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BM4 is a large spool valve ,high pressure motor, with ralial ball-bearings design, and can bear greater load.
Characteristic features：
The motor can be used in high pressure and high torque.
Double taper roller bearings permit high radial loads.
Credible design for shaft seal , which can bear high pressure.
Main Specification
| Displacement （ml/r） | 195 | 245 | 310 | 395 | 490 | 625 | 800 | |
| Flow (LPM) | cont. | 75 | 80 | 80 | 80 | 80 | 80 | 80 |
| int. | 100 | 100 | 100 | 100 | 100 | 100 | 100 | |
| Speed （RPM) | cont. | 390 | 320 | 250 | 200 | 156 | 120 | 100 |
| int. | 487 | 390 | 300 | 240 | 200 | 150 | 120 | |
| Pressure (MPa) | cont. | 14 | 14 | 14 | 14 | 14 | 12.5 | 10 |
| int. | 17.5 | 15 | 15 | 15 | 15 | 13 | 12 | |
| Torque (N.m) | cont. | 400 | 435 | 554 | 697 | 870 | 998 | 1023 |
| int. | 510 | 502 | 663 | 798 | 1056 | 1178 | 1379 | |
BM4 Code number and Order information：
BM4 1 2 3 4 5 6 7 8
1. Figuration :A-line port ,B-S-port
2. Displacemet (ml/r): A-195,B-245.C-310,D-395,E-490,F-625,G-800
3. Flange&Pilot (mm) :
A-square flange 145X145, 4-￠13 distributing 115X115,pilot￠125X7
B-square flange 120X120, 4- ￠13 distributing circle ￠127, pilot￠100X7
C-rhombus flange ,4- ￠13.5 distributing circle ￠106.4 ,pilot￠82.5X6
4. Shaft&key (mm):
A-cylinder shaft:￠40X61, parallel key:12X8X50, link thread :M12
B-cylinder shaft:￠32X45, parallel key:10X8X35, link thread :M10
C-cylinder shaft:￠32X55, parallel key:10X7X47, link thread :M10
D-rectangle spline shaft:￠42X61,8-42X36X7 ，link thread :M12
E-rectangle spline shaft:￠30X61, 6-30X25X6 ，link thread :M8
F-rectangle spline shaft:￠30X61, 6-30X25X8 ，link thread :M8
G-cylinder shaft:￠32X57, parallel key:10X8X45, link thread :M8
H-cylinder shaft:￠35X56, parallel key:10X8X45, link thread :M8
I-cylinder shaft: ￠31.75X47, parallel key:7.96X7.96X32, link thread:3/8-16UNC
J-rectangle spline shaft:￠25.3X40, 6-25.3X21.5X6.25 ，link thread :1/4-20UNC
K-involute spline shaft: ￠31.75X58, 14 teeth,DP12/24 , link thread :M8
L-involute spline shaft: ￠31.75X48, 14 teeth,DP12/24 , link thread:3/8-16UNC
5. Oil port :A-2-M22X1.5 ,B-2-7/8-14UNF SAE ,C-2-G1/2 ,D-2-1/2-14NPTF ,E-2-PT1/2
6. Link thread on port surface:A-NONE ,B-4-M8 ,C-4-5/16-UNC
7. Drain port: A-NONE ,B-M14X1.5,C-G1/4,D-7/16-20UNF,E-PT1/4
8. Special : A-NONE
Order example: BM4AABCBAAA
