SEARCH WHERE TO PURCHASE CAREERS ACCOUNT Thomson/ Products/ Flanged Bearings Thomson™ Nyliner™ Flanged Bearings Standard Standard With Anti-Rotation Key Plastic flange bearings are designed to support heavy loads when the shaft axis is perpendicular to the application's mounting surface. Thomson Nyliner plastic flange bearings offer more secure retention for radial and axial loads than a standard sleeve bearing. The thin wall construction of these bearings ensures they hold up in applications with high speed and low coefficient of friction. Similar to straight sleeve bearings, our plastic flange bearings accommodate changes in temperature and humidity with a standard axial compensation gap. Our flange mount bearings are also designed with anti-rotation keys. This feature eliminates both linear and rotational motion and lack of fluctuation. Select nylon bearings are available in Thomson Nyliner high-performance polymer bearing material. Clearances The minimum diametral shaft to bearing clearance normally recommended for flange bearings is .001˝ for bearing I.D. sizes from 1.000˝ to 1.250˝; and .002˝ for I.D. sizes from 1.250˝ to 1.500˝. These clearances are recommended to allow proper running clearance for trouble-free operation. Plastic bearings will expand slightly due to frictional heat and moisture absorption. The majority of this expansion is accommodated by the compensation gap. Changes in wall thickness are minimal due to the thin wall construction of Thomson Nyliner bearings. Standard Flanged Bearing Standard Flanged Bearing (Inches) Part Number Nominal Bearing Inner Diameter Bearing Inner Diameter Maximum Shaft Diameter Housing Bore Bearing Length "L" (+0, -1/64) Radius "R" Maximum Flange Diameter (± 1/64) Flange "t" (+.000,-.005) Inner Diameter Tolerance 3L3-F 3/16 0.1885 + .001 / – .000 0.1875 0.2340 3/16 0.010 5/16 0.025 4L4-F 1/4 0.2510 + .001 / – .000 0.2500 0.2965 1/4 0.010 13/32 0.025 5L5-F 5/16 0.3135 + .001 / – .000 0.3125 0.3745 5/16 0.015 1/2 0.030 5L7-F 5/16 0.3135 + .001 / – .000 0.3125 0.3745 5/16 0.015 1/2 0.030 5L10-F 5/16 0.3135 + .001 / – .000 0.3125 0.3745 5/16 0.015 1/2 0.030 6L6-F 3/8 0.3760 + .001 / – .000 0.3750 0.4370 3/8 0.015 19/32 0.030 6L11-F 3/8 0.3760 + .001 / – .000 0.3750 0.4370 11/16 0.015 19/32 0.030 7L7-F 7/16 0.4385 + .001 / – .000 0.4375 0.4995 7/16 0.015 21/32 0.030 8L31⁄2-F 1/2 0.5010 + .001 / – .000 0.5000 0.5620 1/2 0.015 3/4 0.030 8L51⁄2-F 1/2 0.5010 + .001 / – .000 0.5000 0.5620 1/2 0.015 3/4 0.030 8L8-F 1/2 0.5010 + .001 / – .000 0.5000 0.5620 1/2 0.015 3/4 0.030 8L12-F 1/2 0.5010 + .002 / – .000 0.5000 0.5620 1/2 0.015 3/4 0.031 10L51⁄2-F 5/8 0.6260 + .001 / – .000 0.6250 0.6870 5/8 0.015 15/16 0.030 10L7-F 5/8 0.6260 + .001 / – .000 0.6250 0.6870 5/8 0.015 15/16 0.030 10L10-F 5/8 0.6260 + .001 / – .000 0.6250 0.6870 5/8 0.015 15/16 0.030 10L14-F 5/8 0.6260 + .001 / – .000 0.6250 0.6870 5/8 0.015 15/16 0.030 10L18-F 5/8 0.6260 + .001 / – .000 0.6250 0.6870 5/8 0.015 15/16 0.030 12L12-F 3/4 0.7510 + .001 / – .000 0.7500 0.8120 3/4 0.015 1 1/8 0.030 12L18-F 3/4 0.7510 + .001 / – .000 0.7500 0.8120 3/4 0.015 1 1/8 0.030 14L71⁄2-F 7/8 0.8760 + .001 / – .000 0.8750 0.9370 7/8 0.015 1 5/16 0.030 14L14-F 7/8 0.8760 + .001 / – .000 0.8750 0.9370 7/8 0.015 1 5/16 0.030 