*mydirectindustry

Catalogs
RINGSPANN
BKDI series

BKDI series

Product catalog summary

Overview: The document provides technical specifications and operational guidelines for the Taper Collet Centre Mandrel BKDI, a clamping device used in manufacturing for securing components with diameters ranging from 11.9 mm to 132 mm. It highlights the device's features, clamping principle, configuration, and ordering instructions.

Features:

Clamping diameters from 11.9 mm to 132 mm.
High true running accuracy of ≤ 0.01 mm.
Permissible component tolerance up to IT15.
Suitable for thin-walled or solid components.
Designed for hand clamping with a pull-back mechanism against an external backstop ring provided by the customer.

Clamping Principle: The Taper Collet is pushed against the centre mandrel body, expanding radially over the cone of the base body. This action centers the component, presses it against the backstop, and aligns it flush. The cylindrical form of the component bore in the clamping area must be smaller than the tolerance class IT7.

Configuration: The Taper Collet Centre Mandrel consists of a centre mandrel body and a Taper Collet with a clamping nut. It is mounted between centring tips and activated by turning the clamping nut.

Technical Specifications:

Axial activating force, radial clamping force, and axial pull-back force are key parameters.
Various sizes (BKDI 6 to BKDI 54) with specific clamping ranges and dimensions are detailed in the table.

Ordering Instructions: When ordering, specify the size of the Clamping Fixture and the clamping range of the requested Taper Collet. Example: Size BKDI 12 with a clamping range of 23.70 - 24.90 mm should be ordered as BKDI 12-23.70-24.90.

Insertion Depth: The minimum insertion depth is calculated using the formula: Lemin. = K + Lf + 4 mm (Sl min.), where Lf is the component chamfer length and K is a dimension from the table.

Additional Notes: The document includes detailed tables with dimensions and specifications for each BKDI size, emphasizing the importance of adhering to standard clamping ranges and torque specifications.

Catalog excerpts

Taper Collet Centre Mandrel BKDI Features • For clamping diameters from 11,9 mm to 132 mm • High true running accuracy ≤ 0,01 mm • Permissible component tolerance up to IT15 • Pull-back against external backstop ring by the customer • For thin-walled or solid components • For hand clamping Configuration The Taper Collet Centre Mandrel consists of a centre mandrel body and a Taper Collet with a clamping nut. The Taper Collet Centre Mandrel is mounted between the centring tips. The Taper Collet is activated by turning the clamping nut. Centre mandrel body Backstop ring (by customer) Taper Collet with clamping nut Clamping principle For clamping, the Taper Collet is pushed against the centre mandrel body and radially expands over the cone of basebody. The component is centred, pressed against the backstop and aligned flush. The cylindrical form of the component bore in the clamping area has to be smaller than the tolerance class IT7, independent of the component bore tolerance. Key: Axial activating force Radial clamping force Axial pull-back forc

Open the catalog to page 1

Taper Collet Centre Mandrel BKDI Backstop ring (by customer) Please note Clamping range Maximum diameter change* Tightening torque** 1) Please note the standard clamping ranges according to the tables on the next pages „Clamping Elements Taper Collets BMD“. * of the clamping diameter of the Clamping Element. ** for clamping with pull-back action. Insertion depth Please indicate the size of the Clamping Fixture and the clamping range of the requested Taper Collet, in your order: The minimum insertion depth Lemin. is derived according to the following formula from the component chamfer length Lf...

Open the catalog to page 2

BKDI series

BKDI series

Catalog excerpts

All RINGSPANN catalogs and technical brochures

Archived catalogs