Bolts
Features
The bolts, which are made from high strength screw steel, 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.
The eccentric designs LFE and LFE..-A1 allow the track roller guidance systems to be set clearance-free.
Delivered condition
Designation and suffix | Scope of delivery | Design |
|---|---|---|
LFZ | Concentric bolt with washer | Standard |
LFE | Eccentric bolt with washer and nut | Standard |
LFZ..-A1 | Concentric or eccentric bolt with washer and nut, drive fit lubrication nipple and sealing cap | Standard |
NIP-A2 | Drive fit lubrication nipple | Accessory |
VD2 | Sealing cap | Accessory |
Lubrication
Bolts LFZ..-A1 and LFE..-A1 (from size 20) have a lubrication hole. Track rollers of outside diameter ≧ 52 mm can be lubricated via this hole. A lubrication nipple NIP-A2 can be pressed into the hole, ➤ Figure. If the hole will not be used for relubrication, it must be closed off using the sealing cap VD2.
Drive fit lubrication nipple and sealing cap
Corrosion-resistant design
In this case, the bolts, washers and nuts are made from corrosion-resistant steel. These designs have the suffix RB.