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Kaydon Bearings Slewinfinite Solutions

 
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spacer Kaydon Bearings - slewing ring bearings, turntable bearings
Kaydon Bearings - XR series

XR series cross roller bearings provide Slewinfinite® solutions, including a high degree of stiffness and low rotational torque within a minimal envelope. XR series bearings are ideal when a four-point contact ball bearing does not meet operating performance requirements for torque and stiffness.
 

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Turntable specifications

 
No gear
Internal gear
External gear
Notes & related items

 

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Kaydon Bearings - MT turntable 3D

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.

Availability
Kaydon XR series cross roller slewing ring bearings are custom manufactured to fit the design and specification.

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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See glossary of symbols

Kaydon Bearings - XR series turntable profile - no gear
No gear
Kaydon
part
number
Load
chart
Outline dimensions & weight Mounting holes Gear data
α = 20°
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)
Outer ring Inner ring
Lo
(in)
no Bo
(in)
Li
(in)
ni Bi
(in)
Tooth
form
D2
(in)
Pd
or (m)
z2 x2 b2
(in)
Radial
(lbs)
Thrust
(lbs)
Moment
(ft-lbs)
16318001 load chart 11.811 5.512 1.417 1.181 1.181 - - 30 10.630 6 M16x2 6.693 6 M16x2 - - - - - - - 19,150 22,340 7,530
16319001 load chart 15.886 9.055 2.165 1.772 1.850 - - 65 14.094 24 0.512 10.197 24 0.512 - - - - - - - 36,850 42,830 20,140
16320001 load chart 27.362 18.779 3.031 2.520 2.244 27.283 18.897 185 25.197 28 0.709 20.000 28 0.709 - - - - - - - 64,560 73,730 65,660
16321001 load chart 35.312 26.625 2.953 2.863 2.863 35.251 26.750 325 34.000 24  1/2-13 29.000 24 0.590 - - - - - - - 81,310 91,980 116,170
16322001 load chart 46.250 34.250 4.250 3.880 3.880 - 34.380 765 44.000 28 1-8 36.250 28 1.063 - - - - - - - 235,420 270,010 425,900
16323001 load chart 56.380 46.770 3.820 3.470 3.430 56.295 46.850 710 40.000 36 0.813 33.875 36  3/4-16 - - - - - - - 209,680 237,380 482,960
16324001 load chart 85.000 74.000 3.750 3.250 3.250 84.880 74.120 1,190 83.000 42 0.938 76.000 42 0.938 - - - - - - - 267,330 300,410 956,430
16325001 load chart 95.000 82.000 4.000 3.500 3.500 94.875 82.063 1,660 93.000 48 1.063 85.000 48 1.063 - - - - - - - 362,100 407,250 1,450,300
16326001 load chart 131.890 112.205 7.874 6.496 7.087 131.250 120.866 6,500 127.559 40 M36x3 116.535 40 1.496 - - - - - - - 762,050 858,130 4,185,500
16327001 load chart 158.661 140.945 8.819 6.654 6.654 - - 6,400 155.315 92 1.654 144.291 92 1.654 - - - - - - - 723,870 812,130 4,879,900

See glossary of symbols

Kaydon Bearings - XR series turntable profile - internal gear
Internal gear
Kaydon
part
number
Load
chart
Outline dimensions & weight Mounting holes Gear data
α = 20°
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)
Outer ring Inner ring
Lo
(in)
no Bo
(in)
Li
(in)
ni Bi
(in)
Tooth
form
D2
(in)
Pd
or (m)
z2 x2 b2
(in)
Radial
(lbs)
Thrust
(lbs)
Moment
(ft-lbs)
16328001 load chart 26.700 18.667 2.500 2.000 2.000 - - 130 24.500 18  1/2-13 20.500 18  1/2-13 FD 19.000 6 114 0 2.000 6,345 64,620 73,810 65,430
16329001 load chart 36.000 24.160 3.880 3.380 3.380 - - 465 33.250 24 0.813 27.250 30  3/4-10 SD 24.800 2.5 62 0 3.380 27,300 157,900 181,900 213,180
16330001 load chart 41.500 30.320 4.190 3.370 4.000 - 32.360 510 40.000 36 0.807 33.500 36  3/4-16 FD 30.800 2.5 77 -.400 3.500 27,600 220,820 254,250 362,220
16331001 load chart 41.970 30.828 3.350 2.560 2.950 41.929 - 400 39.961 24 M20x2.5 34.646 24 M20x2.5 FD 31.102 (10) 79 -.625 2.950 22,820 125,790 142,740 211,160
16332001 load chart 54.740 44.400 4.500 3.750 4.130 - 46.380 500 53.000 36 0.922 48.000 36  7/8-14 FD 45.200 2.5 113 0 3.750 28,600 205,410 232,690 460,450
16333001 load chart 78.819 62.913 5.906 4.921 4.921 - 65.157 2,050 76.575 48 1.181 67.520 48 1.181 FD 63.307 (12) 134 -.500 4.528 40,350 406,070 459,660 1,315,740
16334001 load chart 114.000 95.000 6.000 5.500 5.500 - 97.500 4,250 111.000 48 1.063 100.000 48 1-8 FD 96.000 2 192 0 5.000 54,550 500,930 563,230 2,389,570
16335001 load chart 121.496 97.717 6.772 6.299 6.299 - - 6,080 117.795 72 1.535 105.512 72 1.535 FD 98.268 (24) 104 -.708 6.299 134,270 755,820 854,030 3,797,780
16336001 load chart 142.000 123.200 6.000 5.500 5.500 - - 5,370 139.000 72 1.063 128.000 72 1.063 SD 124.000 2 248 0 5.500 50,440 675,310 758,460 4,057,130

