R-8 (BRIDGEPORT)

Product catalog summary

Overview: This document provides technical specifications and descriptions for various R-8 Bridgeport tool holders and accessories, including universal arbors, collet chucks, drill chuck arbors, and Weldon holders. It includes details on materials, dimensions, and tolerances.

Specifications:

Material: Case-hardening alloy steel, case-hardened and tempered with a minimum core strength of 880 N/mm² and surface hardness of Rc 57-60.
Maximum Circular Deviation: For R-8 taper and D1, the deviation should not exceed 0.008 mm.

Product Descriptions:

Universal Arbors: Designed for milling cutters with longitudinal or tenon drive (DIN 138).
Collet Chucks (ER Type): Conform to DIN 6499, suitable for cylindrical straight shank tools (DIN 1835-A).
Drill Chuck Arbors: Adaptors for drill chucks with DIN 238 or JACOBS fittings.
Direct Connection Collets: For tanged Morse taper tools (DIN 228-B), with a maximum deviation of 0.008 mm.
Reducing Adapters: For Morse taper tools, maintaining a maximum deviation of 0.008 mm.
Weldon Holders: For end mills with shank DIN 1835-B and DIN 6535 HB, with tightened tolerances for precision.

Key Measurements:

Various dimensions and lengths are provided for each tool type, ensuring compatibility with specific tool standards.
Detailed tables list product codes, dimensions, and optional accessories.

Accessories: Additional accessories and optional components are referenced, with further details available on specified pages.

Recommendations: For optimal performance, adhere to specified tolerances and use recommended accessories.