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Potesta & Company
SlewPro
21 SeriesInternal gearTorriani 1.505.20.00.C

21N.0414.20.001 Slewing Ring Bearing

21 Series slewing ring bearing, internal gear, 516 mm OD × 325 mm ID. Interchangeable with Torriani 1.505.20.00.C.

Specifications

SlewPro part number21N.0414.20.001
Series21 Series
Bearing designFour-point contact, single-row ball
GearInternal gear
Raceway diameter414 mm (16.30 in)
Outside diameter515.9 mm (20.31 in)
Inside diameter325.1 mm (12.80 in)
Overall height55.9 mm (2.20 in)
Outer ring height47.5 mm (1.87 in)
Inner ring height44.4 mm (1.75 in)
Outer ring bore415.5 mm (16.36 in)
Inner ring outside diameter412.5 mm (16.24 in)
All diameters on drawing20.31 in (515.9 mm), 17.93 in (455.4 mm), 16.36 in (415.5 mm), 16.24 in (412.5 mm), 13.78 in (350.0 mm), 12.80 in (325.1 mm)
All heights on drawing2.20 in (55.9 mm), 1.87 in (47.5 mm), 1.75 in (44.4 mm), 1.57 in (39.9 mm), 0.47 in (11.9 mm)
Gear module5
Number of teeth67
Pitch diameter13.189 mm
Pressure angle20°
MaterialSteel, 50Mn
Approx. weight75.1 lb (34 kg)

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

Crosses to

Torriani1.505.20.00.C

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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