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KH-125P Slewing Ring Bearing Turntable Bearing

KH-125P
Outside Diameter of Outer Ring (Do) 16.500" | 419.1mm
Inside Diameter of Inner Ring (di) 8.625" | 219.08mm
Internal Diameter on Outer Ring (Di) 12.750" | 323.85mm

KH-125P Slewing Ring Bearing Turntable Bearing

Introduction

KH Series slewing ring bearings have a rectangular cross-section and range in size from 16 – 37 inches OD (400 – 950 mm). They provide precise positioning and repeatability in applications where rotation is constant, intermittent, or oscillating.

Design Features

The internal configuration is a deep-groove gothic arch raceway, which provides four points of contact with the balls, enabling it to carry radial, thrust, and moment loads individually or simultaneously. The use of internal diametral preload provides for greater stiffness, which combined with tightly controlled radial and axial runouts, delivers accurate repeatability. The axial runouts are 0.001 inch TIR and the radial runouts for locating diameters are 0.002 inch TIR.

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A separator is used to maintain consistent ball spacing interval, keep friction to a minimum, and minimize noise. Integral face riding seals are provided to assist in the exclusion of contaminants.

KH Series bearings are offered in non-geared and externally geared configurations. The gears have Full Depth Involute teeth and are

manufactured to an AGMA Class Q8 quality, allowing for decreased backlash, more accurate positioning, and less noise while operating.

Availability

KH Series bearings are generally available from stock.

Applications

KH Series bearings have been used successfully in applications demanding higher precision, including:

❚ Precision rotary index tables

❚ Radar antennas

❚ Satellite antennas

❚ Robots

❚ Medical equipment

❚ Machine tool tables

❚ Any design where the KH bearing features will interface with other precision components.

Specifications

Part Number

KH-125P

Bearing Types

Slewing Ring Bearing

Maximum Allowable Gear Tooth Load (Fz)

-

Outline Dimensions and Weight

Outside Diameter of Outer Ring (Do)

16.500" | 419.1mm

Outside Diameter of Outer Ring (Do) Tolerance

±.050" | ±1.27mm

Inside Diameter of Inner Ring (di)

8.625" | 219.08mm

Inside Diameter of Inner Ring (di) Tolerance

±.050" | ±1.27mm

Internal Diameter on Outer Ring (Di)

12.750" | 323.85mm

Internal Diameter on Outer Ring (Di) Tolerance

*

External Diameter on Inner Ring (do)

12.250" | 311.15mm

External Diameter on Inner Ring (do) Tolerance

*

Approximate Weight (G)

80lbs | 36.287KG

Mounting Holes

Bolt Circle in Outer Ring (Lo)

14.750 " | 374.65mm

Size of Hole in Outer Ring

See the picture on the right

Number Holes in Outer Ring (no)

16

Bolt Circle in Inner Ring (Li)

10.250" | 260.35mm

Size of Hole in Inner Ring

See the picture on the right

Number Holes in Inner Ring (ni)

16