Metric Size, Aluminum
Bull's-Eye Levels

With Mounting Flange

GN 2277



RoHS Compliant

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Specification
Information

Housing: Aluminum, anodized
Version ALN--natural color finish
Version ALS--black finish
Spirit level element: Glass plastic body
Filling: Colorless-transparent
Casting compound: Mineral-based
Sensitivity: 30 angle minutes, bubble moves by 2 mm

Type A - With mounting flange for bolting to surface
Type B - With mounting flange with collar for inserting into bore holes

Shipping

General Information on bull's-eye levels and screw levels

GN 2277 bull's-eye levels are used to check the horizontal position of jigs, machines, devices, appliances and instruments.
The spirit levels are aligned in relation to the reference surface so that the bubble is located inside the marking ring when the horizontal position of the contact surface is achieved.
See also GN 2277.1 adjustment plates.

Available upon request:
• Filling: green-transparent
• Other sensitivities
• Housing in brass or stainless steel

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Type A - Mounting Flange for Bolting to Surface

Dimensions in:

millimeters
(inches)

Part Number
d1
d2
d3
d4
d5
h1
h2
ALN Natural Finish
ALS Black Finish
20
(.79)
10
(.39)
14
(.55)
17
(.67)
1.8
(.07)
10
(.39)
1.8
(.07)
25
(.98)
12
(.47)
17
(.67)
21
(.83)
2.2
(.09)
10
(.39)
2
(.08)
30
(1.18)
12
(.47)
18
(.71)
24
(.94)
3.2
(.13)
11
(.43)
3
(.12)
40
(1.57)
20
(.79)
28
(1.10)
34.5
(1.36)
3.2
(.13)
14
(.55)
4
(.16)
50
(1.97)
25
(.98)
34
(1.34)
43
(1.69)
3.2
(.13)
15
(.59)
5
(.20)
 
Type B - Mounting Flange with Collar for Inserting into Bore Holes

Dimensions in:

millimeters
(inches)

Part Number
d1
d2
d3
d4
d5
h1
h2
ALN Natural Finish
ALS Black Finish
20
(.79)
10
(.39)
14
(.55)
17
(.67)
1.8
(.07)
10
(.39)
1.8
(.07)
25
(.98)
12
(.47)
17
(.67)
21
(.83)
2.2
(.09)
10
(.39)
2
(.08)
30
(1.18)
12
(.47)
18
(.71)
24
(.94)
3.2
(.13)
11
(.43)
3
(.12)
40
(1.57)
20
(.79)
28
(1.10)
34.5
(1.36)
3.2
(.13)
14
(.55)
4
(.16)
50
(1.97)
25
(.98)
34
(1.34)
43
(1.69)
3.2
(.13)
15
(.59)
5
(.20)