See glossary of symbols

Kaydon Bearings - XR series turntable profile - external gear
External gear
Kaydon
part
number
Load
chart
Outline dimensions & weight Mounting holes Gear data
α = 20°
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)
Outer ring Inner ring
Lo
(in)
no Bo
(in)
Li
(in)
ni Bi
(in)
Tooth
form
D2
(in)
Pd
or (m)
z2 x2 b2
(in)
Radial
(lbs)
Thrust
(lbs)
Moment
(ft-lbs)
16337001 load chart 16.000 9.190 2.170 1.770 1.850 14.880 9.250 55 14.094 24 0.562 10.197 24 0.562 FD 15.600 5 78 0 1.460 4,320 24,130 27,780 13,190
16338001 load chart 23.333 13.750 2.750 2.500 2.500 - - 175 20.875 12 0.688 15.375 12 0.688 FD 23.000 6 138 0 2.500 7,430 85,170 99,260 69,470
16339001 load chart 27.362 18.780 3.030 2.520 2.240 26.380 18.900 180 25.197 18 0.688 20.000 18 0.688 FD 26.969 (5) 137 0 1.650 5,725 64,560 73,730 65,660
16340001 load chart 33.627 26.535 2.205 1.752 1.752 - - 140 30.906 36 M12x1.75 27.480 40 0.551 FD 33.071 (8) 105 0 1.752 9,130 58,790 66,360 77,600
16341001 load chart 36.333 24.500 4.690 4.310 3.880 35.500 24.625 580 33.625 24 0.813 26.125 24 0.813 FD 36.000 6 216 0 4.000 12,700 204,020 236,880 274,290
16340001 load chart 45.050 34.180 3.930 3.360 3.470 42.840 34.250 470 41.338 24 0.866 35.826 24 0.866 FD 43.701 (10) 111 +.713 2.580 15,490 128,480 145,650 223,060
16343001 load chart 51.040 40.000 4.000 3.500 3.500 - - 680 48.200 36 0.813 41.800 36 0.813 SD 50.400 2.5 126 0 3.500 24,380 195,710 222,290 396,330
16344001 load chart 63.150 47.480 5.118 4.409 4.409 61.063 47.559 1,420 58.819 36 1.023 50.394 36 1.023 FD 61.811 (10) 157 +.750 3.346 20,640 350,400 399,710 861,070
16345001 load chart 70.510 53.540 5.040 4.330 4.330 - - 1,460 65.354 42 1.063 55.906 42 1.063 FD 68.346 (14) 124 +1.150 4.330 36,690 293,690 332,590 801,340
16346001 load chart 85.866 75.250 3.300 2.800 2.800 - - 920 82.750 48 0.813 77.250 48 0.813 SD 85.333 3 256 0 2.800 18,280 190,740 213,890 686,710
16347001 load chart 100.667 84.000 6.500 6.500 4.000 98.750 84.250 3,240 95.000 48 1-8 87.000 48 1.063 FD 100.000 3 300 0 6.000 32,030 376,230 422,960 1,557,670
16348001 load chart 159.843 141.732 6.142 5.748 5.748 - - 5,480 154.528 100 1.299 144.685 100 1.299 FD 158.110 (16) 251 +.500 5.748 67,650 724,030 812,320 4,874,640
16393001 load chart 209.843 188.583 7.047 6.417 6.024 206.299 188.858 9,750 202.362 100 1.299 191.339 100 1.299 FD 206.929 (18) 292 +1.150 6.102 81,360 1,005,010 1,126,290 8,903,140

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warning sign

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Notes
Damage to equipment and danger to human life can result from failure to heed the recommendations in the text identified by the warning symbol in Kaydon Catalog 390 where further details and additional considerations can be found.

Capacities are dynamic and based on an L10 life of 1 million revolutions per ABMA Std 11-1990. Values listed do not apply simultaneously. Ring cross section and bolted joint configuration used may result in lower bearing capacity ratings.

Contact Kaydon for a 3D model.

Related pages
Slewing ring bearing selector
Turntable glossary of symbols

Related downloads
Catalog 390: XR series (Adobe PDF)
Catalog 390: all pages (Adobe PDF)

Adobe Acrobat Reader

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