Inch and Metric Size, Aluminum
Quick Release Set Collars
GN 704
GN 704

RoHS Compliant

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DIN 704
Specification
Information

Body: Aluminum, black anodized
Lever: Aluminum, yellow anodized

Unlike thrust bolts or clamping screws, GN 704 quick release set collars generate locking force on the shaft via a cam lever.
This quick release design allows the collars to be set or adjusted rapidly and without tools.
The aluminum design results in low mass inertia values.

See our technical section
for metric bore tolerance(s)
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HERE
Inch Table

Dimensions in:

inches
(millimeters)

Part Number d1 d2
Required Shaft Tol. H8
b s
704-38-B.375
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1.5
(38)
.375
(9.5)
.39
(10)
.06
(1.5)
704-38-B.500
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1.5
(38)
.500
(12.7)
.39
(10)
.06
(1.5)
704-38-B.625
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1.5
(38)
.625
(15.9)
.39
(10)
.06
(1.5)
704-50-B.750
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1.97
(50)
.750
(19.0)
.51
(13)
.06
(1.5)
704-50-B1.00
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1.97
(50)
1.000
(25.4)
.51
(13)
.06
(1.5)
704-50-B1.125
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1.97
(50)
1.125
(28.6)
.51
(13)
.06
(1.5)
704-75-B1.25
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2.95
(75)
1.250
(31.8)
.59
(15)
.06
(1.5)
704-75-B1.375
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2.95
(75)
1.375
(35.0)
.59
(15)
.06
(1.5)
704-75-B1.50
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2.95
(75)
1.500
(38.1)
.59
(15)
.06
(1.5)
Metric Table

Dimensions in:

millimeters
(inches)

Part Number d1 d2
Required Shaft Tol. H8
b s
704-38-B6
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38
(1.50)
6
(.24)
10
(.39)
1.5
(.06)
704-38-B8
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38
(1.50)
8
(.31)
10
(.39)
1.5
(.06)
704-38-B10
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38
(1.50)
10
(.39)
10
(.39)
1.5
(.06)
704-38-B12
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38
(1.50)
12
(.47)
10
(.39)
1.5
(.06)
704-38-B14
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38
(1.50)
14
(.55)
10
(.39)
1.5
(.06)
704-38-B15
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38
(1.50)
15
(.59)
10
(.39)
1.5
(.06)
704-38-B16
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38
(1.50)
16
(.63)
10
(.39)
1.5
(.06)
704-50-B20
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50
(1.97)
20
(.78)
13
(.51)
1.5
(.06)
704-50-B25
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50
(1.97)
25
(.98)
13
(.51)
1.5
(.06)
704-50-B28
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50
(1.97)
28
(1.10)
13
(.51)
1.5
(.06)
704-50-B30
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50
(1.97)
30
(1.18)
13
(.51)
1.5
(.06)
704-75-B32
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75
(2.95)
32
(1.26)
15
(.59)
1.5
(.06)
704-75-B35
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75
(2.95)
35
(1.38)
15
(.59)
1.5
(.06)
704-75-B38
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75
(2.95)
38
(1.50)
15
(.59)
1.5
(.06)