Specifications:
The document details two series of roller rails: RU-HL-XL and RU-SPHL-XL. Each series includes rollers made of polypropylene with plain bearings, each having a load capacity of 15 kg per roller. The RU-HL-XL series includes rollers with pitches of 33 mm, 50 mm, and 66 mm, while the RU-SPHL-XL series includes pitches of 50 mm, 66 mm, and 83 mm.

Procedures:
When ordering, specify the desired rail/track type, roller type, pitch, and length. An example order format is provided: RU-50-VA-XL/2x1,500.

Recommendations:
To ensure smooth conveyance and prevent tipping, the conveyed goods should rest on at least three rollers. The axle gap or pitch is the distance from the center of one roller to the next in the direction of conveyance.

Variants:
The XL roller rail variants include options with stainless steel axis and profile (...-av) and small rollers in black and highly conductive (...-ndu and ...-nHl).

Additional Information:
Suitable castors can be found on page 663. The document emphasizes the importance of high conductivity in certain roller variants.