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Series
B1.4842

Bore clamp

Articles and prices on request
Flange-type version, without centring function
double acting, for bore hole diameter 7.8 - 17.7 mm
max. operating pressure 250 bar
Bore clamp
Downloads
Catalogue sheet
ENDEESFRIT
Operating instructions
Information Series
Description
B 1.4842 Bore clamp

The bore clamps are particularly suited for clamping of workpieces with smooth bore holes from diameter 7.8 to 17.7 mm in the support surface.

The bore clamp is a double-acting pull-type cylinder. An exchangeable clamping bushing is fixed to the piston. The four segments of the clamping bushing are radially expanded with spring force by a pyramid-shaped clamping bolt. Thus the expansion force is always the same and independent of the hydraulic clamping pressure. The workpiece is also held without hydraulics by means of the expanded clamping bushing. Both pull-down of the workpiece and unclamping of the clamping bushing are hydraulically controlled. Connecting the positive air pressure protection, the clamping bushing is protected against swarf and coolants. In the hardened support surface for the workpiece there is a bore hole for the pneumatic seat check.

Video
Products (12)
Article available on request
On request, we will check whether the article is still available
body design
manifold-mounting type (12)
type
bore clamp (12)
functioning
double acting (12)
max. operating pressure [bar]
250 (12)
hydraulic ports
O-ring manifold-mounting connection (12)
centring function
without centring (12)
min. clamping diameter [mm]
max. clamping diameter [mm]
max. low-clamping force [kN]
seal
FKM (12)
seat check
pneumatic (12)
connection for positive air pressure protection
with (12)
Item no. CAD datatypefunctioningmax. operating pressure [bar]hydraulic ports
Item no.
4318121A
CAD data
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
Properties
Item no.
4318121B
CAD data
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
Properties
Item no.
4318121C
CAD data
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
Properties
Item no.
4318121D
CAD data
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
Properties
Item no.
4318121E
CAD data
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
Properties
Item no.
4318221F
CAD data
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
Properties
Item no.
4318221G
CAD data
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
Properties
Item no.
4318221H
CAD data
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
Properties
Item no.
4318221K
CAD data
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
Properties
Item no.
4318221L
CAD data
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
Properties
Item no.
4318121A
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
centring function
without centring
body design
manifold-mounting type
min. clamping diameter [mm]
7.8
max. clamping diameter [mm]
8.2
max. low-clamping force [kN]
5.1
seal
FKM
seat check
pneumatic
connection for positive air pressure protection
with
Item no.
4318121B
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
centring function
without centring
body design
manifold-mounting type
min. clamping diameter [mm]
8.3
max. clamping diameter [mm]
9.2
max. low-clamping force [kN]
5.1
seal
FKM
seat check
pneumatic
connection for positive air pressure protection
with
Item no.
4318121C
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
centring function
without centring
body design
manifold-mounting type
min. clamping diameter [mm]
9.3
max. clamping diameter [mm]
9.7
max. low-clamping force [kN]
5.1
seal
FKM
seat check
pneumatic
connection for positive air pressure protection
with
Item no.
4318121D
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
centring function
without centring
body design
manifold-mounting type
min. clamping diameter [mm]
9.8
max. clamping diameter [mm]
10.2
max. low-clamping force [kN]
5.1
seal
FKM
seat check
pneumatic
connection for positive air pressure protection
with
Item no.
4318121E
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
centring function
without centring
body design
manifold-mounting type
min. clamping diameter [mm]
10.3
max. clamping diameter [mm]
11.2
max. low-clamping force [kN]
5.1
seal
FKM
seat check
pneumatic
connection for positive air pressure protection
with
Item no.
4318221F
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
centring function
without centring
body design
manifold-mounting type
min. clamping diameter [mm]
11.3
max. clamping diameter [mm]
11.7
max. low-clamping force [kN]
9.8
seal
FKM
seat check
pneumatic
connection for positive air pressure protection
with
Item no.
4318221G
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
centring function
without centring
body design
manifold-mounting type
min. clamping diameter [mm]
11.8
max. clamping diameter [mm]
12.7
max. low-clamping force [kN]
9.8
seal
FKM
seat check
pneumatic
connection for positive air pressure protection
with
Item no.
4318221H
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
centring function
without centring
body design
manifold-mounting type
min. clamping diameter [mm]
12.8
max. clamping diameter [mm]
13.7
max. low-clamping force [kN]
9.8
seal
FKM
seat check
pneumatic
connection for positive air pressure protection
with
Item no.
4318221K
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
centring function
without centring
body design
manifold-mounting type
min. clamping diameter [mm]
13.8
max. clamping diameter [mm]
14.7
max. low-clamping force [kN]
9.8
seal
FKM
seat check
pneumatic
connection for positive air pressure protection
with
Item no.
4318221L
type
bore clamp
functioning
double acting
max. operating pressure [bar]
250
hydraulic ports
O-ring manifold-mounting connection
centring function
without centring
body design
manifold-mounting type
min. clamping diameter [mm]
14.8
max. clamping diameter [mm]
15.7
max. low-clamping force [kN]
9.8
seal
FKM
seat check
pneumatic
connection for positive air pressure protection
with
Accessories (18)
Article available on request
On request, we will check whether the article is still available
Item no. CAD data Description
Item no.
0431704D
CAD data
/
Description
Clamping set for bore clamps size 1, Ø 9.8 - 10.2 mm for bore clamp 4318-1X0D as per data sheet B1.4841
Item no.
0431704E
CAD data
/
Description
Clamping set for bore clamps size 1, Ø 10.3 - 11.2 mm for bore clamp 4318-1X0E as per data sheet B1.4841
Item no.
2010911
CAD data
/
Description
Screw tools for threaded bushing for bore clamps size 1 as per data sheet B1.4841
Item no.
2010912
CAD data
/
Description
Screw tools for threaded bushing for bore clamps size 2 as per data sheet B1.4841
Item no.
3000274
CAD data
/
Description
O-ring 3.68 x 1.78 mm - FKM as per data sheet B1.4842
Item no.
3000342
CAD data
Description
O-ring 7 x 1.5 mm, NBR as per data sheet B1.5091
Item no.
3000876
CAD data
/
Description
O-ring 3.68 x 1.78 mm - NBR as per data sheet B1.4842
Item no.
3001077
CAD data
Description
O-ring 7 x 1.5 mm, FKM as per data sheet B1.5091
Application examples
Application example 1

Machining of a plate from 5 sides on an indexing bridge

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Please note: Our CAD data are generally simplified data and primarily reflect the outer contour and connections of the product (see also Terms of use). Please always refer to the relevant catalogue sheet for the exact dimensions with tolerances, in particular the information on mounting holes or attachments such as special clamps.