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MTO-870 Slewing Ring Bearing Turntable Bearing

MTO-870
Outside Diameter of Outer Ring (Do) 47.444" | 1205.08mm
Inside Diameter of Inner Ring (di) 34.25" | 869.95mm
Height of Overall Bearing Assembly (H) 4.25" | 107.95mm
Height of Inner Ring (Hi)/Height of Outer Ring (Ho) 3.875" | 98.43mm
Approximate Weight (lbs) 835lbs | 378.748KG

MTO-870 Slewing Ring Bearing Turntable Bearing

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.

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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.

Applications

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

Specifications

Part Number

MTO-870

Moment Load Rating (Crm)

873000ft-lbs | 3897.321KN

Bearing Types

Slewing Ring Bearing

Outline Dimensions and Weight

Outside Diameter of Outer Ring (Do)

47.444" | 1205.08mm

Inside Diameter of Inner Ring (di)

34.25" | 869.95mm

Height of Overall Bearing Assembly (H)

4.25" | 107.95mm

Height of Inner Ring (Hi)/Height of Outer Ring (Ho)

3.875" | 98.43mm

Approximate Weight (lbs)

835lbs | 378.748KG

Mounting Holes

Bolt Circle in Outer Ring (Lo)

43.875" | 1114.43mm

Number Holes in Outer Ring (no)

24

Size of Hole in Outer Ring (Bo)

1.188

Bolt Circle in Inner Ring (Li)

36.25" | 920.75mm

Number Holes in Inner Ring (ni)

28

Size of Hole in Inner Ring (Bi)

1.188