Tsubaki: The choice for chain TM
POWER-LOCK ® SPECIFICATIONS
Locking Bolts
Contact Pressure (psi) Shaft
––––––––––––––––––––––––––––––
Dimensions (inch)
Hub Counter I.D.
Shaft O.D.
Tightening Torque
Approx. Weight
Transmissible Torque Mt.
Transmissible Thrust Pax
Tolerance
Tolerance ––––––––––––––––––––
Hub Bore
Model Number
d
t 1
D
t 2
L
L 1
(ft-lbs)
(lbs)
P
P 1
Quanity Size
(ft-lbs)
(lbs) .462 .396 .484 .550 .528 .660 .594 .748 .704 1.232 1.227 1.298 1.232 1.474 1.364 1.584 1.496 1.408 1.650 1.584 1.518 2.662 2.926 2.816 3.190 3.058 3.432 3.322 3.388 4.598 4.796
l
PL 3/4 SS PL 7/8 SS
.7500 .8750
1.850 1.850 1.969 2.165 2.159 2.362 2.365 2.559 2.559 2.953 2.953 3.150 3.150 3.346 3.346 3.543 3.543 3.531 3.740 3.740 3.737 4.337 4.528 4.528 4.724 4.921 5.118 5.118 5.350 5.708 5.843
.787
.709 1.024 152 .709 1.024 178 .709 1.024 271 .709 1.024 305 .709 1.055 322 .709 1.024 423 .709 1.009 465 .709 1.024 535 .709 1.024 559 .827 1.260 901 .827 1.260 970 .827 1.260 1,040 .827 1.260 1,074 .827 1.260 1,355 .827 1.260 1,440 .827 1.260 1,482 .827 1.260 1,525
4,870 4,870 6,490 6,490 6,490s 8,120 8,120 8,930 8,930 13,300 13,300 13,300 13,300 16,260 16,260 16,260 16,260 16,260 17,740 17,740 17,740 26,270 26,270 26,270 26,270 28,660 28,660 28,660 31,050 38,240 38,240
25,400 10,300 21,770 10,300 25,400 12,900 22,580 11,730 21,390 11,760 25,400 13,440 23,090 13,420 24,300 13,650 23,280 13,650 27,440 15,100 25,480 15,100 23,780 14,150 23,010 14,150 27,250 16,290 25,650 16,290 24,910 15,380 24,200 15,380 22,950 15,430 24,390 15,890 23,780 15,890 23,200 15,910 26,910 17,060 25,740 16,340 25,190 16,340 24,660 15,660 23,920 16,400 23,480 15,770 23,060 15,770 23,320 16,480 23,570 16,260 23,200 15,880
6 6 8 8 8
M 6 X 18 10.1 M 6 X 18 10.1 M 6 X 18 10.1 M 6 X 18 10.1 M 6 X 18 10.1
-0.0013”
+0.0013” .787
PL1 SS
1.0000 +0
-0
.787 .787 .819 .787 .773 .787
PL1 1/8 SS
1.1250
PL1 3/16 SS 1.1875
PL1 1/4 SS PL1 3/8 SS
1.2500 1.3750
10 M 6 X 18 10.1 10 M 6 X 18 10.1 11 M 6 X 18 10.1 11 M 6 X 18 10.1
PL1 7/16 SS 1.4375
PL1 1/2 SS PL1 5/8 SS PL1 3/4 SS PL1 7/8 SS
1.5000 -0.0015”
+0.0015” .787
1.6250 +0
-0
.945 .945 .945 .945 .945 .945 .945 .945
9 9 9 9
M 8 X 22 24.6 M 8 X 22 24.6 M 8 X 22 24.6 M 8 X 22 24.6
1.7500 1.8750
PL1 15/16 SS 1.9375
PL2 SS
2.0000 2.1250
11 M 8 X 22 24.6 11 M 8 X 22 24.6 11 M 8 X 22 24.6 11 M 8 X 22 24.6 11 M 8 X 22 24.6 12 M 8 X 22 24.6 12 M 8 X 22 24.6 12 M 8 X 22 24.6 11 M 10 X 25 50.0 11 M 10 X 25 50.0 11 M 10 X 25 50.0 11 M 10 X 25 50.0 12 M 10 X 25 50.0 12 M 10 X 25 50.0 12 M 10 X 25 50.0 13 M 10 X 25 50.0 11 M 12 X 30 86.9 11 M 12 X 30 86.9
PL2 1/8 SS
PL2 3/16 SS 2.1875
PL2 1/4 SS PL2 3/8 SS
2.2500 2.3750
1.008 .827 1.323 1,610
PL2 7/16 SS 2.4375 -0.0018”
+0.0018” .945
.827 1.260 1,802 .827 1.260 1,848 .827 1.277 1,894
PL2 1/2 SS
2.5000 +0
-0
.945 .962
PL2 9/16 SS 2.5625
PL2 3/4 SS PL2 7/8 SS
2.7500 2.8750
1.073 .984 1.467 3,011 1.102 .984 1.496 3,147 1.102 .984 1.496 3,216 1.102 .984 1.496 3,284 1.102 .984 1.496 4,031 1.102 .984 1.496 4,105
PL2 15/16 SS 2.9375
PL3 SS
3.0000 3.3750
PL3 3/8 SS
PL3 7/16 SS 3.4375
PL3 1/2 SS PL3 3/4 SS
3.5000 -0.0021”
+0.0021” 1.102 .984 1.496 4,180
3.7500 +0
-0
1.151 .984 1.544 4,852 1.302 1.142 1.774 6,275 1.299 1.142 1.772 6,375
PL3 15/16 SS 3.9375
PL4 SS
4.0000
CONSTRUCTION
The POWER-LOCK ® is composed of five parts: taper ring (A), taper ring (B), outer ring, inner ring, and locking bolts. Locking is achieved by tightening the bolts.
CONNECTING PRINCIPLE
Taper rings (A) and (B) fit perfectly with the tapered inner and outer rings. By tightening the locking bolts, taper rings (A) and (B) generate clamping pressures (P’ and P) against the outer and inner rings to produce the frictional force to join the shaft and hub. A slit is provided on the circumference of the outer and inner rings to prevent reduction of the clamping force.
Locking Bolts
Taper Ring (A)
Outer Ring
Inner Ring
Taper Ring (B)
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