U.S.TSUBAKI, INC.
ENGINEERING CLASS
A unique geometry available in 6- or 8-tooth sprockets.
Sprockets for Engineering Class DOUBLE PLUS ® CHAIN
Upper dimensions-inches Lower dimensions-mm
Number
Pitch
Outer
Tooth
Tooth
Stock Bore Max.
Hub Dia.
Hub
Approx.
of
Dia.
Dia.
Thickness Thickness
Dia.
Bore
Length Weight
Sprocket No.
Teeth
D p
D o
T
T 1
M
d
D h
L
lbs. (kg)
RF03075VR-6T
6
5.906
6.22
1.57 (40) 1.77 (45) 1.77 (45) 1.97 (50) 2.36 (60) 2.76 (70) 2.76 (70) 2.95 (75) 3.15 (80) 3.35 (85) 3.74 (95) 3.94 (100)
2.56 (65) 2.76 (70) 2.76 (70) 3.15 (80) 3.74 (95) 4.13 (105)
2.17 (55) 2.36 (60) 2.36 (60) 2.76 (70) 3.15 (80) 3.54 (90) 3.54 (90) 3.94 (100)
6.6
(150.0)
(158)
0.20
0.24
1.024 (26.0)
0.79 (20)
(3.0)
RF03075VR-8T
8
7.717
8.23
(5)
(6)
9.9
(196.0)
(209)
(4.5)
RF03100VR-6T
6
7.874
8.11
9.9
(200.0) 10.287 (261.3)
(206) 10.71 (272)
0.20
0.24
1.024 (26.0)
0.79 (20)
(4.5) 16.5 (7.5) 16.5 (7.5) 28.7 (13) 33.1 (15) 52.9 (24) 44.1 (20) 70.6 (32) 64.0 (29) 92.7 (42) 94.9 (43)
RF03100VR-8T
8
(5)
(6)
RF05100VR-6T
6
7.874
8.07
(200.0) 10.287 (261.3) 11.811 (300.0) 15.433 (392.0) 11.811 (300.0) 15.433 (392.0) 12.000 (304.8) 15.677 (398.2) 15.748 (400.0) 20.575 (522.6) 15.748 (400.0) 20.575 (522.6)
(205) 10.75 (273) 11.97 (304) 15.83 (402) 12.17 (309) 16.06 (408) 12.99 (330) 17.01 (432) 17.09 (434) 21.93 (557) 17.28 (439) 22.13 (562)
0.31
0.35
1.398 (35.5)
0.98 (25)
RF05100VR-8T
8
(8)
(9)
RF05150VR-6T
6
0.98 (25) 1.18 (30) 1.18 (30) 1.38 (35)
4.13
0.31
0.35
1.398 (35.5)
(105) 4.53 (115)
RF05150VR-8T
8
(8)
(9)
RF10150VR-6T
6
4.92
4.13
0.43 (11)
0.47 (12)
1.890 (48.0)
(125)
(105) 4.53 (115)
RF10150VR-8T
8
5.31
(135)
RF6025VR-6T
6
0.55 (14)
0.63 (16)
2.205 (56.0)
1.38 (35)
5.71
4.92
RF6025VR-8T
8
(145)
(125)
RF12200VR-6T
6
1.38 (35) 1.57 (40) 1.57 (40) 1.77 (45)
3.94
5.71
4.92
0.55 (14)
0.63 (16)
2.205 (56.0)
(100) 4.33 (110) 4.33 (110) 4.72 (120)
(145)
(125)
RF12200VR-8T
8
6.10
5.31
147.8
(155)
(135)
(67)
RF17200VR-6T
6
6.10
5.31
103.7
0.59 (15)
0.63 (16)
2.441 (62.0)
(155)
(135)
(47)
RF17200VR-8T
8
6.89
5.91
167.7
(175)
(150)
(76)
7
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