5 ) Kinds Of Motor P Ulle Y S , Belts And Frame Sup P @Rt Plate Bolts - JUKI MO-6000S Series Engineer's Manual

{5) Kinds of motor pulleys, belts
1) Motor pulleys and bells
MO-6/\00S(R)
Sewing speed of
sewing machine
Outside diameter
of motor pulley
( rpm)
mm (Effective
diameter mm}
8500 160(155)
8000 150 (145)
7500 140 (135)
7000
130(125)
6500 120(115)
- -- - --
6000 110(105)
5500
100 (95)
5000 90 (85)
4500 85 (80)
4000 75 (70)
MO-6900G(J)
Sewing speed of
sewing machine
Outside diameter
of motor pulley
{rpm)
mm (E:.ffective
diameter mm)
f-�----
6000 125 (120)
-----
5500 115 (110)
5000
105 (100)
4500 95 (90)
4000 85 (80)
Use a motor of 3/4 HP (550 W) when the sewing machine runs at 7,000 rpm or higher speed.
Use a motor of 1/2 HP (400 W) when the sewing machine runs at a speed lower than 7,000 rpm.
(Caution) If a motor of less than 400W is used, in the low lenperatlm, area, viscosity of oil increases
and the sewing speed may not increase or the sewing machine may fail to run in some
cases.
' Part No. of motor pulley
MTKPOxxxOOO (Enter the effectivH diameter to "xxx.")
If the outside diameter of the motor pulley is 150 mm, the effective pulley will be 145.
_____ So, the part No_ will be MTKP0145000.
If the outside diameter of the motor pulley is 90 mm, the effective pulley will be 085.
_____ So, the part No. will be MTKP008500Q_
• Part No_ of belt
MT JVMOOxxOO (Enter a number that shows the belt length to "xx.")
If the belt length is 101 (1 mm (40 inches), enter "40" to "xx."
_____ So, the part No_ will be MT JVM004000.
If the belt length is 889 mm (35 inches), enter "35" to "xx_''
the part No_ will be MTJVM003500.
frame support plate
50 Hz
V�be!t
Outside diameter
of motor pulley
Semi-sunken Fully-sunken
mm (Effective
type mm (inch) type mm (inch)
diameter mm)
1016 (40) 914 (36)
1016 (40) 864 (34)
965 (38) 864 (34)
965 (38) 864 (34)
965 (38) 813 (32)
914 (36) 813 (32)
914 (36) 813 (32)
889 (35) 762 (30)
889 (35) 762 (30)
864 (34) 762 (30)
50 Hz
V-belt
Outside diameter
of motor pulley
Semi-sunken Fu!ly-sunken
mm (Effective
type mm (inch) type mm (inch)
diameter mm}
965 (38) 864 (34)
838 (33)
940 (37)
838 (33)
914 (36)
914 (36) 813 (32)
889 (35) 787 (31)
- 72-
60 Hz
V-·belt
Semi-sunken Fully-sunken
type mm (inch) type mm (inch)
135 (130) 965 (38) 864 (34 )
125(120) 965 (38) 813 (32)
120(115) 965 (38)- -81:J (32)
813 (32)
110 (105) 914 (36)
100 (95) 914 (36) 813 (32)
95(90) 889 (35) 762(30)
762 (30)
85(80) 889 (35)
80(75) 864 (34) 762 (30)
70(65) 864 ( 34 ) __ 762 (30)
60(55) 864 ( 34 ) 737 (29)
60 Hz
V--be!t
Semi--st.mken
type mm (inch)
type mm (inch)
83 8 (33)
105 (100) 914 (:l6)
95(90) 914 (36) 813 (32 )
85(80) 889 (35) 7 8 7 l31L_
80(75 ) 78 7 ( 31) _ _
889 (35)
70(65) 889 (35) 787 (31)
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