Deep groove metric ball bearings are especially suitable for high-speed applications due to their minimal contact design which allows exceptional rotating speed.This bearing has rubber seals on both sides to protect the bearing from dust or any possible contamination, which can extend bearing life, and retain the lubricant in the bearing.The chrome steel bearing balls provide durability and resistance to deformity under heavy loads, and the steel cage evenly spaces the balls for even load distribution and prevents contact to reduce friction, vibrations, and noise. This deep-groove sealed ball bearing is for use in applications that involve combined radial and axial loads and a need for high running accuracy at high rotational speeds. Oil and wear-resistant synthetic Steel reinforcement Accepts radial and axial loads Versatile High rotational speed Reduce friction, vibration & noise Fits: Kawasaki KEF300 LAKOTA 1995-1999 KLF300B BAYOU 1988-2002 KSF250 MOJAVE 1998-2003 Yamaha WR250F 2001-2004 2006-2007 2009 2011-2012 2014-2019 WR250R 2008-2012 2014-2019 WR250X 2008-2012 WR400F 1999-2001 WR426F 2001-2002 WR450F 2003-2007 2009 2011-2018 YZ125 1999-2009 2011-2019 YZ250 1999-2008 2011-2015 2017-2019 YZ250F 2001-2002 2004-2007 YZ250FX 2015-2017 2019 YZ250X 2016-2017 2019 YZ400F 1999 YZ426F 2000-2002 YZ450F 2003-2007 YZ450FX 2016-2019