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Danfoss Motor H1B

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Technical Information

L and K Frame Variable Motors

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Revision history Table of revisions

Date Changed Rev

February 2020 Changed document number from BC00000330 and increased version 0307

November 2019 Added shaft option H drawing 0206

July 2018 Model code - add minimum displacement angles 0205

April 2018 Model code minimum angle update 0204

November 2016 Minor updates 0203

June 2015 new cartridge endcap dimension drawings 0202

November 2014 add new cartridge dimension drawings CB

January 2014 Danfoss layout CA

July 2013 corrections to the schematics BI

June 2013 add HIC and anticavitation options BH

October 2012 edits to various pages BG

September 2009 L35 Max. pressure 300 bar [4350 psi], and speed ring pulses L = 41, K = 44 BF

April 2008 corrected the schematic drawings BE

January 2008 removed displacement limiter setting F12 - 65.3% BD

April 2007 LV (41 pulses/rev) KV (44 pulses/rev) BC

March 2007 changed 41 pulses/rev to 44 pulses/rev BB

October 2006 Added Loop flushing valve and 5 bolt endcap B

February 2004 First edition A

Technical Information

L and K Frame Variable Motors

2 | © Danfoss | February 2020 BC161386484850en-000307

General Information

Basic Design........................................................................................................................................................................................4

Key Features....................................................................................................................................................................................... 5

System Circuit Diagram..................................................................................................................................................................5

Schematic Diagrams........................................................................................................................................................................6

Technical Specifications

Overview..............................................................................................................................................................................................7

Features and Options......................................................................................................................................................................7

Specifications.....................................................................................................................................................................................7

Operating Parameters.....................................................................................................................................................................7

Fluid Specifications..........................................................................................................................................................................8

Operating Parameters

Fluids.....................................................................................................................................................................................................9

Viscosity............................................................................................................................................................................................... 9

Temperature.......................................................................................................................................................................................9

Charge Pressure/Open Circuit Operation................................................................................................................................9

Case Pressure...................................................................................................................................................................................10

Shift Pressure...................................................................................................................................................................................10

System Pressure..............................................................................................................................................................................10

Input Speed......................................................................................................................................................................................11

System Design Parameters

Installation........................................................................................................................................................................................12

Filtration............................................................................................................................................................................................ 12

Reservoir............................................................................................................................................................................................12

Overpressure Protection............................................................................................................................................................. 12

Loop Flushing..................................................................................................................................................................................12

Charge Flow..................................................................................................................................................................................... 13

Charge Pressure / Open Circuit Operation........................................................................................................................... 13

Redundant Braking System Requirement.............................................................................................................................13

Series Operation.............................................................................................................................................................................13

Shaft Loads.......................................................................................................................................................................................13

Radial load formula..................................................................................................................................................................14

Duty Cycle and Bearing Life....................................................................................................................................................... 14

Hydraulic Equations Helpful for Motor Selection...............................................................................................................14

Name Plate....................................................................................................................................................................................... 15

Product Coding

Model Code......................................................................................................................................................................................17

Features and Options

Speed Sensor...................................................................................................................................................................................20

Shaft Torque.....................................................................................................................................................................................20

Output Shafts.................................................................................................................................................................................. 21

Loop Flushing..................................................................................................................................................................................25

Anti-Cavitation Valve Option.....................................................................................................................................................26

Dust Seal Option.............................................................................................................................................................................27

Displacement Limiters................................................................................................................................................................. 27

Motor Rotation................................................................................................................................................................................28

Controls............................................................................................................................................................................................. 28

Brake Release Port (cartridge motors)....................................................................................................................................28

Installation Drawings

SAE-B Mount (LV/KV).................................................................................................................................................................... 29

Cartridge (LC/KC)............................................................................................................................................................................34