Jacobs® Drill Chucks

Ball Bearing Super Chucks         Plain Bearing Chucks     Stainless Steel Chucks

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Ball Bearing Super Chucks

Designed for close tolerance, production drilling on precision equipment

The Jacobs Ball Bearing Super Chuck is specifically engineered for heavy-duty, close tolerance production drilling. It is adaptable to a wide range of production drilling equipment, jig borers, milling machines, lathes and radials. Utilizing a ball thrust bearing to reduce friction in the chuck closing mechanism, it permits the application of more gripping force on drill shanks to maximize drilling torque under the most demanding machining conditions.

Features



Ball Bearing Super Chucks
Part # Model # Capacity Range Mount
Jacobs
Key
No.
Minimum Maximum
in mm in mm
JAC.8-1/2N 8-1/2N 0 * 0 * 0.250 6.4 2JT K30
JAC.11N 11N 0 * 0 * 0.375 10 2JT K32
JAC.14N 14N 0 * 0 * 0.500 13 3JT K3
JAC.16N 16N 0.125 3 0.625 16 3JT K4
JAC.18N 18N 0.125 3 0.750 19 4JT K4
JAC.20N 20N 0.375 10 1.00 25.4 5JT K5
* The 0 minimum capacity will hold a No.70 ( .028"/.711 mm) drill.

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Plain Bearing Chucks

The O.E.M. standard for accuracy and durability on all types of industrial power and machine tools

The Jacobs Plain Bearing Chuck is the world's most widely used for medium or heavy-duty portable, bench or floor mounted power tools. This industrial quality chuck, with fully hardened and ground working components, offers exceptionally high accuracy, gripping power and durability. Both heavy and medium duty models are available in a wide range of capacities for use on threaded mounts and taper mounted spindles

Features

Taper Mounted Heavy Duty Models
Part # Model # Capacity Range Mount
Jacobs
Key
No.
Minimum Maximum
in mm in mm
JAC.3A 3A 0.125 3 0.625 16 3JT K3
JAC.3KD 3KD (2) 0.125 3 0.625 16 3JT K3
JAC.3PD 3PD (3) 0.125 3 0.625 16 3JT K3
               
JAC.34-02 34-02 0 (1) 0 0.500 13 2JT K3
JAC.34-06 34-06 0 (1) 0 0.500 13 6JT K3
JAC.34-33 34-33 0 (1) 0 0.500 13 33JT K3
JAC.34-33C 34-33C (4) 0 (1) 0 0.500 13 33JT K3C
               
JAC.36 36 0.180 5 0.800 20.3 3JT K4
JAC.36KD 36KD (2) 0.180 5 0.800 20.3 3JT K4
JAC.36PD 36PD (3) 0.180 5 0.800 20.3 3JT K4
(1) Minimum capacity will hold a No.70 ( .028"/.711 mm) drill.
(2) Equipped with positive drive slot.
(3) Equipped with pin-type positive drive.
(4) Equipped with locking collar.



Taper Mounted Medium Duty Models
Part # Model # Capacity Range Mount
Jacobs
Key
No.
Minimum Maximum
in mm in mm
JAC.0 0 0 (1) 0 0.156 4 0JT K0
JAC.1A 1A 0 (1) 0 0.250 6.5 1JT K1
JAC.2A 2A 0 (1) 0 0.375 10 2JT K2
JAC.31-01 31-01 0 (1) 0 0.375 10 1JT K30
JAC.31-02 31-02 0 (1) 0 0.375 10 2JT K30
               
JAC.33 33 0.08 2 0.500 13 33JT K32
JAC.3326A 3326A(4) 0.08 2 0.500 13 33JT K32
JAC.33KD 33KD (3) 0.08 2 0.500 13 33JT K32
(1) Minimum capacity will hold a No.70 ( .028"/.711 mm) drill.
(2) Equipped with positive drive slot.
(3) Equipped with pin-type positive drive.
(4) Equipped with locking collar.

 

link to arbor page



Thread Mounted Heavy Duty Models
Part # Model # Capacity Range Mount Thread
Jacobs
Key
No.
Minimum Maximum
in mm in mm
JAC.3B-5/8 3B 5/8 0.125 3 0.625 16 5/8-16 K3
JAC.7BA-3/8 7BA 3/8 0 (1) 0 0.250 6.5 3/8-24 K7
JAC.32BA-1/2 32BA 1/2 0 (1) 0 0.375 10 1/2-20 K32
               
JAC.35B-1/2 35B 1/2 0.156 4 0.625 16 1/2-20 K3
JAC.36B-3/4 36B 3/4 0.188 5 0.800 20.3 3/4-16 K4
JAC.36B-5/8 36B 5/8 0.188 5 0.800 20.3 5/8-16 K4
(1) Minimum capacity will hold a No.70 ( .028"/.711 mm) drill.



Thread Mounted Medium Duty Models
Part # Model # Capacity Range Mount Thread
Jacobs
Key
No.
Minimum Maximum
in mm in mm
JAC.0B-5/16 0B 5/16 0 (2) 0 0.156 4 5/16-24 K0
JAC.1B-3/8 1B 3/8 0 (1) 0 0.250 6.5 3/8-24 K1
JAC.2BA-3/8 2BA 3/8 0 (1) 0 0.375 10 3/8-24 K2
               
JAC.31BA-1/2 31BA 1/2 0 (1) 0 0.375 10 1/2-20 K30
JAC.31BA-3/8-S 31BA 3/8-S 0 (1) 0 0.375 10 3/8-24 K30
JAC.31BA-3/8-F 31BA 3/8-F 0 (1) 0 0.375 10 3/8-24 K30
               
JAC.33BA-1/2 33BA 1/2 0.08 2 0.500 13 1/2-20 K32
JAC.33BA-3/8 33BA 3/8 0.08 2 0.500 13 3/8-24 K32
JAC.33BA-5/8 33BA 5/8-16 0.08 2 0.500 13 5/8-16 K32
(1) Minimum capacity will hold a No.70 ( .028"/.711 mm) drill.
(2) Model 0B 5/16 has a minimum capacity of a No. 80 (.0135in/.344mm) drill



Stainless steel chucks


Stainless Steel Chucks
Part # Model # Capacity Range Mount
Jacobs
Key
No.
 
Minimum Maximum
in mm in mm
JAC.0M 0BM 0 0 0.156 4 0JT K0M
JAC.0BM-5/16 0BM 5/16 0 0 0.156 4 5/16-24 K0M
JAC.1M 1M 0 0 0.250 6 1JT K1M
JAC.1BM-5/16 1BM 5/16 0 0 0.250 6 5/16-24 K1M
JAC.1BM-3/8 1BM 3/8 0 0 0.250 6 3/8-24 K1M




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