Tsubaki: The solution for shaft locking devices
SELECTION GUIDE AND PROCEDURE Technical Notes
STEP 4 Pressure System Designs
Dimension X (mm) No. of EL installed
Pressure Sleeve Diameters (mm)
Model Number
Pressure flanges experience a great deal of stress while locking bolts are being tightened. To avoid plastic deformation, use a pressure flange with the appropriate material strength and provide enough leeway in the design to account for some stress. Provided below are example pressure system design and calculations.
1
2
3
4
d1
D1
PL010X013E
2
2
3
3
10.1
12.9
PL011X014E
2
2
3
3
11.1
13.9
PL012X015E
2
2
3
3
12.1
14.9
PL013X016E
2
2
3
3
13.1
15.9
PL014X018E
3
3
4
5
14.1
17.9
PL015X019E
3
3
4
5
15.1
18.9
PL016X020E
3
3
4
5
16.1
19.9
PL017X021E
3
3
4
5
17.1
20.9
PL018X022E
3
3
4
5
18.1
21.9
PL019X024E
3
3
4
5
19.2
23.8
PL020X025E
3
3
4
5
20.2
24.8
PL022X026E
3
3
4
5
22.2
25.8
PL024X028E
3
3
4
5
24.2
27.8
PL025X030E
3
3
4
5
25.2
29.8
PL028X032E
3
3
4
5
28.2
31.8
PL030X035E
3
3
4
5
30.2
34.8
PL032X036E
3
3
4
5
32.2
35.8
5
35.2
39.8
PL035X040E
3
3
4
PL036X042E
3
3
4
5
36.2
41.8
See table on the right for d 1 , D 1 and X dimensions.
PL038X044E
3
3
4
5
38.2
43.8
PL040X045E
3
4
5
6
40.2
44.8
(1) Bolt Pitch Circle Diameter dp B , dp S mm （ When d＝φ10〜φ30）
PL042X048E
3
4
5
6
42.2
47.8
PL045X052E
3
4
5
6
45.2
51.8
dp B ＝D＋8＋d G dp S ＝d−8−d G （When d＝φ32〜φ150）
PL048X055E
3
4
5
6
48.2
54.8
PL050X057E
3
4
5
6
50.2
56.8
PL055X062E
3
4
5
6
55.2
61.8
dp B ＝D＋10＋d G dp S ＝d−10−d G
PL056X064E
3
4
5
7
56.2
63.8
PL060X068E
3
4
5
7
60.2
67.8
PL063X071E
3
4
5
7
63.2
70.8
However, if you are mounting a pressure flange to the hub, use 1/2 of the maximum number of bolts allowed or less, so that they may fit into the dp B circumference. (2) Thickness of Pressure Flange < F mm < F ≧2×d G (3) Strength of Pressure Flange （ σ 0.2F ） When tightening with the torque required for 8.8 bolts. σ 0.2F ≧ 42,600 psi (1035 steel) When tightening with the torque required for 10.9 bolts. σ 0.2F ≧ 49,700 psi (1045 steel) When tightening with the torque required for 12.9 bolts.
PL065X073E
3
4
5
7
65.2
72.8
PL070X079E
3
5
6
7
70.3
78.7
PL071X080E
3
5
6
7
71.3
79.7
PL075X084E
3
5
6
7
75.3
83.7
PL080X091E
4
5
6
8
80.3
90.7
PL085X096E
4
5
6
8
85.3
95.7
PL090X101E
4
5
6
8
90.3
100.7
95.3
105.7
PL095X106E
4
5
6
8
PL100X114E
4
6
7
9
100.3
113.7
PL110X124E
4
6
7
9
110.3
123.7
PL120X134E
4
6
7
9
120.3
133.7
PL130X148E
5
7
9 11
130.4
147.6
σ 0.2F ≧ 56,900 psi (1055 steel) σ 0.2F ： Yield point of pressure flange (4) Functioning Length of the Screw < B mm < B ≧1.5×d G
PL140X158E
5
7
9 11
140.4
157.6
PL150X168E 167.6 NOTE: Dimension X plus 3-mm is the minimum Pressure Sleeve length. 5 7 9 11 140.4
73
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