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Catalogue Technical Specification
ISO Fundamental Tolerances
Plastic Specification

CAD Data

3D CAD Files
DIN319 KU Type L 3D CAD Model
DIN319 KT Type M 3D CAD Model


DIN319 Ball Knob, Plastic, Press On Type



DIN319: Ball Knob - Material: KT
Type: M - with Tapered Bore


DIN319: Ball Knob - Material: KU
Type: L - with Tolerance Ring

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Type L - with tolerance ring

Type M - with tapered bore

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Product Description 

DIN319 Ball Knob, Plastic, Press On Type

Ball knobs DIN 319 type L and M are used on shafts without a thread. They have a comfortable, modern design, ideal for use on crank handles, handwheels & levers.

During mounting, gentle blows with a soft hammer are sufficient to drive the knob into place, the shaft end should be slightly rounded or chamfered (30°).

Before the assembly of type knobs the tolerance ring is to be inserted into the drilling. When assembling, ensure that the button is perpendicular and / or axially parallel to prevent breakage of the knob.

Type M ball knobs are a cheaper option, however, the pulling off force is less predictable.


Type L - Plastic KU Duroplast (Phenolic PF), black, shiny finish. Tolerance ring - spring steel.

Type M - Plastic KT Technopolymer (Polyamide PA), shock resistant, black, matt finish.

On Request

Red version

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DIN319 Ball Knobs Press On Type plastic DIN 319

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