PBC Linear NIL16 018.000 Linear Shaft, Solid, 1 in Dia, 18 in Lg, Carbon Steel, Polished G1638917 Lined Bearings Surface Roughness 8 12 Lined Bearings Surface Roughness 8 12 RMS Product Type Linear Shaft Standards ISO Shaft Drilling Undrilled Shaft Material Finish Polished System of Measurement Metric Shaft Material Grade 440 Shaft Material Stainless Steel End Type Plain Ends Series NIMSS Roughness 8 12 uin RMS Shaft Type Solid Shaft Tolerance Class M Core Type Solid Surface Hardness Minimum 50 HRC Weight Per Meter 2 firmness 9 PSI at 25% deflection Lined Bearings Type Solid Shaft System of Measurement Inch Surface Roughness 8 uin End Type Plain Ends Shaft Type Solid Shaft Tolerance Class L Series NIL Operating Temperature Maximum 400 Degrees F Roughness 8 12 uin RMS Core Type Solid Operating Temperature Minimum 0 Degrees F Surface Hardness Minimum 60 HRC Weight Per Inch 0 Linear Shaft