CHAIN TENSIONER - AUTOMATIC TYPE
MAXTON series automated chain tensioners * Automatic tensioning * Stable vibration dampening * Operates on return side in any position * Simple adjusting * Quick and easy installation AUTOMATIC TENSIONER 48.5 28.5 17.5 63 38 M6 TH-1
ENGINEERING DATA
TH-2
51.5
M8
71
32
Engineering Data Alterations Sprocket Hardening Sprocket Tooth Dimensions Sprocket Pitch Diameter Constants Sprocket Speed Ratios Sprocket Diameters Standard Keyway and Set Screws TAPER-LOCK ® Shallow Keyway Dimensions QD ® Shallow Keyway Dimensions Maintenance Checklist Safety Warning Other Sprocket Considerations Terms and Conditions of Sale
209 210 - 213 214 215 216 217 218 - 220 221 222 223 224 225 226 - 227 228
17.5
46
All dimensions in millimeters unless noted.
Push-up Force (lbs.)
2-M8 Automated Model Number
Chain Size
Stroke (S)
Min.
Max
35
TH1 TH1 TH2 TH2 TH2
25.0 25.0 45.0 45.0 45.0
8.81 8.81
26.44 26.44 66.10 66.10 66.10
2-M8
40, 41
50 60 80
22.03 22.03 22.03
Adapter (Note: S1 and S2 adapter work with both Tensioner TH1 and TH2)
TH-1
TH-2 OB Type
BB Type
48.5
51.5
M6
M8
63
28.5
71
32
S1
S2
17.5
38
17.5
46
9
9
2-M8
12.7
7
19
（ 15 ）
（ 12 ）
9
9
50
40 65
75
44.5
32
25.4
26
2-M8
BB Type IDLER SPROCKETS FOR AUTOMATIC TENSIONER OB Type
Idler Sprocket
BB Type
OB Type
S1
S2
Model No.
No. of Teeth
Pitch Diameter (in inches)
Chain Size
Sintered Bushing ID
Ball Bearing ID
9
9
35
20 15 15 14 11
2.397 2.405 3.006 3.371 3.550
（ 15 ） 32 SP-604-OB SP-604-BB SP-515-OB SP-515-BB 9 SP-320-OB SP-320-BB SP-415-OB SP-415-BB
40,41
7 50 60 80
www. ustsubaki .com
12.7
19
（ 12 ）
9
50
40 65
75
44.5
25.4
26
-
SP-811-BB
208
209
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