RK Series Slewing Ring Bearings KAYDON Part No.

RK series slewing ring bearings are generally available from stock, and mating pinions for the geared versions are also generally available.

Product
Number
gear Outline dimensions & weight Moment
rating
Crm
(ft-lbs)
Do
(in)
di
(in)
Dr
(in)
Di
(in)
do
(in)
dr
(in)
G
approx.
(lbs)
RK6-16E1Z External gear 19.9 11.97 - 16.22 16.14 14.49 72 22700
RK6-16P1Z No gear 20.39 11.97 17.87 16.22 16.14 14.49 58 22700
RK6-16N1Z Internal gear 20.39 12.85 17.87 16.22 16.14 - 65 22700
RK6-22E1Z External gear 25.15 17.09 - 21.34 21.26 19.61 96 37700
RK6-22P1Z No gear 25.51 17.09 22.99 21.34 21.26 19.61 76 37700
RK6-22N1Z Internal gear 25.51 17.6 22.99 21.34 21.26 - 90 37700
RK6-25E1Z External gear 29.15 21.03 - 25.28 25.2 23.55 115 49800
RK6-25P1Z No gear 29.45 21.03 26.93 25.28 25.2 23.55 89 49800
RK6-25N1Z Internal gear 29.45 21.6 26.93 25.28 25.2 - 106 49800
RK6-29E1Z External gear 32.9 24.97 - 29.22 29.14 27.49 128 54200
RK6-33E1Z External gear 32.9 24.97 - 29.22 29.14 27.49 128 56500
RK6-29P1Z No gear 33.39 24.97 30.87 29.22 29.14 27.49 104 54200
RK6-29N1Z Internal gear 33.39 25.6 30.87 29.22 29.14 - 121 54200
RK6-33P1Z No gear 37.32 28.9 34.8 33.15 33.07 31.42 118 56500
RK6-33N1Z Internal gear 37.32 29.133 34.8 33.15 33.07 - 148 56500
RK6-37E1Z External gear 41.2 32.84 - 37.09 37.01 35.36 172 65200
RK6-37P1Z No gear 41.26 32.84 38.74 37.09 37.01 35.36 132 65200
RK6-37N1Z Internal gear 41.26 33.133 38.74 37.09 37.01 - 165 65200
RK6-43E1Z External gear 46.867 38.75 - 43 42.92 41.27 189 75500
RK6-43P1Z No gear 47.17 38.75 44.65 43 42.92 41.27 153 75500
RK6-43N1Z Internal gear 47.17 39.133 44.65 43 42.92 - 188 75500

Design Features

The internal configuration is a deep-groove gothic arch raceway, which provides four points of contact with the balls, enabling the bearing to simultaneously carry radial, axial, and moment loads. The use of spacer balls alternated with load balls allows for lower rotational torque and superior performance in applications involving oscillatory movement. Integral face riding bearing seals are provided to assist in the exclusion of contaminants.

RK series slewing bearings are offered in nongeared, internally geared, and externally geared configurations for maximum design flexibility. The gears are involute stub designs with 20º pressure angles, manufactured to AGMA Class Q5 quality and 0.005 to 0.015 inches allowance for backlash. RK series turntable bearings range in size from 20-47 inches OD (500-1200 mm OD).

Applications

    RK series slewing ring bearing solutions have been used successfully in a variety of light- to medium-duty applications including:
  • Small cranes, booms, and lifts
  • Industrial positioners and rotary tables
  • Chute swivels
  • Stretch wrapping machines
  • Bottle filling machines
  • Conveyors and related material handling equipment
  • Rotating displays

Recommend