Grinding Spindles — Centerless, ID, OD & Surface Grinder

Grinder spindle diameter varies by machine type and model. On Clausing CSG Series surface grinders, grinding wheel diameters range from 8" to 14", with wheel bores from 1.25" to 5" and widths from 0.5" to 2". The spindle itself is supported by preloaded precision angular contact ball bearings and NU/NN type roller bearings, engineered for rigidity under heavy-duty grinding loads.

Grinding spindles are available for surface, centerless, ID (internal diameter), and OD (external diameter) grinding applications. Each spindle type is engineered for specific workpiece geometries and tolerances. Surface grinding spindles, such as those in the Clausing CSG Series, are horizontal-orientation, direct-coupled designs running at 1750 to 3450 rpm for flat surface finishing.

High-quality surface grinders like the Clausing CSG Series use preloaded precision angular contact ball bearings combined with NU or NN type roller bearings. This combination provides excellent radial and axial load handling, reduces deflection under grinding forces, and ensures long-term spindle accuracy and durability in demanding production environments.

Spindle motor horsepower for surface grinders depends on table size and application intensity. The Clausing CSG Series ranges from 2 hp for smaller 6" x 18" models to 7.5 hp for large 20" x 40" configurations. The CSG3A1224 specifically uses a 5 hp spindle motor, suitable for heavy-duty precision grinding on 12" x 24" workpieces.

Clausing CSG Series surface grinders accommodate grinding wheels ranging from 8" to 14" in diameter, 0.5" to 2" in width, and 1.25" to 5" bore size depending on the model. The CSG3A1224, for example, uses a standard 12" diameter wheel with a 1.25" width and 3" bore, suitable for general-purpose and precision surface grinding.

Yes. The Clausing CSG Series includes both manual-hydraulic and fully automatic CNC models. Manual models offer operator-controlled hydraulic longitudinal movement and handwheel crossfeed, while automatic models feature a Delta PLC controller with a 7.2" color touchscreen, programmable head positioning, and servo motor-driven crossfeed for repeatable, unattended grinding operations.