Technical Specifications; Overview; Features And Options; Specifications - Danfoss K Frame Series Service Manual

Service Manual
K and L Frame Variable Motors, Cartridge Mount

Technical specifications

Overview

Features and options

Mount
Motor type
Displacement
Rotation
Installation position
Porting
Output shafts
Control options
Displacement limiter
Speed sensor
Loop Flushing Valve

Specifications

Parameter
Displacement (maximum)
Weight (cartridge and SAE-B)
Mass moment of inertia of rotating
components
Theoretical torque

Operating parameters

Parameter
System pressure continuous
maximum
Speed limit continuous
(at max. disp)
maximum
Speed limit continuous
(at min. disp)
maximum
Case pressure continuous
maximum

Fluid specifications

8 | © Danfoss | July 2017
Specifications and operating parameters for KC/LC motors are given here for reference.
SAE-B (LV/KV)
Inline, axial piston, positive displacement, two-speed variable motors
3
L: 25, 30, or 35 cm [1.50, 1.83, or 2.14 in
Bidirectional
Discretionary: Housing must always be filled with hydraulic fluid
SAE O-ring boss, axial or twin radial
Splined 13 or 15 tooth 16/32 pitch, 0.875 in. straight
keyed, and 1:8 taper
Single or dual line hydraulic control
Fixed maximum and minimum displacement limiters available
Available on L Frame SAE-B motors, in development* on K frame and cartridge motors
Available
Unit
3 3
cm [in ]
kg [lb]
2
kg•m
2
[slug•ft ]
N•m/bar
[lbf•in/1000psi]
Unit
bar [psi]
-1
min (rpm)
bar [psi]
Ratings and data are based on operation with premium petroleum-based hydraulic fluids containing
oxidation, rust, and foam inhibitors.
Cartridge (LC/KC)
3 3
] K: 38 or 45 cm [2.32 or 2.75 in
SAE O-ring boss, twin radial
Splined 13 or 15 tooth 16/32 pitch
Single line hydraulic control
L25 L30
25 [1.50] 30 [1.83]
15.4 [34]
0.001666 0.001582
[0.001229] [0.001167]
0.40 0.48
[244] [293]
L25 L30
210 [3045] 175 [2540]
415 [6020] 350 [5075]
3400 3500
3950 4150
4400 4450
5000 5150
2 [29]
6 [87]
3
]
L35 K38
35 [2.14] 38 [2.32]
0.001530 0.002326
[0.001128] [0.001716]
0.56 0.60
[347] [366]
L35 K38
140 [2030] 210 [3045]
280 [4060] 415 [6020]
3600 3600
4300 4000
4500 4650
5300 5200
520L0631 | AX00000042en-US0402
K45
45 [2.75]
0.002286
[0.001687]
0.72
[439]
K45
175 [2540]
350 [5075]
3500
3900
4500
5050