PCR-2B

Nachi PCR-2B — hydraulic swing motor with planetary gearbox

Nachi PCR-2B is a hydraulic swing motor with an integrated planetary gearbox for mini excavators in the 2.5–3.5 t class. The swash plate design combined with a planetary reduction drive in a single housing allows the unit to be mounted directly beneath the operator's cab without additional mounting components. The gearbox operates on working hydraulic oil — no separate gearbox oil is required. The built-in shockless relief valve ensures smooth acceleration and deceleration of the swing platform. The parking brake is integrated into the motor.

Full model range in the section Nachi PCR series.

Technical specifications PCR-2B

• Type: swing motor with planetary gearbox
• Design: axial piston motor with swash plate and integrated planetary reduction drive
• Displacement: ~344 cm³/rev
• Torque: ~1000 Nm
• Maximum working pressure: ~21.6 MPa

Installed in equipment

• Bobcat

  • 325 — crawler excavator
  • 328 — crawler excavator
  • 331 — crawler excavator
  • E26 — crawler excavator
  • E32 — crawler excavator
• Case

  • CX27 — crawler excavator
  • CX31 — crawler excavator
• Caterpillar

  • 303.5C — crawler excavator
  • 303.5D — crawler excavator
  • 303.5E — crawler excavator
  • E303 — crawler excavator
  • E304 — crawler excavator
  • E304C — crawler excavator
  • E304CR — crawler excavator
  • E305C — crawler excavator
• Hitachi

  • EX22 — crawler excavator
  • EX25 — crawler excavator
  • EX30 — crawler excavator
  • ZX27U — crawler excavator
  • ZX30U — crawler excavator
• Hyundai

  • Mini excavators
• JCB

  • 802.5 — crawler excavator
  • 803 — crawler excavator
  • 803 Plus — crawler excavator
  • 8035 ZTS — crawler excavator
• Kobelco

  • SK25 — crawler excavator
  • SK30 — crawler excavator
  • SK35SR — crawler excavator
• Komatsu

  • PC20MR-2 — crawler excavator
  • PC25MR-1 — crawler excavator
  • PC25MR-2 — crawler excavator
  • PC27MR-1 — crawler excavator
  • PC27MRX-1 — crawler excavator
  • PC30MR-2 — crawler excavator
  • PC35MR-2 — crawler excavator
• Kubota

  • KX71-3 — crawler excavator
  • KX71-3S — crawler excavator
  • KX91-2 — crawler excavator
  • KX91-3 — crawler excavator
  • U25-3 — crawler excavator
  • U30-3 — crawler excavator
  • U35-3 — crawler excavator
  • U35-4 — crawler excavator
• New Holland

  • E27 — crawler excavator
  • E31 — crawler excavator
• Takeuchi

  • TB025 — crawler excavator
  • TB030 — crawler excavator
  • TB125 — crawler excavator
  • TB135 — crawler excavator
  • TB230 — crawler excavator
  • TB235 — crawler excavator
• Volvo

  • EW145B — wheeled excavator
• Yanmar

  • B22 — crawler excavator
  • B25 — crawler excavator
  • B27 — crawler excavator
  • ViO25 — crawler excavator
  • ViO27 — crawler excavator
  • ViO30 — crawler excavator
  • ViO35 — crawler excavator

OEM numbers PCR-2B

• Nachi

  • PCR-2B-10A
  • PCR-2B-10A-P-9327A
  • PCR-2B-10A-FP-8584A
  • PCR-2B-10A-P-9472A
• Caterpillar

  • 266-6396
  • 2666396
  • 265-8752
  • 280-2355
  • 281-3052
• Hyundai

  • 31QB-10130
  • 31QB-10141
  • 31QB-10150
  • 31QB-18250

Spare parts for Nachi PCR-2B

• Cylinder block Rotor
• Ball guide
• Disk Spring
• Friction Plate
• Coupling of drive shaft
• Cylinder block press pin
• Roller Bearing
• Cradle Bearing Set
• Retainer Plate
• Swash plate (cam rocker)
• Piston
• Rotor Spring
• Control Valve Regulator
• Seal kit motor
• Shaft Seal
• Servo Piston
• Drive Shaft motor
• Pressure Override Valve
• Valve plate
• Ball guide washer
• Washer

Repair and service PCR-2B

We perform diagnostics and repair of motor Nachi PCR-2B: checking hydraulic parameters, assessing the condition of the piston group and bench testing after restoration.

Contact us — we will repair motor PCR-2B and select genuine spare parts.