Plumber blocks are the most commonly used blocks in manufacturing, mining, and construction industries for mounting self-aligning ball or spherical roller bearings with adapter sleeves or cylindrical bores. They are designed for use on conveyors, dryers, road building equipment, run-out tables, fans, crushers, hammer mills, and many other high-precision, heavy duty applications. Plummer block offer high load carrying capacities for radial or combination radial and thrust loads. They are also convenient for assembly and disassembly. The housing material can be cast or ductile iron, and come as either expansion or non-expansion. The main components consist of a 2-bolt or 4-bolt housing, an adapter sleeve assembly, a triple seal ring, and a locating ring.

Housing No. (1):
SN505, SN506, SN507, SN508, SN509, SN510, SN511, SN512,
SN513, SN515, SN516, SN517, SN518, SN519, SN520, SN522,
SN524, SN526, SN528, SN530, SN532
Housing No. (2):
SN605, SN606, SN607, SN608, SN609, SN610, SN611, SN612,
SN613, SN615, SN616, SN617, SN618, SN619, SN620, SN622,
SN624, SN626, SN628, SN630, SN632
Housing No. (3):
SNU505, SNU506, SNU507, SNU508, SNU509, SNU510, SNU511,
SNU512, SNU513, SNU515, SNU516, SNU517, SNU518, SNU519,
SNU520, SNU522, SNU524, SNU526, SNU528, SNU530, SNU532