The bolts are made from high-strength screw steel, heat-treated, and standard is oxid black finish for corrosion protection. Zinc and Zinc-Nickel finish is also available. The bolts material is also available with stainless steel.
They are available with a concentric and eccentric collar; designation LFZ or LFE. Depending on their intended purpose.
They are supplied with a washer, nut, drive fit lubrication nipple and sealing cap, see table delivered condition. The eccentric designs LFE and LFE..- 1 allow the track roller guidance systems to be set clearance-free.

Design variant

• LFZ Concentric bolt with washer
• LFE Eccentric bolt with washer and nut
• LFZ..-A1 Concentric and eccentric bolt with washer and nut, driving fit lubrication nipple and sealing cap
• LFE..-A1 Concentric and eccentric bolt with washer and nut, driving fit lubrication nipple and sealing cap

Track Roller With Gothic Arch Groove Profile Outer Ring