Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesInternal gearKaydon RK6-16N1Z*

21N.0414.19.002 Slewing Ring Bearing

21 Series slewing ring bearing, internal gear, 518 mm OD × 326 mm ID. Interchangeable with Kaydon RK6-16N1Z*.

Specifications

SlewPro part number21N.0414.19.002
Series21 Series
Bearing designFour-point contact, single-row ball
GearInternal gear
Raceway diameter414 mm (16.30 in)
Outside diameter517.9 mm (20.39 in)
Inside diameter326.4 mm (12.85 in)
Overall height55.9 mm (2.20 in)
Outer ring height45.5 mm (1.79 in)
Inner ring height45.5 mm (1.79 in)
Outer ring bore413.3 mm (16.27 in)
Inner ring outside diameter414.8 mm (16.33 in)
All diameters on drawing20.39 in (517.9 mm), 17.83 in (452.9 mm), 16.45 in (417.8 mm), 16.33 in (414.8 mm), 16.27 in (413.3 mm), 16.15 in (410.2 mm), 12.85 in (326.4 mm)
All heights on drawing2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm)
Diametral pitch4
Number of teeth53
Pitch diameter13.25 in
Pressure angle20°
MaterialSteel, 50Mn
Approx. weight63.6 lb (29 kg)

Dimensions from our 3D model; confirm against the certified drawing. Load ratings and life calculations available from our engineers.

Crosses to

KaydonRK6-16N1Z*

Interchange based on published dimensions; our engineers confirm fit before quoting.

21 Series slewing ring

Get this bearing

Standard lead time 14–16 weeks; expediting available for an additional charge. Pricing quoted within 1–2 business days. Matching pinions available.

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