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MTO-870 Gearless Four Point Contact Slewing Bearing

MTO-870 is a gearless four point contact slewing bearing with a 34.25 in bore, 47.444 in outside diameter and 4.25 in overall assembly height. Bolted inner and outer rings provide the mounting interface. The gearless configuration allows the drive system to be selected independently.
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  • MTO-870

  • BWK

  • BWK-MTO-870

DESCRIPTION

Product Overview

MTO-870 is a gearless four point contact slewing bearing with a 34.25 in bore, 47.444 in outside diameter and 4.25 in overall assembly height. Bolted inner and outer rings provide the mounting interface. The gearless configuration allows the drive system to be selected independently.

MTO-870

Technical Specifications

Model MTO-870
Product Type Gearless Four Point Contact Slewing Bearing
Structure Single-row ball ring without gear, bolted mounting
Dimension Units Inch (dimensions shown)
Series MT Series
Gear Without Gear
Type Ball
Bearing Type Standard
Inside Diameter Of Inner Ring 34.25 in
Outside Diameter Of Outer Ring 47.444 in
Height Of Overall Bearing Assembly 4.25 in
Height Of Inner Ring 3.875 in
Height Of Outer Ring 3.875 in
Bolt Circle In Inner Ring 36.25 in
For Load Direction Four Point Contact
Bolt Circle In Outer Ring 43.875 in
Size Holes In Inner Ring 1.188 in
Size Holes In Outer Ring 1.188 in
Number Holes In Inner Ring 28
Number Holes In Outer Ring 24
Moment Load Rating 873000 ft-lbf
Ring Material Options 42CrMo or 50Mn or 440C; confirm supplied grade when ordering
Ball Material Chrome Steel
Cage Material Nylon or 300 Series Stainless Steel
Seal Material NBR
RoHS Compliant
Weight 835 lbs

Applications

Industrial turntables, handling platforms and rotary assemblies.

Selection and Installation

Assess axial load, radial load and overturning moment together with speed, duty cycle and mounting stiffness. Confirm the bolt circles, hole sizes, material grade, seal configuration and lubrication requirements before ordering. Use flat, adequately stiff mounting surfaces and the specified bolt-tightening procedure.

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MTO-870 gearless four point contact slewing bearing slewing ring bearing without gear industrial rotary bearing BWK