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Hydraulic & Pneumatic Components
CR-08-4S4-30-D-JA-J supplier product photograph 1
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TOKYO KEIKI / Hydraulic Motors

TOKYO KEIKI
CR-08-4S4-30-D-JA-J

TOKYO KEIKI CR-08 internal gear hydraulic motor, 123 cm³/rev, with 4-bolt flange mounting, 7/8-14 UNF SAE O-ring ports and a 1-1/4 in parallel shaft with square key. External drain; observe the 460 N·m shaft limit.

Model: CR-08-4S4-30-D-JA-J

Include quantity, destination, required condition and delivery date. Pricing and availability are confirmed individually.

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What defines this model

Displacement
123 cm³/rev
Mounting
4-bolt flange
Shaft
1-1/4 in parallel shaft with square key
Main ports
7/8-14 UNF main ports with SAE O-ring seals in body
Drain
External drain, Rc1/8 on the main-port side
Distributor
Standard spool distributor
Shaft torque limit
460 N·mApplication and hydraulic braking torque must not exceed the shaft limit even if the family torque table is higher.

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Closest listed configurations in TOKYO KEIKI CR. These are comparison references; interchangeability has not been established.

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Configuration comparison for CR-08-4S4-30-D-JA-J
Selection factorThis modelCR-08-4S4-30-D-JA-JCR-08-4P4-30-D-JA-JCR-09-4S4-30-JACR-06-4P4-30-JA-J
Displacement123 cm³/rev123 cm³/rev153 cm³/rev95 cm³/rev
Mounting4-bolt flange4-bolt flange4-bolt flange4-bolt flange
Shaft1-1/4 in parallel shaft with square key1-1/4 in parallel shaft with square key1-1/4 in parallel shaft with square key1-1/4 in parallel shaft with square key
Main ports7/8-14 UNF main ports with SAE O-ring seals in bodyRc1/2 tapered-thread main ports in body7/8-14 UNF main ports with SAE O-ring seals in bodyRc1/2 tapered-thread main ports in body
DrainExternal drain, Rc1/8 on the main-port sideExternal drain, Rc1/8 on the main-port sideInternal drain; no external drain port designationInternal drain; no external drain port designation
DistributorStandard spool distributorStandard spool distributorStandard spool distributorStandard spool distributor
Shaft torque limit460 N·mApplication and hydraulic braking torque must not exceed the shaft limit even if the family torque table is higher.460 N·mApplication and hydraulic braking torque must not exceed the shaft limit even if the family torque table is higher.460 N·mApplication and hydraulic braking torque must not exceed the shaft limit even if the family torque table is higher.460 N·mApplication and hydraulic braking torque must not exceed the shaft limit even if the family torque table is higher.

How to check the fit

  1. Match the mechanical connections

    Check displacement, flange, shaft diameter and key or spline. Compare the actual coupling and mounting dimensions before choosing a replacement.

  2. Check the hydraulic arrangement and load

    Match main-port threads, drain arrangement and distributor. Check the duty against both the applicable performance curve and the shaft torque limit; a series torque figure may exceed the selected shaft limit.

Product information

Model & Configuration

Manufacturer catalog and model-code reference. Confirm the supplied unit against its nameplate and the applicable manual.

BrandTOKYO KEIKI
Model numberCR-08-4S4-30-D-JA-J
Product typeLow-speed high-torque internal gear hydraulic motor
seriesCR-08
displacement123 cm³/rev
mounting4-bolt flange
Main ports7/8-14 UNF main ports with SAE O-ring seals in body
shaft1-1/4 in parallel shaft with square key
Shaft torque limit460 N·mApplication and hydraulic braking torque must not exceed the shaft limit even if the family torque table is higher.
drainExternal drain, Rc1/8 on the main-port side
distributorStandard spool distributor
rotationViewed from shaft: A inlet gives left rotation; B inlet gives right rotationApplies to the listed code without L.
Design number30
Tachometer connectionNone (T code omitted)

Series Performance Reference

These values describe the catalog series. Permissible operation also depends on the model configuration and the conditions stated below.

Rated pressure21 MPaActual permissible loading is also limited by shaft torque.
Instantaneous maximum pressure28 MPaInstantaneous maximum, not continuous operating rating.
Rated flow60 L/min
Instantaneous maximum flow80 L/minInstantaneous maximum, not continuous rating.
Series rated torque360 N·mNot an exact-unit usable torque rating; apply shaft limit.
Series instantaneous torque480 N·mNot continuous; apply shaft limit.
Series rated speed395 min⁻¹
Maximum back pressure7 MPa
Catalog flange-type mass11.3 kgCatalog flange version mass; actual configuration should be checked.

Selection & Installation

  • Confirm the complete nameplate, condition and configuration before placing an order.
  • Apply both the hydraulic performance limits and the shaft torque limit. Series torque values do not override the allowable shaft torque.
  • Confirm flange dimensions, shaft, ports, rotation and drain arrangement. Instantaneous maximum values are not continuous operating ratings.
  • Do not apply external radial or axial loads directly to the shaft. Consult the manufacturer for belt, chain or gear drives.
Manufacturer documentation

Reference information reviewed September 2026. Check the applicable revision for your equipment.

More in Hydraulic Motors

View category ↗
CR-08-4P4-30-D-JA-J supplier product photograph 1
Image for reference only

CR-08-4P4-30-D-JA-J

Low-speed high-torque internal gear hydraulic motor

Displacement
123 cm³/rev
Mounting
4-bolt flange
Shaft
1-1/4 in parallel shaft with square key
Main ports
Rc1/2 tapered-thread main ports in body
Drain
External drain, Rc1/8 on the main-port side
Distributor
Standard spool distributor
Details & selection
CR-09-4S4-30-JA supplier product photograph 1
Image for reference only

CR-09-4S4-30-JA

Low-speed high-torque internal gear hydraulic motor

Displacement
153 cm³/rev
Mounting
4-bolt flange
Shaft
1-1/4 in parallel shaft with square key
Main ports
7/8-14 UNF main ports with SAE O-ring seals in body
Drain
Internal drain; no external drain port designation
Distributor
Standard spool distributor
Details & selection
CR-06-4P4-30-JA-J supplier product photograph 1
Image for reference only

CR-06-4P4-30-JA-J

Low-speed high-torque internal gear hydraulic motor

Displacement
95 cm³/rev
Mounting
4-bolt flange
Shaft
1-1/4 in parallel shaft with square key
Main ports
Rc1/2 tapered-thread main ports in body
Drain
Internal drain; no external drain port designation
Distributor
Standard spool distributor
Details & selection

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