NIKKI PRECISION LOCKNUT
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Radial Locking Series
SRZ Locknuts
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SRZ Precision Locknut - Radial Locking
The series locknut is designed for special area in where space is limited.
The locknut setscrews intersect at a 90° angle which drives the locking brass to stick perfectly on the shaft’s thread flank.
No thrust washer or keyway needed.
Easy to assemble and disassemble.
Can be re-used if handled properly.
‧
Material:JIS SCM440/DIN42CrMo4/AISI 4140
‧Hardness:HRC 28-32
‧Precision:ISO 4H
‧The maximum runout between locating face and thread is 0.005 mm
NIKKI Product Spec:
TYPE & Pitch
Dimensions
Screw
Screw Torque
D
h
g
t
d
DIN
MAX kg-cm
SRZ8X0.75P
16
8
3
2
11
M4
22
SRZ10X0.75P
18
13
SRZ12X1.0P
22
18
SRZ15X1.0P
25
21
SRZ17X1.0P
28
10
4
23
M5
48
SRZ20X1.0P
32
27
SRZ20X1.5P
SRZ25X1.5P
38
12
5
33
M6
80
SRZ30X1.5P
45
40
SRZ35X1.5P
52
47
SRZ40X1.5P
58
14
6
2.5
52
SRZ45X1.5P
65
59
SRZ50X1.5P
70
64
SRZ55X2.0P
75
16
7
3
68
SRZ60X2.0P
80
73
SRZ65X2.0P
85
78
SRZ70X2.0P
92
18
8
3.5
85
M8
190
SRZ75X2.0P
98
90
SRZ80X2.0P
105
95
SRZ85X2.0P
110
102
SRZ90X2.0P
120
20
10
4
108
SRZ95X2.0P
125
113
SRZ100X2.0P
130
120
SRZ105X2.0P
140
22
12
5
126
M10
360
SRZ110X2.0P
145
133
SRZ115X2.0P
150
137
SRZ120X2.0P
155
24
138
SRZ125X2.0P
160
148
SRZ130X2.0P
165
149
SRZ135X2.0P
175
26
14
6
160
M12
600
SRZ140X2.0P
180
SRZ145X2.0P
190
172
SRZ150X2.0P
195
171
SRZ155X3.0P
200
28
16
7
182
SRZ160X3.0P
210
SRZ165X3.0P
210
193
SRZ170X3.0P
220
SRZ180X3.0P
230
30
18
8
203
SRZ190X3.0P
240
214
SRZ200X3.0P
250
32
226
Remark
‧When ordering above products, please refer to the TYPE & Pitch.
‧To prevent above locknuts are in short supply, please send your order in advance.
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