Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesPlain (no gear)Rollix Defontaine 23 0641 01 ZZ 00

21P.0641.20.000 Slewing Ring Bearing

21 Series slewing ring bearing, plain (no gear), 748 mm OD × 534 mm ID. Interchangeable with Rollix Defontaine 23 0641 01 ZZ 00.

Specifications

SlewPro part number21P.0641.20.000
Series21 Series
Bearing designFour-point contact, single-row ball
GearPlain (no gear)
Raceway diameter641 mm (25.24 in)
Outside diameter748 mm (29.45 in)
Inside diameter533.9 mm (21.02 in)
Overall height55.9 mm (2.20 in)
Outer ring height46 mm (1.81 in)
Inner ring height46 mm (1.81 in)
Outer ring bore643.6 mm (25.34 in)
Inner ring outside diameter638.6 mm (25.14 in)
All diameters on drawing29.45 in (748.0 mm), 26.93 in (684.0 mm), 25.34 in (643.6 mm), 25.14 in (638.6 mm), 23.54 in (597.9 mm), 21.02 in (533.9 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)
Approx. weight89.0 lb (40 kg)

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

Crosses to

Rollix Defontaine23 0641 01 ZZ 00

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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