Balance Locknut SBL-A Series

Superfine Balanced Locknuts

Feature

SBL-A Precision Locknut
Lock screws intersect at a 30° angle. Superior to traditional locknuts with only 3 lock screws, the SBL-A employ 6 lock screws to the axis. Perfect mesh. Precision and balanced compression. Zero loosening under any load or speed. Inner threads, outer skirts, clamping and trailing rims are all precision ground, minimizing noise and vibration.
 
  • Material Composition: SCM440(42CrMo4)
  • Hardness: HRC48° ~52°
  • Thread Precision: ISO 4H
  • Parallelism: 0.002mm
  • Edge Bevel: 0.002mm
  • Concentricity: 0.005mm

Specification

Thread
D
h
d
UxV
C
F
mxn
MAX.Nm
Loosening
Torque Nm
SBL-A
M20x1
38
16
33
ø4.3
x3
13
5
M5x6
4.5
28.9
SBL-A
M20x1.5
M6x6
8.0
SBL-A
M25x1.5
18
16
30.4
SBL-A
M30x1.5
45
40
19
32.4
SBL-A
M35x1.5
52
47
22
M8x6
18.0
39.2
SBL-A
M40x1.5
58
20
52
25
46.1
SBL-A
M45x1.5
65
59
28
61.8
SBL-A
M50x1.5
70
64
30
70.6
SBL-A
M55x2
75
22
68
33
88.2
SBL-A
M60x2
80
73
ø5.3
x3
35
6
98.0
SBL-A
M65x2
85
78
38
127.5
SBL-A
M70x2
92
24
84
41
147.1
SBL-A
M75x2
98
90
43
152.0
SBL-A
M80x2
105
96
46
156.9
SBL-A
M85x2
110
102
ø6.4
x3
49
7
176.5
SBL-A
M90x2
120
26
108
53
186.3
SBL-A
M95x2
125
113
55
201.0
SBL-A
M100x2
130
118
58
220.6
SBL-A
M105x2
140
28
125
61
M10x6
35.0
236.3
SBL-A
M110x2
145
132
64
252.0
SBL-A
M115x2
150
137
66
268.1
SBL-A
M120x2
155
30
142
69
279.4
SBL-A
M125x2
160
147
71
289.2
SBL-A
M130x2
165
152
74
313.7
SBL-A
M135x2
175
32
160
78
352.9
SBL-A
M140x2
180
165
80
392.2
SBL-A
M145x2
190
175
84
436.3
SBL-A
M150x2
195
180
86
480.4