BF Precision Locknut - Flank Locking
The locknut setscrews intersect at a 30° 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.
- The connecting face and thread area are all produced by high precision grinding process.
‧Material：JIS SCM440/DIN42CrMo4/AISI 414
‧Hardness：HRC 28-32
‧Precision：ISO 4H
‧The maximum runout between locating face and thread is 0.002 mm
NIKKI Product Spec
TYPE & Pitch
|
Dimensions
|
Axial Load Static
kN
|
Loosening Torque
kg-cm
|
Screw
|
Screw Torque
|
D
|
h
|
g
|
t
|
d
|
DIN
|
MAX kg-cm
|
BF15 x1.0P
|
30
|
25
|
14
|
3X4
|
2
|
60
|
250
|
M5
|
48
|
BF17 x 1.0P
|
32
|
27
|
16
|
70
|
300
|
BF20X1.0P
|
38
|
33
|
90
|
400
|
M6
|
80
|
BF20X1.5P
|
90
|
400
|
BF25X1.5P
|
18
|
3X5
|
120
|
800
|
BF30X1.5P
|
45
|
40
|
145
|
1400
|
BF35 x 1.5P
|
52
|
47
|
170
|
1800
|
M8
|
190
|
BF40 x 1.5P
|
58
|
52
|
20
|
3X6
|
2.5
|
190
|
2200
|
BF45 x 1.5P
|
65
|
59
|
220
|
2500
|
BF50 x 1.5P
|
70
|
64
|
250
|
2700
|
BF55 x 2.0P
|
75
|
68
|
22
|
3X7
|
3
|
310
|
2900
|
BF60 x 2.0P
|
80
|
73
|
350
|
3100
|
BF65 x 2.0P
|
85
|
78
|
400
|
3200
|
BF70 x 2.0P
|
92
|
84
|
24
|
3X8
|
3.5
|
450
|
3400
|
BF75 x 2.0P
|
98
|
90
|
480
|
3600
|
BF80 x 2.0P
|
105
|
96
|
580
|
3800
|
BF85 x 2.0P
|
110
|
102
|
620
|
4000
|
BF90 x 2.0P
|
120
|
108
|
26
|
6X10
|
4
|
680
|
4500
|
BF95 x 2.0P
|
125
|
113
|
720
|
4750
|
BF100 x 2.0P
|
130
|
118
|
740
|
5000
|
BF105 x 2.0P
|
140
|
125
|
28
|
770
|
5250
|
M10
|
360
|
BF110 x 2.0P
|
145
|
132
|
800
|
5500
|
BF115 x 2.0P
|
150
|
137
|
830
|
5750
|
BF120 x 2.0P
|
155
|
142
|
30
|
6X12
|
5
|
860
|
6000
|
BF125 x 2.0P
|
160
|
147
|
890
|
6250
|
BF130 x 2.0P
|
165
|
152
|
920
|
6500
|
BF135 x 2.0P
|
175
|
160
|
32
|
950
|
6750
|
BF140 x 2.0P
|
180
|
165
|
980
|
7000
|
BF145 x 2.0P
|
190
|
175
|
1010
|
7250
|
B150 x 2.0P
|
195
|
180
|
1050
|
7500
|
BF155 x3.0P
|
200
|
34
|
6X14
|
6
|
1100
|
7750
|
BF160 x 3.0P
|
210
|
190
|
1200
|
8000
|
BF165 x 3.0P
|
1230
|
8250
|
BF170 x 3.0P
|
220
|
200
|
1260
|
8500
|
BF180 x 3.0P
|
230
|
205
|
36
|
6X16
|
7
|
1370
|
9000
|
M12
|
600
|
BF190 x 3.0P
|
240
|
215
|
1430
|
9500
|
BF200 x 3.0P
|
250
|
225
|
38
|
1500
|
9900
|
Remark
‧When ordering above products, please refer to the TYPE & Pitch.
‧If left hand thread required, please notify “L” after the TYPE & Pitch. For example:BF25X1.5P-L
‧If inch thread required, please refer to the TYPE & Pitch. For example:BF25-U20
‧To prevent the locknuts are in short supply, please send your order in advance.