Features and benefits
SNL plummer block housings in the 2, 3, 5 and 6 series have the following features and benefits:
The housing base is reinforced with ribs and has extra material surrounding the holes for the attachment bolts (fig. 1). The attachment bolts can be preloaded to locate the housing without deforming the housings base or bore.
Good heat dissipation
Additional ribs in the housing base (fig. 2) increases the contact area between the housing base and the support surface to improve the heat flow from the bearing outer ring to the support surface.
Grease guiding system
For more efficient relubrication from the side, SNL housings from sizes 216 and 516-613 upwards have an integrated flange that guides grease from the grease fitting directly to the bearing (fig. 3).
Caps and bases individually marked
The housing cap and base are matched during manufacture and are not interchangeable with the caps and bases of other housings. To prevent any mismatches, a unique serial number is marked on both the housing cap and the base (fig. 4).
Dimples to locate accessories
Dimples cast into the housing cap indicate where grease fittings and condition monitoring sensors can be mounted for maximum effectiveness (fig. 5).
To simplify mounting and make alignment more accurate, lines indicating the centre of the bearing seat and housing bore axis are cast into the housing base. Dimples indicate the position for dowel pins (fig. 6). Mounting instructions are supplied with each seal pack.
Housings from size 524-620 and above are supplied with an eye bolt on the cap for safe and easy handling.