TTsuBAKI
Ø
PIN
C
B Ø BUSHING
®
E
F
A
H
G
Attachment Styles
PITCH
D
INVERTED FORGED LUG
FORGED LUG
DUAL EXTENDED PINS WITH EXTRA CLOSING BAR
DUAL THREADED EXTENDED PINS
DUAL EXTENDED PINS
Dimensions
Max Working
Chain Number
Attachment Detail
AUS (lbs.)
Inside Width
Bushing Diameter
Pin Diameter
Sidebar Height
Sidebar Thick
Pin Head to CL
Pin End to CL
Overall Width
Pitch
Load (lbs.)
A
B
C
D
E
F
G
H
FB3067
3.067
See page 171
1.56
1.50
0.75
2.25
0.38
1.72
2.13
3.84
141,000
7,600
See page 172
1.31
1.25
0.68
1.50
0.38
1.63
1.88
3.50
69,000
4,900
FB3075
3.075
1.88
1.50
0.99
2.50
.56/.50
2.28
2.72
5.00
160,000
10,400
FB3035
3.000/3.500 See page 173
1.88
1.50
0.99
2.50
.56/.50
2.28
2.72
5.00
160,000
10,400
FB3040
3.000/4.000 See page 174
See page 175
2.25
1.75
1.13
2.75
.56/.50
2.47
2.91
5.38
164,000
13,300
FB3500
3.500
See page 176
2.25
1.75
1.19
2.75
0.56
2.53
2.84
5.37
160,000
14,000
FB3750
3.750
See page 177
1.94
1.75
0.94
2.38
0.56
2.45
2.75
5.20
140,000
10,000
FB4000
4.000
FB4500
4.500
See page 178
2.75
2.38
1.37
3.50
0.63
2.91
3.34
6.25
283,500
19,200
See page 179
2.75
2.50
1.46
4.00
.75
3.19
3.63
6.81
315,000
21,700
FB5500
5.500
See page 180
3.63
2.75
1.75
4.50
.88/.75
3.84
4.17
8.02
480,000
33,000
FB6000
6.000
PINS
SIDEBARS
BUSHINGS
• Premium grade alloy steel. • Heat treated for superior strength and toughness. s Core – Through hardened for superior impact resistance. s Surface – Induction hardened for extended wear resistance. • Precision manufactured to maintain high interference fit with sidebars. • Prevents pin rotation and subsequent sidebar wear.
• Alloy or premium grade carbon steel. • Through hardened for superior strength, toughness and fatigue resistance. • Induction hardened sidebar edges are also available for extended wear resistance. • Proprietary manufacturing processes ensure consistent hole quality and precise pitch control. • High quality hole finish increases fatigue resistance.
• Premium alloy steel. • Heat treated for superior strength. s Core – Through hardened for toughness/impact resistance. s Surface – Case hardened for ultimate/extended wear resistance. • Precision manufactured to maintain high interference fit with sidebars. • Favorable residual stresses resist fatigue and allow for extended life.
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