MS21428 • SAE-AS7949
• Extra light duty
• Single row, ball, torque tube type
• PTFE seals
• Exposed surfaces except bore and seals
are cadmium plated
• Prelubricated for life
• This series is dimensionally interchangeable
with the unsealed MB500 series
• Also offered with CRES 440C material
and/or zinc nickel plating
per OEM specifications