16L16-F 1 1.0015 + .0015 / – .000 1.0000 1.0935 1 0.020 1 1/2 0.045 18L18-F 1 1/8 1.1265 + .0015 / – .000 1.1250 1.2185 1 1/8 0.020 1 11/16 0.045 20L20-F 1 1/4 1.2515 + .0015 / – .000 1.2500 1.3435 1 1/4 0.020 1 7/8 0.045 24L24-F 1 1/2 1.5020 + .002 / – .000 1.5000 1.6245 1 1/2 0.025 2 1/4 0.0600 Standard Flanged Bearing (Millimeters) Part Number Nominal Bearing Inner Diameter Bearing Inner Diameter Maximum Shaft Diameter Housing Bore Bearing Length "L" (+0, -.4) Radius "R" Maximum Flange Diameter (±4) Flange "t" (+0, -.13) 8000A 4 4.025 4 5.2 4 0.4 7 0.6 8001A 5 5.025 5 6.2 5 0.4 8 0.6 8002A 6 6.025 6 7.2 6 0.4 9.5 0.6 8003A 8 8.025 8 9.6 8 0.4 12 0.8 8004A 10 10.025 10 11.6 10 0.4 15 0.8 8005A 12 12.025 12 13.6 12 0.4 18 0.8 8006A 14 14.025 14 15.6 14 0.4 21 0.8 8007A 16 16.025 16 17.6 16 0.4 24 0.8 8008A 20 20.025 20 21.6 20 0.4 30 0.8 8009A 25 25.025 25 27.4 25 0.4 37.5 1.2 Standard Flanged Bearing With Anti-Rotation Key Part Number Nominal Bearing Inner Diameter Bearing Inner Diameter Maximum Shaft Diameter Housing Bore Bearing Length "L" (+0, -1/64) Radius Maximum Flange Diameter (± 1/64) Flange "t"(+.000,-.005) Anti-Rotation Key "w"(+0, -1/64) Anti-Rotation Key "l" (+0, -1/64) Inner Diameter Tolerance 3L3-FK 3/16 0.1885 + .001 / –.000 0.1875 0.2340 3/16 0.010 5/16 0.025 1/16 1/16 4L4-FK 1/4 0.2510 + .001 / –.000 0.2500 0.2965 1/4 0.010 13/32 0.025 1/16 1/16 5L5-FK 5/16 0.3135 + .001 / –.000 0.3125 0.3745 5/16 0.015 1/2 0.030 3/32 3/32 5L7-FK 5/16 0.3135 + .001 / –.000 0.3125 0.3745 5/16 0.015 1/2 0.030 3/32 3/32 5L10-FK 5/16 0.3135 + .001 / –.000 0.3125 0.3745 5/16 0.015 1/2 0.030 3/32 3/32 6L6-FK 3/8 0.3760 + .001 / –.000 0.3750 0.4370 3/8 0.015 19/32 0.030 3/32 3/32 6L11-FK 3/8 0.3760 + .001 / –.000 0.3750 0.4370 3/8 0.015 19/32 0.030 3/32 3/32 7L7-FK 7/16 0.4385 + .001 / –.000 0.4375 0.4995 7/16 0.015 21/32 0.030 3/32 3/32 8L31⁄2-FK 1/2 0.5010 + .001 / –.000 0.5000 0.5620 1/2 0.015 3/4 0.030 3/32 3/32 8L51⁄2-FK 1/2 0.5010 + .001 / –.000 0.5000 0.5620 1/2 0.015 3/4 0.030 3/32 3/32 8L8-FK 1/2 0.5010 + .001 / –.000 0.5000 0.5620 1/2 0.015 3/4 0.030 3/32 3/32 8L12-FK 1/2 0.5010 + .002 / –.000 0.5000 0.5620 1/2 0.015 3/4 0.031 1/8 1/8 10L51⁄2-FK 5/8 0.6260 + .001 / –.000 0.6250 0.6870 5/8 0.015 15/16 0.030 1/8 1/8 10L7-FK 5/8 0.6260 + .001 / –.000 0.6250 0.6870 5/8 0.015 15/16 0.030 1/8 1/8 10L10-FK 5/8 0.6260 + .001 / –.000 0.6250 0.6870 5/8 0.015 15/16 0.030 1/8 1/8 10L14-FK 5/8 0.6260 + .001 / –.000 0.6250 0.6870 5/8 0.015 15/16 0.030 1/8 1/8 10L18-FK 5/8 0.6260 + .001 / –.000 0.6250 0.6870 5/8 0.015 15/16 0.030 1/8 1/8 12L12-FK 3/4 0.7510 + .001 / –.000 0.7500 0.8120 3/4 0.015 1 1/8 0.030 1/8 1/8 12L18-FK 3/4 0.7510 + .001 / –.000 0.7500 0.8120 3/4 0.015 1 1/8 0.030 1/8 1/8 14L71⁄2-FK 7/8 0.8760 + .001 / –.000 0.8750 0.9370 7/8 0.015 1 5/16 0.030 1/8 1/8 14L14-FK 7/8 0.8760 + .001 / –.000 0.8750 0.9370 7/8 0.015 1 5/16 0.030 1/8 1/8 16L16-FK 1 1.0015 + .0015 / –.000 1.0000 1.0935 1 0.020 1 1/2 0.045 5/32 5/32 18L18-FK 1 1/8 1.1265 + .0015 / –.000 1.1250 1.2185 1 1/8 0.020 1 11/16 0.045 5/32 5/32 20L20-FK 1 1/4 1.2515 + .0015 / –.000 1.2500 1.3435 1 1/4 0.020 1 7/8 0.045 5/32 5/32 24L24-FK 1 1/2 1.5020 + .002 / –.000 1.5000 1.6245 1 1/2 0.025 2 1/4 0.0600 3/16 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