PBC Linear SPB 12 OPN Single Roller Pillow Block, For 3 4 in Round Shaft, 600 lbf Dynamic Load Rating G7558934 Corrosion Resistant Country of Origin Corrosion Resistant Country of Origin United States DFARS Compliance Specialty Metals Compliant (252 Office Chair Style Managerial Chair Arm Style Adjustable Arms Seat Material Leather Seat Color Black Back Material Leather Back Color Black Backrest Built in Lumbar Support Caster Type Dual Wheel Base Color Black Base Material Nylon Color Black Item Desk Chair Material Leather Weight Capacity 250 lb Frame Material Nylon Cushion Thickness 3 1 2 in Series Space Seating Features Air Grid(R) Back Shaft Center to Mount Hole Width 1 6 lb For Shaft Type Round Minimum Temperature 250 Degrees F Lubricant Material Grease Lubrication Maximum Temperature 392 Degrees F Country of Origin United States