Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesExternal gearSKF RKS.21 0941Rollix Defontaine 21-0941-01 ZZ 00

21E.0941.21.000 Slewing Ring Bearing

21 Series slewing ring bearing, external gear, 1,046 mm OD × 834 mm ID. Interchangeable with SKF RKS.21 0941, Rollix Defontaine 21-0941-01 ZZ 00.

Specifications

SlewPro part number21E.0941.21.000
Series21 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter941 mm (37.05 in)
Outside diameter1,046 mm (41.18 in)
Inside diameter833.9 mm (32.83 in)
Overall height55.9 mm (2.20 in)
Outer ring height46 mm (1.81 in)
Inner ring height46 mm (1.81 in)
Outer ring bore942.6 mm (37.11 in)
Inner ring outside diameter939.5 mm (36.99 in)
All diameters on drawing41.18 in (1046.0 mm), 37.11 in (942.6 mm), 36.99 in (939.5 mm), 35.35 in (897.9 mm), 32.83 in (833.9 mm)
All heights on drawing2.20 in (55.9 mm), 1.81 in (46.0 mm), 1.10 in (27.9 mm), 0.47 in (11.9 mm)
Gear module8
Number of teeth129
Pitch diameter40.63 mm
Pressure angle20°
MaterialSteel, 50Mn
Approx. weight170 lb (77 kg)

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

Crosses to

Rollix Defontaine21-0941-01 ZZ 00
SKFRKS.21 0941

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

21 Series slewing ring

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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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