Ball Bearing Slewing Ring

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Ball bearings reduce friction between shafts and axles and carry radial loads, thrust loads, or a combination of both. They contain an outer ring, inner ring, and a cage that holds and spaces bearing balls, the bearing's spherical rolling elements. These bearing balls must be perfectly rounded and spaced to prevent friction and bearing failure. Ball bearings come in single- and double-row configurations depending on the type and direction of loads they carry. There are many types of ball bearings. Ball thrust bearings only carry axial loads, while angular contact ball bearings support both thrust and radial loads. The radial load an angular contact ball bearing can support is directly proportionate to the axial load it can support. Self-aligning ball bearings compensate for improper bearing mounting that leads to misalignment. Thin-section ball bearings are used in small spaces that have weight restrictions.


Slewing ring is a rotational rolling-element bearing that typically supports a heavy but slow-turning or slow-oscillating load, often a horizontal platform such as a conventional crane, a swing yarder, or the wind-facing platform of a horizontal-axis windmill. 


Slewing Drive 14 Inch Slewing Drive Se14 for Crane

0662536039680 B00308

Precision 3inch Worm Drive Slewing Drive for Rotary Table

KD-65 XPO Bearing
Inch Open

Large Size 32" Slewing Drive (SE32) for Crane Equipment

90021 8482.20.00.00
Tapered 31171516

Heavy Duty Better Seal Slewing Drive for Truck Crane

Spherical Plain Bear 0.0

Better Shock Resistance and Higher Speed Slewing Drive Hse12 for Turntable

SKF 0.0
B04144 Bearings

Precision 9inch Slewing Drive PE9 for Truck Crane

0782475862337 Mounted Units &
1.869 N/A

High Quality Worm Gear Slew Drive for Mist Cannon Truck Se9

Inch No
HJ-405228 B04144

21inch Slewing Drive Se21 Used for Port Crane and Rotary Table

1.4375 in Mobilgrease FM222
Round Wide Slot Take-Up

21" Slewing Drive We21 Used for Truck Crane and Ship Crane

SS-2428-12 SAE841
0.875 Inch | 22.225 Plain

Overload 14" Worm Drive We14 for Aerial Work Platform

M06288 173.3

25inch Slewing Drive Worm Drive Se25 Used for Construction Machine

Yes 0.27
N/A Needle Roller Bearin

Precision 5inch Slewing Drive Worm Drive PE5

N/A M06110