minimum length of hose is 12 for a one-piece installation. Hose should be a minimum of 12 long. Yes No No Yes ubrication The seal faces in all rotary unions are lubricated by the media (coolant, hydraulic oil, etc.) passing through the rotary union. The Auto-Off seal device found in select rotary unions permits dry running. All ball bearings are lubricated for life and require no additional lubrication. iltration It is important to follow the filtration requirements recommended by the machinery OM. The rotary unions do not require additional filtration other than what is recommended for the coolant pumping system. uarantee rotary unions are tested prior to shipment and are warranted against manufacturing defects for 12 months. Kadant Johnson s global sales and service network stands behind its products and provides support to more than 15 countries worldwide. 19

Other Rotary Unions Type RX for water, thermal oil, and air ( 3 8 to 6 ) The RX rotary union features a balanced seal and carbon-to-tungsten carbide seal package that makes the RX more robust and

The RX rotary union is supported by two widely-spaced anti-friction bearings, capable of intermittent dry running, and has the balanced seal-loading springs located outside the flow area to minimize

Type SX for steam and thermal oil ( 3 4" to 5") The SX rotary union is designed for steam and thermal oil applications with a stationary supply pipe.

The convex seal ring and optimized seal diameter provide extended seal life and reduced maintenance for the SX rotary union.

20 Other Rotary Unions Type RX for water, thermal oil, and air ( 3 8 to 6 ) The RX rotary union features a balanced seal and carbon-to-tungsten carbide seal package that makes the RX more robust and able to run longer than other ball bearing designs. The RX rotary union is supported by two widely-spaced anti-friction bearings, capable of intermittent dry running, and has the balanced seal-loading springs located outside the flow area to minimize potential for fouling. The RX is rated up to 5 (26 C), 15 psi (1 bar), and 3, RPM. Type SX for steam and thermal oil ( 3 4" to 5") The SX rotary union is designed for steam and thermal oil applications with a stationary supply pipe. Its two internal carbon-graphite bearings permit self-alignment and long operating life even on cylinders that are not concentric. The convex seal ring and optimized seal diameter provide extended seal life and reduced maintenance for the SX rotary union. The SX rotary union line is available in sizes from 3 4" to 5" and can be used in single or dual flow applications. The union is rated up to 65 (343 C), 3 psi (2 bar), and 55 RPM. Type S for steam and thermal oil service (2 to 16 ) The S rotary union features two carbon-graphite bearings to provide internal support for the rotary union and maintain alignment. The S rotary union is available in sizes 2 to 16 and is rated up to 65 (343 C), 3 psig (2 bar), and 2 RPM. Kadant is a global supplier of high-value, critical components and engineered systems used in process industries worldwide. Contact us: Type Over-the-Shaft for water, hydraulic oil, and air service The Over-the-Shaft rotary union is applied to various types of rolls that require cooling through the driven roll journal. The OTS features a design for both high-speed and lower-speed applications and is rated up to 2 (93 C) and 15 psig (1 bar). KADANT JOHNSON INC. 85 Wood Street Three Rivers, MI 4993 USA Tel: mail: info@kadant.com Rotary Unions-38 (US) 2/216 Replaces: -37 (US) 216 Kadant Inc.

G Rotary Unions. For coolant, water, oil and air service. High speed rotating unions for transferring fluids and air.

G Rotary Unions. For coolant, water, oil and air service. High speed rotating unions for transferring fluids and air. G Rotary Unions or coolant, water, oil and air service Precision rotary unions for more effective cooling and lubrication. High speed rotating unions for transferring fluids and air. ontents Type G Rotary