ASJU

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Features

・Compact,strong, and excellent durability.
・Wide product range enables selection of the ideal size.
・Combination of sintered stainless hubs and a carbon FRP.

 asju 01

Configuration and materials

 

asju zumen en

asju hinban en

・Key groove shape complies with new JIS standards.Special key grooves should be shown in separate drawings.
・For d1 and d2,ordera for hole diameters other than the standard values can be made.
・Feel free to consult us about custom orders.
・Combinations of set screw and clamp styles can also be costomized.

Dimensions of key groove shape

asju keymizo
Hole diameter
d1,d2		KbtNominal dimension of keys
bxh
Basic dimen
sion		Tole
rance		Basic dimen
sion		Tole
rance
6-8 2 2 ±0.0125 1.0 +0.1
0		 2x2
8-10 3 3 1.4 3x3
10-12 4 4 ±0.0150 1.8 4x4
12-17 5 5 2.3 5x5
17-20 6 6 2.8 6x6

Dimensions

Item
No.		D

Standard hole diameters ød1,ød2 H8

Dsd3LFL1

M 

Fastening
torque
(N⋅m)
ASJU15 14.5 4 5 6 6.35                       16 5.0 18.8 3.3 6.6 2.5 1.0
ASJU17 16.8   5 6 6.35                       19 7.2 24.4 4.3 8.8 3 1.8
ASJU20 20     6 6.35 8 9.53 10                 22 8.2 27.4 4.8 10 3 1.8
ASJU26 26     6 6.35 8 9.53 10 12               28 12 30.4 5.5 11.5 4 4.5*1
ASJU30 30          8   10                 32.5  13  33  6.0  12  5 8.0
              12 14             4 4.5
ASJU34 34             10 12 14            

 37

 14 34 6.3 13 5 8.0*2
ASJU38 38             10 12 14 15 16 17 18 19 20  41 16 40 7.3 15 5 8.0

 ・If the torque applied to the coupling is small,wear is suppressed. Even if the eccentricity is somewhat large,the amount of wear will not increase.

 ・The dimension Ds is the circumference of the clamp bolt head.

 *1 The clamp bolt fastening torque for ASJU26 is 3.8N･m when the hole diameters (d1,d2) are ≧12.

 *2 The clamp bolt fastening torque for ASJU34 is 5.4N･m when the hole diameters (d1,d2) are ≧16.

Specifications

Item No.

Transmission torque

(N⋅m)

Allowable misalignmentTorsional rigidity
(N⋅m/rad)

Maximum

rotating speed
(rpm)

Moment of inertia
(kg⋅m2)		Mass
(g)
Rated torqueMaximum torqueparallel misalignment
(mm)

angular misalignment

(°)

ASJU15 1.6 5 0.5 1.5 90 10,000 4.1x10-7 15
17 2.2 7 0.5 1.5 250 10,000 1.0x10-6 28
20 3.2 10 0.5 1.5 340 8,000 2.0x10-6 40
26 6 22 0.6 1.5 420 6,500 7.3x10-6 85
30 15 45 0.7 1.5 1,200 6,200 1.4x10-5 100
34 16 60 0.7 1.5 2,400 6,000 2.4x10-5 140
38 28 85 0.7 1.5 3,500 5,800 4.3x10-5 215

・Heat resistance(ambient temperature): -30℃ to 80℃.

・When the hole diameter exceeds dimension d3 characteristics such as the rated torque may deteriorate.
・Maximum permissoble eccentricity and declination are not guaranteed to be used under rated torque. The amount of eccentricity and declination affects the speed of wear, by synergistic with the operating torque and rotating speed.

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