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Pneumatic Fittings

Rotary Fittings

NRC straight and NRL elbow rotary fittings carry compressed air through a rotating connection. Their swivel construction accommodates movement between the threaded port and the tube.

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Straight and elbow bodiesRotating connectionTube and threaded connections

Product features

  • Rotary fittings connect pneumatic tubing to moving or rotating actuators.
  • A double-bearing structure supports smooth rotation.
  • FKM rotary seals resist wear, heat and corrosion.
  • The nickel-plated metal body resists corrosion and contamination.

Construction and materials

Rotary fitting cross-section, bearings and seals
Rotary fitting cross-section, bearings and seals
Back ring
POM
Collar
Zinc alloy
Release sleeve
POM
Locking claws
Stainless steel
Tube seal
NBR
O-ring
NBR
Rotary O-ring
FKM
Bearings
Not specified
Tubing shown
Nylon or polyurethane

Technical specifications

Fluid
Air and vacuum
Operating pressure
0–0.9 MPa
Negative pressure
−100 kPa
Proof pressure
1.32 MPa
Operating temperature
0–60 °C
Compatible tubing
Polyurethane

Ordering code

NRC8-02
NRCSeries
NRC straight rotary fitting.
8Tube outside diameter
8 mm tube outside diameter in this example.
02Thread size
PT1/4 thread in the ordering example.

Rotary fitting series

SeriesNRCNRL
FormStraightElbow

Rotary fitting tube sizes

Code4681012
Tube outside diameter (mm)4681012

Rotary fitting thread codes

CodeM5M601020304
Thread sizeM5M6PT1/8PT1/4PT3/8PT1/2

The model tables use leading zeros for tube sizes 4, 6 and 8.

Rotary Fittings • Product specifications

Rotary Fittings: Technical specifications

NRC Straight rotary fittings

Model specifications

Series 01
Series
NRC Straight rotary fittings
Applicable tubing
Polyurethane

A straight rotary joint carries compressed air through a bearing-supported rotating connection to the tube.

Technical specifications

Operating data
  • Fluid: Air and vacuum
  • Operating pressure: 0-0.9 MPa
  • Operating temperature: 0-60 °C
  • Proof pressure: 1.32 MPa
  • Vacuum rating: −100 kPa
  • Applicable tubing: Polyurethane
  • Construction: Double bearings with FKM and NBR seals

NRC - Straight rotary fittings dimensions (mm)

ModelthreadDD1L1L2H
NRC04-M5M5413444.58
NRC04-M6M6413545.58
NRC04-01R1/841374714
NRC06-M5M56134458
NRC06-M6M66135468
NRC06-01R1/8613747.514
NRC06-02R1/4613949.514
NRC06-03R3/86131050.517
NRC08-M5M58154478
NRC08-01R1/8815749.514
NRC08-02R1/481595214
NRC08-03R3/8815105317
NRC08-04R1/2815135622
NRC10-02R1/41018.5958.517
NRC10-03R3/81018.51059.517
NRC10-04R1/21018.51362.522
NRC12-02R1/4122196217
NRC12-03R3/81221106317
NRC12-04R1/21221136622

Technical overview

Rotary Fittings series specifications

Functions, dimensions, operating ranges and connections across the product series.

2 related series
SeriesfunctionTube sizeThread portPressure rangeMaterialTube media
NRC Straight rotary fittingsSwivel FittingPolyurethaneM5, M60-0.9 MPa-Air and vacuum
NRL Elbow rotary fittingsSwivel FittingPolyurethaneM5, M60-0.9 MPa-Air and vacuum

Connection flow tools

Connection and airflow calculations

Tube diameter, air velocity and pressure-loss estimates for pneumatic connections.

Open Valves & flow tools
01Valves & flow

Tube ID Calculator

Calculate tube internal diameter from outside diameter and wall thickness.

Free-air flowFlow unitWorking pressureOpen calculator02Valves & flow

Air Velocity Calculator

Calculate airflow velocity inside the tube.

Free-air flowFlow unitInternal diameterOpen calculator03Valves & flow

Pressure Drop Calculator

Estimate pressure loss along the tubing run.

FlowPipe lengthEquivalent fitting lengthOpen calculator04Unit conversion

Flow Converter

Convert between volumetric flow units.

Flow valueSource flow unitOpen calculator

Product enquiries

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Bepto Pneumatic is the pneumatic product line of Bepto Industrial. Contact us for product specifications, drawings, availability and quotations.

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