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RK6-25N1Z Slewing Ring Bearing Turntable Bearing

RK6-25N1Z
4 point angular contact ball bearings
Outside Diameter of Outer Ring (Do) 29.45 " | 748.03mm
Inside Diameter of Inner Ring (di) 21.6" | 548.64mm
External Diameter on Outer Ring (Dr) 26.93 " | 684.02mm

RK6-25N1Z Slewing Ring Bearing Turntable Bearing

RK Series bearings have a flanged cross-section on one or both rings and range in size from 20 – 47 inches OD (500 – 1200 mm). The flanged design reduces weight and provides the equipment designer greater flexibility for configuration of adjacent mounting structures and bolting arrangements. RK Series bearings are well suited for many applications where a large diameter and lighter weight are predominant factors in selection of a bearing. 

Design Features

RK Series bearings are offered in non-geared, internally geared, and externally geared configurations for maximum design flexibility. The gears are Involute Stub designs with 20° pressure angles, manufactured to AGMA Class Q5 quality and .005 to .015 inches allowance for backlash. All models feature four fittings for lubrication, spaced 90 degrees apart. On non-geared and internal geared models, they are located on the outer counterbore diameter (Dr). On external geared models, they are located on the inner counterbore diameter (dr).

Applications

RK Series bearings have been used successfully in a variety of light to medium duty applications including:

❚ Small cranes, booms, and lifts

❚ Industrial positioners and rotary tables

❚ Chute swivels

❚ Stretch wrapping machines

❚ Bottle filling machines

❚ Conveyors and related material handling equipment

❚ Rotating displays

RK INTERNAL.pngrk external.png

Specifications

Specifications

Part Number

RK6-25N1Z

Maximum Allowable Gear Tooth Load (Fz)

6400lbs | 28.571KN

Moment Load Rating (Crm)

49800ft-lbs | 222.321KN

Bearing Types

Slewing Ring Bearing

Outline Dimensions and Weight

Outside Diameter of Outer Ring (Do)

29.45 " | 748.03mm

Outside Diameter of Outer Ring (Do) Tolerance

±.040 " | ±1.02mm

Inside Diameter of Inner Ring (di)

21.6" | 548.64mm

Inside Diameter of Inner Ring (di) Tolerance

+0.03 " | +0.76mm

External Diameter on Outer Ring (Dr)

26.93 " | 684.02mm

External Diameter on Outer Ring (Dr) Tolerance

-0.08 " | -2.03mm

Internal Diameter on Outer Ring (Di)

25.28 " | 642.11mm

External Diameter on Inner Ring (do)

25.2 " | 640.08mm

Internal Diameter on Inner Ring (dr)

-

Internal Diameter on Inner Ring (dr) Tolerance

-

Approximate Weight (lb)

106 lbs | 48.081KG

Mounting Holes

Bolt Circle in Outer Ring (Lo)

28.38 " | 720.85mm

Number Holes in Outer Ring (no)

12

Bolt Circle in Inner Ring (Li)

23.63 " | 600.2mm

Number Holes in Inner Ring (ni)

18

Gear Data

Pitch Diameter of Gear (D2)

22 inch" | 558.8mm

Diametral Pitch (Pd)

4

Number of Gear Teeth (z2)

88

Pressure Angle of Gear Teeth (α)

20 º

Mating Pinions

39200001 39200002