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

Kaydon HT series slewing ring bearings are larger versions of the HS series, with increased ball diameter and cross-sectional area providing substantially more capacity. HT series slewing bearings provide a wide variety of solutions for a variety of medium- to heavy-duty applications.
 

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Turntable specifications

 
No gear
Internal gear
External gear
Notes & related items

 

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Kaydon Bearings - HT turntable 3D

Design features
The internal configuration consists of deep groove gothic arch raceways and maximum ball complement. This results in a four-point contact design that provides exceptional moment, thrust, and radial load capacities. Integral seals are provided to assist in the exclusion of contaminants.

Geared rings have tapped holes, while non-geared rings have through holes. HT series bearings are available in internal geared, external geared, and nongeared configurations. The gears are involute stub designs with 20° pressure angles, manufactured to AGMA Class Q5 and 0.015 to 0.025 inches allowance for backlash. They range in size from 36‐66 inches OD (900‐1700 mm OD) with a standard cross section.

Availability
HT series slewing ring bearings are made to order and can require a longer lead time as forgings are not stocked.

Applications
HT series bearings have been used successfully in a variety of medium- to heavy-duty applications including:

  • Cranes
  • Aerial lifts
  • Digger derricks
  • Chute swivels
  • Lift truck rotators
  • Industrial turntables

Click on the Kaydon part number to view and download 3D models and CAD files. You must login or register before accessing drawings.

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See glossary of symbols

Kaydon Bearings - HT series turntable profile - no gear
No gear
Kaydon
part
number
Load
chart
Outline dimensions & weight Mounting holes Gear data
inv. stub, α = 20°
Max
gear
tooth
load
Fz
(lbs)
Moment
rating
Crm
(ft-lbs)
Do
(in)
di
(in)
G
approx.
(lbs)
Outer ring Inner ring
Lo
(in)
no Li
(in)
ni D2
(in)
Pd z2
HT10-30P1Z load chart 36.000 24.000 447 33.250 24 26.750 30 - - - - 340,000
HT10-36P1Z load chart 42.000 30.000 521 39.250 28 32.750 32 - - - - 395,700
HT10-42P1Z load chart 48.000 36.000 628 45.250 32 38.750 36 - - - - 457,000
HT10-48P1Z load chart 54.000 42.000 719 51.250 36 44.750 40 - - - - 517,900
HT10-54P1Z load chart 60.000 48.000 809 57.250 40 50.750 44 - - - - 578,400
HT10-60P1Z load chart 66.000 54.000 865 63.250 44 56.750 48 - - - - 638,800

See glossary of symbols

Kaydon Bearings - HT series turntable profile - internal gear
Internal gear
Kaydon
part
number
Load
chart
Outline dimensions & weight Mounting holes Gear data
inv. stub, α = 20°
Max
gear
tooth
load
Fz
(lbs)
Moment
rating
Crm
(ft-lbs)
Do
(in)
di
(in)
G
approx.
(lbs)
Outer ring Inner ring
Lo
(in)
no Li
(in)
ni D2
(in)
Pd z2
HT10-30N1Z load chart 36.000 24.160 411 33.250 24 27.250 30 24.800 2.5 62 21,783 340,000
HT10-36N1Z load chart 42.000 30.160 517 39.250 28 33.250 32 30.800 2.5 77 21,195 395,700
HT10-42N1Z load chart 48.000 36.160 580 45.250 32 39.250 36 36.800 2.5 92 20,819 457,000
HT10-48N1Z load chart 54.000 42.160 689 51.250 36 45.250 40 42.800 2.5 107 20,548 517,900
HT10-54N1Z load chart 60.000 48.160 775 57.250 40 51.250 44 48.800 2.5 122 20,344 578,400
HT10-60N1Z load chart 66.000 54.160 842 63.250 44 57.250 48 54.800 2.5 137 20,185 638,800

See glossary of symbols

Kaydon Bearings - HT series turntable profile - external gear
External gear
Kaydon
part
number
Load
chart
Outline dimensions & weight Mounting holes Gear data
inv. stub, α = 20°
Max
gear
tooth
load
Fz
(lbs)
Moment
rating
Crm
(ft-lbs)
Do
(in)
di
(in)
G
approx.
(lbs)
Outer ring Inner ring
Lo
(in)
no Li
(in)
ni D2
(in)
Pd z2
HT10-30E1Z load chart 35.840 24.000 398 32.750 24 26.750 30 35.200 2.5 88 18,393 340,000
HT10-36E1Z load chart 41.840 30.000 481 38.750 28 32.750 32 41.200 2.5 103 18,608 395,700
HT10-42E1Z load chart 47.840 36.000 562 44.750 32 38.750 36 47.200 2.5 118 18,772 457,000
HT10-48E1Z load chart 53.840 42.000 660 50.750 36 44.750 40 53.200 2.5 133 18,901 517,900
HT10-54E1Z load chart 59.840 48.000 742 56.750 40 50.750 44 59.200 2.5 148 19,005 578,400
HT10-60E1Z load chart 65.840 54.000 800 62.750 44 56.750 48 65.200 2.5 163 19,090 638,800

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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.

Related pages
Slewing ring bearing selector
Turntable glossary of symbols

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

Adobe Acrobat Reader

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