Page 344 - Rollingbearings
P. 344

2  Insert bearings (Y-bearings)
        Insert bearings with               For demanding operating conditions that   Stainless steel bearings
        grub screws                        occur in agricultural applications, such as   • are intended for use in corrosive
                                           combines and balers, harvesters and disk
                                           harrows, SKF has designed the YARAG 2   environments
        • are suitable for applications for both con-  bearing series (ig. 11). These bearings:  • are available with an inner ring extended
   2      stant and alternating directions of rotation                          on both sides (bearing series
        • are locked onto the shaft by tightening the   • are itted with a patented 5-lip seal (5-lip   YAR 2  -2RF/HV)
          two cup point hexagonal grub (set) screws,   seals, page 346)       • have all steel components made of stain-
          positioned 120° apart in the inner ring  • are supplied without any lubrication holes   less steel, including rings, balls, sheet
                                             in the outer ring                  metal parts of both seals and lingers, and
                                                                                grub screws
        Basic design bearings                                                 • are capped on both sides with a highly
                                           Bearings with zinc-coated            effective multiple seal (Multiple seals,
        • are available with an inner ring extended   rings                     page 346) made of food-compatible rubber
          on one side (ig. 9, bearing series YAT 2)                             with a stainless steel insert and a stainless
        • are available with an inner ring extended   • are intended for use in corrosive   steel linger
          on both sides (ig. 10, bearing series   environments                • are illed with a food-grade grease
          YAR 2)                           • are available with an inner ring extended   • have an annular groove with one lubri-
        • are capped on both sides with:     on both sides (bearing series      cation hole in the outer ring, located on
             – a rugged standard seal (Standard seals,   YAR 2  -2RF/VE495)     the side opposite the locking device
            page 345) for bearing series YAT 2  • have grub screws made of stainless steel  •  have a lower dynamic load carrying capacity
             – a rugged standard seal and an additional   • are capped on both sides with a highly   than same-sized bearings made of high
            plain sheet steel linger (Standard seals   effective multiple seal (Multiple seals,   grade carbon chromium steel
            with additional lingers, page 345,   page 346) made of food-compatible rub-
            designation sufix 2F) or a rubberized   ber with a stainless steel insert and a
            sheet steel linger (Multiple seals,   stainless steel linger
            page 346, designation sufix 2RF) for   • are illed with a food-grade grease
            bearing series YAR 2           • have two lubrication holes in the outer
        • have two lubrication holes in the outer   ring, one on each side, positioned 120°
          ring as standard, one on each side, pos-  apart
          itioned 120° apart
        • can be supplied without lubrication holes
          on request (designation sufix W)

















                                   Fig. 9                            Fig. 10                            Fig. 11
          Bearing in the YAT 2 series        Bearing in the YAR 2 series        Bearing in the YARAG 2 series


















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