• Standard composite recirculation inserts
• Optional steel recirculation inserts
• Standard lead precision G5; optional lead precision G3 or G1
• Lubrication hole for grease nipple or for SKF SYSTEM 24 automatic lubrication kit
• Optional surface coating on shaft and nut
• Optional wipers
• Optional support bearings
• Precision ground nut well suited for positioning screws
• Optional steel recirculation inserts can act as a safety device for severe or vertical applications. Please contact SKF
• Backlash elimination by oversized balls on request (BKD designation)
• One-piece nut with internal preload for compactness and optimum rigidity (PKD version) 

If you need more information about this product, feel free to contact us, for productdetails please have a look into our website in german language - thank you ! 

Download:
https://www.ihb.ch/media/H5T1FTG2/SKF_www.ihb.ch_e_CAT_Linearmotion_comp.pdf
Further downloads, documentation available on request
Source: SKF EWELLIX: