National/ Timken Seals Catalog - Norfolkbearings.com

SECTION 1-A TECHNICALOIL SEAL DESIGN AND SELECTIONNATIONAL OIL SEAL DESIGN TYPE DESCRIPTIONMaximum Shaft Finish STBM Maximum Maximum ShaftPressure (Micro Inch) Shaft (Shaft to Bore Dynamic RunoutPSI @ FPM Hardness Misalignment @ RPM (DRO)7 @ 1000 FPM 10-20 Above Rockwell C-45 .015” ECC @ 800 RPM .025” TIR @ 800 RPM5 @ 2000 FPM .010” ECC @ 4200 RPM .020” TIR @ 2200 RPM3 @ 3000 FPM .015” TIR @ 4200 RPM7 @ 1000 FPM 10-20 Above Rockwell C-45 .020” ECC @ 4200 RPM .060” TIR @ 4200 RPM5 @ 2000 FPM3 @ 3000 FPMAtmospheric 10-25 Above Rockwell C-45 .005” ECC .005” TIRAtmospheric 10-25 Above Rockwell C-45 .010” ECC .010” TIR7 @ 1000 FPM 10-20 Above Rockwell C-45 .015” ECC @ 800 RPM .025” TIR @ 800 RPM5 @ 2000 FPM .010” ECC @ 4200 RPM .020” TIR @ 2200 RPM3 @ 3000 FPM .015” TIR @ 4200 RPM2 @ 2000 FPM 100 Max. Above Rockwell C-45 .010” ECC Max. .015” TIRVI