Industrial Norms and Standards
Index of Technical References
NIST - (National Institute of Standards and Technology)
Jacobs Chuck Manufacturing Co.
ASTM International - (the American Society for Testing and Materials)
May be those links can help you when looking for some dimensions or material qualities.
Victor Machinery Exchange, Inc.
Hardinge Inc. - A lot about collets, chucks, etc
DIN Standard - (German Deutsche Institut für Normung)
International Organization for Standardization