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16274001 Slewing Ring Bearing Turntable Bearing for Large Excavators

Part Number 16274001
Maximum Allowable Gear Tooth Load (Fz) 48,640lbs | 217.143KN
Moment Load Rating (Crm) 1,225,400ft-lbs | 5470.536KN
Bearing Types Slewing Ring Bearing

16274001 Slewing Ring Bearing Turntable Bearing for Large Excavators

The DT Series consists of the eight-point ball bearing Kaydon originally developed to provide maximum load capacity for given envelope and bolt circle diameters. It provides up to 80% increase in capacity over that of a single-row four-point design of the same diameter and bolt circles. Yet the DT Series has a smaller profile than a three-row roller design. 

Design Features 

The internal configuration consists of two deep groove gothic arch raceways, each with a maximum ball complement, located in both the inner and outer rings. This results in a total of eight surfaces where the balls may contact at any time, providing exceptional moment, thrust, and radial load capacities. Through precise manufacturing, the raceways are closely matched to provide a high degree of load sharing. Integral seals are provided to assist in the exclusion of contaminants. 

Availability 

DT Series bearings are made to order with a fully customizable hole pattern for bearing retention, and an internal or external gear or other drive mechanism. 

Applications 

DT Series bearings have been used successfully in heavy duty applications including: 

❚ Large excavators ❚ Large cranes ❚ Mining equipment ❚ Wind turbines ❚ Telescopes

DT NO GEAR.pngdt internal gear.pngdt external gear.png


Specification

Specifications

Part Number

16274001

Maximum Allowable Gear Tooth Load (Fz)

48,640lbs | 217.143KN

Moment Load Rating (Crm)

1,225,400ft-lbs | 5470.536KN

Bearing Types

Slewing Ring Bearing

Outline Dimensions and Weight

Outside Diameter of Outer Ring (Do)

56.693" | 1440mm

Inside Diameter of Inner Ring (di)

43.661" | 1108.99mm

Height of overall bearing assembly(H)

5.472" | 138.99mm

Height of outer ring(Ho)

5.118" | 130mm

Height of inner ring(Hi)

5.118" | 130mm

External diameter on outer ring(Dr)

-

Internal diameter on inner ring(dr)

46.142" | 1172.01mm

Approximate Weight (lbs)

1,200lbs | 544.308KG

Mounting Holes

Bolt Circle in Outer Ring (Lo)

54.724" | 1389.99mm

Number Holes in Outer Ring (no)

48

Size of hole in outer ring(Bo)

0.866"

Bolt circle in inner ring(Li)

48.425" | 1230mm

Number Holes in Inner Ring (ni)

48

Size of hole in inner ring(Bi)

0.866"

Gear Data

Pressure Angle of Gear Teeth (α)

20 º

Tooth form

FD

Pitch Diameter of Gear (D2)

44.094" | 1119.99mm

Gear module(M)

14

Number of Gear Teeth(z2)

80

("+" / "-" sign increases tooth thickness at D2(X2)

-.5

Face Width of Gear Teeth(b2)

4.134

gear

Internal