MCR Radial Piston Motors - Bosch Global...MCR Radial Piston Motor Overview DC-MO/SRP1 | 10/07/2018 © Bosch Rexroth AG 2018. All rights reserved, also regarding any disposal, exploitation,

DC-MO/SRP1 | 10/07/2018

© Bosch Rexroth AG 2018. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.1

Bosch Rexroth

MCR Radial Piston Motors

MCR Radial Piston Motor Overview

DC-MO/SRP1 | 10/07/2018


Manufacturing Plant Information

Business Unit : Mobile Components (MO)

Product : Radial Piston Motors (ORP)

Location: Glenrothes, Scotland

No. of employees: ~ 420

Production Qty 2017: 118,000pcs

Floor Area: 15000m2


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Customer Overview

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Product Overview


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Standard Product RangeMCR3 MCR5 MCR10 MCR15 MCR20

LD160

225

255

280

HD

325

365

400

LD380

470

520

565

HD620

680

750

820

LD

780

860

940

HD

1120

1250

1340

LD

1130

1250

1500

HD

1780

2150

LD

1750

2100

HD

2500

3000

2

4

6

8

10

12

14

16

18

MCR5

MCR10

MCR15

MCR3

MCR20

LD HD

750

820

920

MCR6

MCR6MCR4

LD HD

325

470

MCR4


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Rotary GroupsLow Displacement (LD)

Cylindrical Piston design

High Displacement (HD)

Stepped Piston design

max ∆P = 450bar max ∆P = 400bar


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Motor Variants

MCR – A MCR – F/W MCR - H MCR - T

Wheel Hydrobase CTL TrackSSL /

Excavator

MCR-W :

Wheel Drive, heavy duty

MCR-F :

Wheel Drives, medium duty

MCR 3, 5, 6*, 10 & 15

Hydrobase without bearings & front case

to fit customer interface

MCR3, 5, 10, 15 & 20

Track Drive for CTL

MCR5, 6 & 10

Double Sprocket,

Splined or Pinion

Shaft

MCR 3,5, 10 & 15

RE 15198 / 15200 RE 15199 RE 15221RE 15195

MCR – D/E

Industrial

Applications

MCR-D :

Flange mounting

MCR-E :

Face mounting

MCR 3, 5 & 10

RE 15196

MCR - R

Drive Assist

HTA Hydraulic Drive Assist

Series 41

MCR10

RE 15223

MCR - S

SSL

Double sprocket chain drive for SSL (up to 55 kW)

MCR4 (325 –470cc)

RE Pending

*MCR6F/W is 2 speed only


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Motor Components

Brake

Rear Case Assembly

Rotary Group

Front Case Assembly

Modular Design


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Motor ComponentsShaft

Flange

Front Bearing Rear Bearing

Rotary Group

Distributor

MCR F-TypeParking

Brake

Mounting Flange

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MCR Applications


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Variants by application groupConstruction Road rollers

Compaction equipment

Pavers/Finishers

Concrete Mixer

Mini dumpers

Mini & Midi Excavator

Compact Track Loaders

Skid Steer Loaders

Material HandlingMining transporters

Drilling Rigs

Fork Lift Trucks 1.5t – 6.0t

Side loaders

Piggy-back trucks

Aerial Work Platforms

Agriculture

& ForestryCoffee & Citric Harvesters

Forestry Processing Heads

Vineyard Machine

Sprayer

Potato Harvester

Harvesting Heads

Commercial

VehiclesAirport vehicles

Sweepers

Municipal Multi purpose

Turf care

Heavy duty on-road vehicles

MCR 5

MCR 10

MCR 15

MCR 20

MCR 3MCR-A

MCR-F

MCR-H

MCR-T

MCR-X

MCR-W

MCR-W

MCR-FMCR-A MCR-R


DC-MO/SRP1 | 10/07/2018


Radial piston motors for frame integrated drives: MCR-A Size 160cc to 2150cc

Differential pressure up to 450 bar

Torque output up to 13687 Nm

Speed up to 875 rpm

Front case mount

* List of displacements is not exhaustive. Other displacements are available within this range.

Displacement Vg max cmᶾ * 160 400 565 820 1340 2150

Torque ᵀMax Nm 1146 2546 4047 5220 8531 13687

Maximum Speed ᴺMax rpm 875 350 385 265 125 125

Maximum Δp Δp max bar 450 400 450 400 400 400

Weight m kg 28 28 50 50 70 95


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Radial piston motors for wheel drives: MCR-F Size 160cc to 2150cc



Speed up to 875 rpm

Rear case mount


Torque ᵀMax Nm 1146 2546 4047 5220 8531 13687



Weight m kg 28 28 50 50 70 95



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Radial piston motors for heavy duty wheel drives: MCR-W Size 160cc to 1340cc



Speed up to 875 rpm

High radial forces permitted on drive shaft


Torque ᵀMax Nm 1146 2546 3947 5220 7130 8531



Weight (1L/2W) m kg 28/30 28/30 46/53 46/53 65 65



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MCR-W enhanced loading capabilityRadial Piston Motor range in frame sizes 3, 5 & 10:

• 50 percent higher radial load capacity compared to

standard radial piston motors

• Compact and robust construction with mechanical duo-

cone face seals and steel retaining ring for HD cylinder

blocks as standard

• High overall efficiencies with smooth running at very low

speeds

• Available with standard range of MCR options (2 speed,

sensor, flushing, brake)

• Commonly used on forestry harvesting heads, fork lift

trucks and municipal multi purpose vehicles

Technical data

Series: 33

Sizes: 160 cc to 1340 cc

Differential pressure: up to 450 bar

Torque output: up to 8531 Nm

Speed: up to 875 rpm


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Radial piston motors for track drives: MCR-T

