Specifications:
The document provides technical specifications for the SMW SGSBB-3 series chucks, specifically models 405 and 515. These chucks are designed for self-centering with a steel body and feature a large through hole. They are compatible with DIN 6350 mounting standards and can be mounted from both the front and rear.

Dimensions:
The dimensions for the two models are detailed, including various diameters and lengths such as A, B, B1, C(H6), D, E, F, G, G1, J, K, L, L1, M, M1, N, N1, Q, X(h6), and Z. Specific measurements are provided for each dimension.

Performance Parameters:
The maximum speed for the chucks is 800 RPM for model 405 and 650 RPM for model 515. The maximum torque is 280 N.m and 360 N.m, respectively. The weight with jaws is 73 Kg for model 405 and 119 Kg for model 515. The moment of inertia is 1.5 Kgm2 and 3.9 Kgm2, respectively.

Ordering Information:
The document includes ordering codes for rear and frontal mounting options, with specific codes provided for each model.

Clamping Diameters:
The clamping diameters for the SGSBB-3 models are listed, with specific ranges for each diameter (Ø A, Ø B, Ø C, Ø D, Ø E).

Standard Equipment:
Each chuck comes with a set of 3 master jaws, 3 soft top jaws, and 3 reversible jaws. Additional parts such as the scroll, pinion, norm key, and grease are also included.

Additional Notes:
The document notes that technical changes are subject to occur, indicating potential updates or modifications to the specifications.