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MTE-730 Slewing Ring Bearing Turntable Bearing for Cranes

Part Number MTE-730
Moment Load Rating (Crm) 588000ft-lbs | 2625KN
Bearing Types Slewing Ring Bearing

MTE-730 Slewing Ring Bearing Turntable Bearing for Cranes

MT Series slewing ring bearings have a rectangular cross-section and range in size from 4 – 47 inches OD (100 – 1200 mm). They provide optimal economy and capacity for a given envelope dimension.

Design Features

The internal configuration consists of deep groove gothic arch raceways and maximum ball complement. This results in a four-point contact design which provides exceptional moment, thrust, and radial load capacities. Integral face riding seals for the larger sizes and non-contact shields for the smaller assist in the exclusion of contaminants. These features make them an ideal choice for a 

wide range of applications from light to heavy duty.

MT Series bearings are offered in non-geared (MTO) and externally geared (MTE) configurations. The gears are Fellows Stub Involute up to the MTE-324 size and Stub Involute for larger sizes, all manufactured to AGMA Class Q6 quality. Contact Kaydon for tooth backlash allowance.

Part numbers ending in a “T” suffix have threaded mounting holes. Thread depths are a minimum of 1.5 times the nominal hole size diameter indicated.Part numbers ending in an "X" suffix provide additional load capacity.


MT Series bearings have been used successfully in a wide range of applications from light to heavy duty.

The smaller sizes are well suited for:

❚ Manipulators❚ Jib cranes❚ Lift-assist devices❚ Work positioners

Larger sizes are well suited for:

❚ Truck-mounted cranes❚ Aerial lifts❚ Hoists❚ Small wind turbines❚ Non-precision positioning tables




Part NumberMTE-730
Moment Load Rating (Crm)588000ft-lbs | 2625KN
Bearing TypesSlewing Ring Bearing
Outline Dimensions and Weight
Outside Diameter of Outer Ring (Do)41.85" | 1062.99mm
Inside Diameter of Inner Ring (di)28.75" | 730.25mm
Height of Overall Bearing Assembly (H)3.250" | 82.55mm
Height of Inner Ring (Hi)/Height of Outer Ring (Ho)2.880" | 73.15mm
Approximate Weight (lbs)491lbs | 222.713KG
Mounting Holes
Bolt Circle in Outer Ring (Lo)38.000" | 965.2mm
Number Holes in Outer Ring (no)20
Size of Hole in Outer Ring (Bo)1.063"
Bolt Circle in Inner Ring (Li)31.000" | 787.4mm
Number Holes in Inner Ring (ni)24
Size of Hole in Inner Ring (Bi)1.063"
Gear Data
Pressure Angle of Gear Teeth (α)20 º
Tooth formSD
Pitch diameter of gear(D2)41.2" | 1046.48mm
Diametral pitch(Pd)2.5
Number of gear teeth(z2)103
Face width of gear teethαb2)2.63"