Aluminum Spindle w/ Pressed Bearing 72852702AR RM1189 4" Body 6" OD 1/2" Shaft

Aluminum Spindle w/ Pressed Bearing 72852702AR RM1189 4" Body 6" OD 1/2" Shaft

This is a machined aluminum spindle assembly carrying part numbers 72852702AR and RM1189. The assembly features a pressed bearing at the center hub and mounts via a multi-bolt circular flange. It is built around a 1/2" stainless steel shaft and is suited for rotary or indexing applications requiring a rigid, flanged spindle body.

Specifications & What's Included

• Part Numbers: 72852702AR / RM1189
• Body Outer Diameter: 4"
• Outer Lip / Flange OD: 6"
• Bolt Hole Center-to-Center: 5"
• Shaft Diameter: 1/2"
• Shaft Material: Stainless Steel
• Body Material: Aluminum
• Bearing Type: Pressed bearing (center hub)
• Mounting: Multi-bolt circular flange pattern
• Spindle assembly only — no additional accessories included

Applications

Flanged aluminum spindle assemblies like this one are commonly used in industrial machinery, automated equipment, and custom fixtures where a rotating shaft must be precisely supported by a bearing and secured via a bolt-pattern flange. Typical applications include rotary tables, indexing fixtures, conveyor mechanisms, and purpose-built machine tool attachments. The stainless steel shaft provides corrosion resistance in environments where lubrication or mild chemical exposure is present. The pressed bearing design simplifies installation and allows the spindle to be dropped into a housing without a separate bearing press step at the machine. This style of assembly is frequently found in semiconductor handling equipment, photographic or optical disc manufacturing fixtures, and general industrial automation where a compact, low-profile rotating hub is needed.