Size 380cc to 1340cc



Speed up to 250 rpm

Compact robust construction


Torque ᵀMax Nm 2450 3640 5930 7220 8060 8531



Weight m kg 62.8 62.8 65.9 93.6 93.6 93.6



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MCR-T advantageNew Radial Piston Motor range in frame sizes 5, 6 & 10:

Compact drive solution for track and wheel applications

Starting efficiency improvement of 10% compared with

conventional design

Installation length is 20% shorter due to integrated

holding brake

Optimised shaft position allows use of simplified sprocket

design

Higher radial loads can be accommodated due to the

optimised load distribution

MCR6T option with 9 pistons offers 2/3 secondary

displacement ratio, which is optimal for many market

requirements

Technical data

Series: 33

Sizes: 380 cc to 1340 cc





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MCR-T features

Internal brake reduces

overall length by 20%

compared to standard

braked MCR

Larger bearings than

standard MCR motors

Both bearings immersed in

clean & flushed fluid

improving bearing life

Shaft design places

mounting flange between

bearing centres optimising

load distribution

2-Speed spool located

in distributor reduces

external dimensions

Enhanced rotary group

design results in 10%

starting efficiency

improvement


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Radial piston motors for chain drives: MCR-SNew Radial Piston Motor range in frame size MCR4:

Improved and tailored functionality with regards to the

requirements of a SSL

Reduced length and optimized interface

Enhanced efficiency with reduced pressure drop

compared to standard range

New range of displacement (MCR4) to cover small and

mid range SSL (<55KW) up to 470cc

Single and two speed (2 speed ratio of 66%)

Integrated parking brake (≥2200Nm)

SOP planned Q1, 2019

Technical data

Series: 33

Sizes: 325cc to 470cc





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MCR-S length comparison with MCR-A

MCR3-A 2-s MCR3-A 1-s MCR4-S 2-s* MCR5-A 2-sMCR5-A 1-s

*showing the MCR5 sprocket S106

155m

m

MCR4-S 1-s*


DC-MO/SRP1 | 10/07/2018


Product Development: MCR4FNew Radial Piston Motor range in frame size MCR4F:

New range of displacement (MCR4) to cover 325 up to

470cc

Reduced length and optimized interface. Overall length

220.5mm (single speed) and 257.5mm (two speed).

Calculated weight of two speed variant 28kg and single

speed variant is 26kg

Enhanced efficiency with reduced pressure drop

compared to standard range

Single and two speed (2 speed ratio of 66%)

Integrated parking brake option (≥2200Nm)

SOP planned Q2, 2019


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Optional features overviewMotor Type Parking Brake

(multi – disc)

Dynamic

Brake

(drum)

Bi-directional

two speed

Integrated

flushing valve

Speed

sensor

MCR-A • - • • •

MCR–F/W • • • • •

MCR-D/E • - • • •

MCR-H • - • • •

MCR-R - - -Standard

Feature-

MCR-SStandard

Feature- • • •

MCR-TStandard

Feature- • • •

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MCR Product Update


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Efficiency Improvements


DC-MO/SRP1 | 10/07/2018


Starting Efficiency Improvements

Polished Rollers Optimised Cam Profile (HD)

Enhanced cylinder bore finish


DC-MO/SRP1 | 10/07/2018


Analysis of test results indicated a consistent difference

in torque ripple between high and low displacement

motor sharing the same cam (Typically 2% for low

displacement and 5% for high displacement)

Investigation has revealed that the MCR cam designs

are optimised for low displacement rollers and when

using the larger roller diameter of high displacement

rotary group, the torque ripple increases

Work is ongoing to optimise a separate cam for high and

low displacement motors with an expected motor

efficiency increase of 5% for high displacements

Starting Efficiency Improvements: Optimised Cam


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Starting Efficiency Improvements


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Integrated speed sensor

Hall-effect sensors with direction and frequency detection

MCR3 target disc available with 96 teeth

MCR5 target disc available with 100 teeth

Available with 250mm and 1500mm cable length options


DC-MO/SRP1 | 10/07/2018


Duty cycle / condition monitoring

DSA1 - Speed Sensor

PR4 - A Port Pressure

TSF - Case Temperature

VS - Contamination Switch

PR4 - Case Pressure

PR4 - B Port Pressure

MCR motors with integrated sensors support the electronification of the

hydrostatic drive

Real time duty cycle data can be recorded using a range of optional

sensors

Enhanced machine uptime and increased productivity

Real time system health status

Data collection utilized as part of predictive maintenance program

DC-MO/SRP1 | 10/07/2018


Motor sources of

further information


DC-MO/SRP1 | 10/07/2018


Motor DatasheetsRE15195 – A type – Spline shaft for integrated drives

RE15196 – D & E types – Keyed shaft for industrial applications

RE15197 – C type – Compact motor

RE15198 – F type – Wheel drives

RE15199 – H type – Hydro base

RE15200 – W type – Heavy duty wheel drives

RE15221 – T type – Track Drives

RE15223 – R type – Drive assist

Information DatasheetsRE15225-01 – Flushing options

RE15225-02 – Freewheeling options

RE15223-03 – 2-Speed soft shifting

RE15223-04 – HET (High Efficiency Traction)

Sources of information


DC-MO/SRP1 | 10/07/2018


Documents

MCR Radial Piston Motors - Bosch Global...MCR Radial Piston Motor Overview DC-MO/SRP1 | 10/07/2018 © Bosch Rexroth AG 2018. All rights reserved, also regarding any disposal, exploitation,