Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesPlain (no gear)Rotek L6-25P9ZD

21P.0644.19.001 Slewing Ring Bearing

21 Series slewing ring bearing, plain (no gear), 748 mm OD × 534 mm ID. Interchangeable with Rotek L6-25P9ZD.

Specifications

SlewPro part number21P.0644.19.001
Series21 Series
Bearing designFour-point contact, single-row ball
GearPlain (no gear)
Raceway diameter644 mm (25.35 in)
Outside diameter748 mm (29.45 in)
Inside diameter533.9 mm (21.02 in)
Overall height55.9 mm (2.20 in)
Outer ring height45.5 mm (1.79 in)
Outer ring bore645.4 mm (25.41 in)
Inner ring outside diameter642.6 mm (25.30 in)
All diameters on drawing29.45 in (748.0 mm), 26.89 in (683.0 mm), 25.41 in (645.4 mm), 25.36 in (644.1 mm), 25.30 in (642.6 mm), 23.82 in (605.0 mm), 21.02 in (533.9 mm)
All heights on drawing2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm)
MaterialSteel, 50Mn
Approx. weight84.8 lb (38 kg)

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

Crosses to

RotekL6-25P9ZD

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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