Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesInternal gearRotek L6-33N9ZKaydon RK6-33N1Z

21N.0844.19.000 Slewing Ring Bearing

21 Series slewing ring bearing, internal gear, 948 mm OD × 740 mm ID. Interchangeable with Rotek L6-33N9Z, Kaydon RK6-33N1Z.

Specifications

SlewPro part number21N.0844.19.000
Series21 Series
Bearing designFour-point contact, single-row ball
GearInternal gear
Raceway diameter844 mm (33.23 in)
Outside diameter947.9 mm (37.32 in)
Inside diameter739.6 mm (29.12 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 bore844.5 mm (33.25 in)
Inner ring outside diameter843.5 mm (33.21 in)
All diameters on drawing37.32 in (947.9 mm), 34.76 in (882.9 mm), 33.29 in (845.6 mm), 33.25 in (844.5 mm), 33.21 in (843.5 mm), 33.17 in (842.5 mm), 29.12 in (739.6 mm)
All heights on drawing2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm)
Diametral pitch3
Number of teeth89
Pitch diameter29.67 in
Pressure angle20°
MaterialSteel, 50Mn
Approx. weight138 lb (63 kg)

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

Crosses to

KaydonRK6-33N1Z
RotekL6-33N9Z

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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