Precision Steel Bearings Catalog - Thomson - #19

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84 www.danahermotion.com Inch – Precision Steel Ball Bushing Bearings Precision Steel Ball Bushing Bearing Pillow Block (Open Type) for Continuously Supported Applications Precision Steel Ball Bushing Bearing Pillow Blocks (Open Type, seal at both ends) and 60 Case LinearRace (Dim. in inches) Part Number (3) Nominal Diameter H ±.005 H1 60 Case LinearRace Minimum Depth of Hardness 60 Case Solid LinearRace Mass lb/in 60 Case LinearRace Mounting Holes Precision Steel Ball Bushing Pillow Block 60 Case LinearRace X Y N1 PBO-8-OPN 1/2 L PD .500 .875 1.50 .04 .06 4 2 #6-32 PBO-12-OPN 3/4 L PD .750 1.125 2.00 .06 .13 6 3 #10-32 PBO-16-OPN 1 L PD 1.000 1.375 2.38 .08 .22 6 3 1/4-20 PBO-20-OPN 1 1/4 L PD 1.250 1.750 3.06 .08 .35 6 3 5/16-18 PBO-24-OPN 1 1/2 L PD 1.500 2.000 3.50 .08 .50 8 4 3/8-16 PBO-32-OPN 2 L PD 2.000 2.500 4.50 .10 .89 8 4 1/2-13 Part Number (3) 60 Case LinearRace Diameter d A B E ±.010 E1 ±.010 E2 min. J á deg M N Pillow Block Weight lb Dynamic(T) Load Capacity lbf Precision Steel Ball Bushing Pillow Block Hole Bolt PBO-8-OPN .4995/.4990 2.00 1.69 1.000 1.500 .37 .25 50 1.50 .19 #8 .4 60 PBO-12-OPN .7495/.7490 2.75 2.06 1.375 2.000 .43 .31 60 2.00 .22 #10 1.0 140 PBO-16-OPN .9995/.9990 3.25 2.88 1.500 2.500 .56 .38 60 2.25 .28 1/4 1.8 240 PBO-20-OPN 1.2495/1.2490 4.00 3.63 1.875 3.000 .67 .44 50 2.75 .34 5/16 3.8 400 PBO-24-OPN 1.4994/1.4989 4.75 4.00 2.000 3.5000 .81 .50 50 3.00 .34 5/16 4.8 600 PBO-32-OPN 1.9994/1.9987 6.00 5.00 2.500 4.500 1.00 .63 50 3.50 .41 3/8 8.5 860 (1) The Dynamic Load Capacity is based on a rated travel life of 2 million inches. The actual Dynamic Load Capacity can be affected by the orientation of the bearing or the direction of the applied load. For dynamic load correction factors see polar graphs below. (3) For part number description and specifications see page 81. Note: Precision Steel Ball Bushing Bearings are available in corrosion resistant stainless steel in diameters up to 1 inch. Dynamic load ratings are reduced by 30% when using stainless steel Ball Bushing Bearings. For additional technical information, see the Engineering section beginning on page 245. X N1 Y d A E1 H1 J Adjusting Screw H M B Material—Malleable Iron Engineered Plastic Seal Cover at both ends E2 a E N Sizes .500 thru 1.00 available in Corrosion resistant Stainless Steel.