Specifications:
The document details the specifications for chrome-plated piston rods, Series BAC, made from Ck45 (1.1191) steel. The rods have a surface roughness of Ra 0.15 and are available in various diameters ranging from 6 mm to 80 mm. Each rod has a length of 6000 mm with a tolerance of ISO f7.

Key Parameters:

• Chrome layer thickness: Minimum 20 µm
• Chrome layer hardness: 800 HV
• Roundness: Half of the diameter tolerance
• Length tolerance: +500 / -100 mm

Weight and Tolerance:
The weight of the rods varies with diameter, starting from 0.23 kg/m for 6 mm diameter to 39.5 kg/m for 80 mm diameter. The diameter tolerances are specified in micrometers, with values ranging from -10 / -22 µm for smaller diameters to -30 / -60 µm for larger diameters.

Additional Information:
Special tolerances and diameters can be requested. The document also provides contact information for PreCom Precision Components GmbH, located in Germany.