Link-Belt SAF535 Split Pillow Block Unit 70mm Bore

The Link-Belt SAF535 split pillow block unit is a self-aligning roller bearing housed in a split cast iron or steel housing that allows complete bearing and shaft installation and removal without disturbing connected machinery, piping, or drive components. The SAF prefix denotes the split housing design — upper and lower housing halves are bolted together around the bearing, and unbolting the upper half exposes the bearing for inspection, re-greasing, or replacement with the shaft still in place. At 70 mm bore, the SAF535 fits standard 70 mm shafts commonly found on medium-duty fan, conveyor, and pump shaft applications in HVAC, industrial ventilation, and materials handling systems.

Link-Belt, part of the Rexnord portfolio, is one of the oldest bearing brands in North America and has been a trusted specification for split housed unit bearings in industrial and HVAC fan applications for over a century. The SAF535 uses a spherical roller bearing insert that provides the self-aligning capability required in applications where shaft deflection, thermal growth, or installation inaccuracy creates angular misalignment between bearing seats. The housing is machined to tight tolerances for bearing outer race fit, and the split parting line is precision-ground to ensure concentricity when the housing halves are assembled — preventing oval bore conditions that would lead to premature bearing damage.

In Saudi Arabia, Link-Belt SAF series split pillow blocks are widely used in HVAC air handling unit fan shaft bearings in commercial buildings, hospitals, airports, and industrial facilities across Riyadh, Jeddah, and Dammam. The split housing design is the standard bearing specification for Saudi HVAC contractors and mechanical engineers because it permits bearing replacement during maintenance shutdowns without disconnecting fan impellers, drive belts, or shaft couplings — a major time saving in occupied buildings where maintenance windows are limited. Saudi cement and minerals plants use SAF series bearings on conveyor drive and tail shaft positions where the split housing allows inspection without full conveyor disassembly.

Razz Middle East supplies Link-Belt SAF series split pillow block units for Saudi Arabia's construction and industrial maintenance markets. We stock SAF535 at 70 mm bore and cover the full SAF range from SAF205 through SAF640 for fan, conveyor, and process equipment shaft bearing applications. Our technical team can advise on bearing selection, housing code matching, seal specification, and lube intervals for specific Saudi application conditions.