Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesPlain (no gear)

21P.0411.20.001 Slewing Ring Bearing

21 Series slewing ring bearing, plain (no gear), 518 mm OD × 304 mm ID.

Specifications

SlewPro part number21P.0411.20.001
Series21 Series
Bearing designFour-point contact, single-row ball
GearPlain (no gear)
Raceway diameter411 mm (16.18 in)
Outside diameter517.9 mm (20.39 in)
Inside diameter304 mm (11.97 in)
Overall height55.9 mm (2.20 in)
Outer ring height46 mm (1.81 in)
Inner ring height46 mm (1.81 in)
Outer ring bore412 mm (16.22 in)
Inner ring outside diameter410 mm (16.14 in)
All diameters on drawing20.39 in (517.9 mm), 17.87 in (453.9 mm), 16.22 in (412.0 mm), 16.14 in (410.0 mm), 14.49 in (368.0 mm), 11.97 in (304.0 mm)
All heights on drawing2.20 in (55.9 mm), 1.81 in (46.0 mm), 0.47 in (11.9 mm)
Approx. weight58.0 lb (26 kg)

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

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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