XR SeriesKAYDON Part No.

Kaydon XR series cross roller slewing ring bearings are custom manufactured to fit the design and specification.
Product
Number
gear Outline dimensions & weight Max gear
tooth load Fz
(lbs)
Dynamic capacities
1 million revolutions
L10 life
Do
(in)
di
(in)
H
(in)
Ho
(in)
Hi
(in)
Dr
(in)
dr
(in)
G
approx.
(lbs)
Radial
(lbs)
Thrust
(lbs)
Moment
(ft-lbs)
†16318001 No 11.811 5.512 1.417 1.181 1.181 - - 30 - 19150 22340 7530
†16319001 No 15.886 9.055 2.165 1.772 1.85 - - 65 - 36850 42830 20140
†16320001 No 27.362 18.779 3.031 2.52 2.244 27.283 18.897 185 - 64560 73730 65660
†16321001 No 35.312 26.625 2.953 2.863 2.863 35.251 26.75 325 - 81310 91980 116170
†16322001 No 46.25 34.25 4.25 3.88 3.88 - 34.38 765 - 235420 270010 425900
†16323001 No 56.38 46.77 3.82 3.47 3.43 56.295 46.85 710 - 209680 237380 482960
†16324001 No 85 74 3.75 3.25 3.25 84.88 74.12 1190 - 267330 300410 956430
†16325001 No 95 82 4 3.5 3.5 94.875 82.063 1660 - 362100 407250 1450300
†16326001 No 131.89 112.205 7.874 6.496 7.087 131.25 120.866 6500 - 762050 858130 4185500
†16327001 No 158.66 140.945 8.819 6.654 6.654 - - 6400 - 723870 812130 4879900
†16328001 Internal 26.7 18.667 2.5 2 2 - - 130 6345 64620 73810 65430
†16329001 Internal 36 24.16 3.88 3.38 3.38 - - 465 27300 157900 181900 213180
†16330001 Internal 41.5 30.32 4.19 3.37 4 - 32.36 510 27600 220820 254250 362220
†16331001 Internal 41.97 30.828 3.35 2.56 2.95 41.929 - 400 22820 125790 142740 211160
†16332001 Internal 54.74 44.4 4.5 3.75 4.13 - 46.38 500 28600 205410 232690 460450
†16333001 Internal 78.819 62.913 5.906 4.921 4.921 - 65.157 2050 40350 406070 459660 1315740
†16334001 Internal 114 95 6 5.5 5.5 - 97.5 4250 54550 500930 563230 2389570
†16335001 Internal 121.496 97.717 6.772 6.299 6.299 - - 6080 134270 755820 854030 3797780
†16336001 Internal 142 123.2 6 5.5 5.5 - - 5370 50440 675310 758460 4057130
†16337001 External 16 9.19 2.17 1.77 1.85 14.88 9.25 55 4320 24130 27780 13190
†16338001 External 23.333 13.75 2.75 2.5 2.5 - - 175 7430 85170 99260 69470
†16339001 External 27.362 18.78 3.03 2.52 2.24 26.38 18.9 180 5725 64560 73730 65660
†16340001 External 33.627 26.535 2.205 1.752 1.752 - - 140 9130 58790 66360 77600
†16341001 External 36.333 24.5 4.69 4.31 3.88 35.5 24.625 580 12700 204020 236880 274290
†16342001 External 45.05 34.18 3.93 3.36 3.47 42.48 34.25 470 15490 128480 145650 223060
†16343001 External 51.04 40 4 3.5 3.5 - - 680 24380 195710 222290 396330
†16344001 External 63.15 47.48 5.118 4.409 4.409 61.063 47.559 1420 20640 350400 399710 861070
†16345001 External 70.51 53.54 5.04 4.33 4.33 - - 1460 36690 293690 332590 801340
†16346001 External 85.866 75.25 3.3 2.8 2.8 - - 920 18280 190740 213890 686710
†16347001 External 100.67 84 6.5 6.5 4 98.75 84.25 3240 32030 376230 422960 1557670
†16348001 External 159.843 141.732 6.142 5.748 5.748 - - 5480 67650 724030 812320 4874640
†16393001 External 209.843 188.583 7.047 6.417 6.024 206.299 188.858 9750 81360 1005010 1126290 8903140

Design Features

The internal configuration consists of cylindrical rollers in a v-shaped groove in each ring. The rollers are oriented with alternating axes of rotation. Positioned in this manner, the bearing accepts all combinations of radial, thrust, and moment loads. Rotational torque is less than a four-point contact ball design because each roller only transmits load in a single direction, and the greater contact area and geometry of a roller versus a ball provides a higher degree of stiffness and rigidity.

A roller of approximately the same size as a ball has greater load-carrying ability. However, because not all the rollers are oriented in one direction, their thrust and moment load capacity is less than that of a four-point ball bearing.

Gear teeth or other drive mechanisms can be provided on the inner or outer support ring, and your choice of hole pattern can be added for bearing retention.

Applications

    XR series bearing solutions have been used successfully in applications requiring extra stiffness with a low torque requirement including:

  • Radar
  • Military turrets
  • Machine tools
  • Tunnel boring machines

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