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BP-D, BP-M

Product catalog summary

Overview:
This document provides technical specifications and guidelines for SMW-AUTOBLOK high precision power chucks, specifically models BP-D and BP-M, with diameters ranging from 220 mm to 320 mm. These chucks are designed for use in standard lathes and are characterized by their large through-hole and low maintenance requirements due to their fully sealed design.

Specifications:

Available in two serration types: INCH (1/16" x 90°) and METRIC (1.5 mm x 60°).
Features include constant gripping force with permanent grease lubrication, case-hardened chuck body and internal parts, and compatibility with standard machines.
Technical data includes maximum actuating force, gripping force, speed, weight, and moment of inertia.

Procedures and Safety Advice:

When using taller or heavier jaws, or clamping on a larger diameter, it is advised to reduce draw pull and rotating speed to prevent damage.
Gripping force diagrams are provided to illustrate the relationship between speed (r.p.m.) and gripping force (kN) for 3 jaw chucks.

Applications and Benefits:

Suitable for general use on standard lathes, especially in extreme environments due to minimal maintenance needs.
Ideal for dry machining of castings and forgings or when high-pressure coolant is used.
Extended lifespan and high precision due to reduced wear.

Ordering Information:

Standard equipment includes a 3 jaw chuck, T-nuts and bolts, or soft top jaws.
Ordering examples are provided for different configurations and mounting options.

Technical Features:

Proofline® chucks are fully sealed, ensuring low maintenance.
Large through-hole design enhances compatibility with various machines.

Additional Notes:

Subject to technical changes; for more detailed information, customer service should be contacted.

Catalog excerpts

Application/customer benefits • General use on standard lathes due to the through-hole, but with advantage of minimum maintenance and use also in extreme environments • Longer life at high precision due to less wear • Fully sealed, ideal for dry machining of castings and forgings or if high pressure coolant is used BP-D: Master jaws with INCH SERRATION (1/16"x 90°) BP-M: Master jaws with METRIC SERRATION (1.5 mm x 60°) (suitable for japanese jaws) Technical features • Constant gripping force with permanent grease lubrication • Large through hole compatible with the standard machines • Chuck body and internal parts case hardened • Proofline®chucks = fully sealed - low maintenance seale maint Standard equipment 3 jaw chuck 1 set T-nuts and bolts 1 set soft top jaws Mounting bolts Ordering example 3 jaw chuck BP-D 220 / Z170 or 3 jaw chuck BP-M 220 / A6 Actual gripping force diagrams The data in the diagrams refer to 3 jaw chucks, newly maintained according to their service manuals using SMW-AUTOBLOK K67 grease. The static and dynamic gripping forces have been measured using standard soft top jaws, placed in a position not exceeding the outer diameter of the chuck. A Safety advice / danger of damage: When using taller / heavier jaws and / or clamping on a bigger diameter reduce draw pull / rotating speed accordingly. SMW-AUTOBLOK Type * For internal clamping reduce the draw pull by 30%

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