Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesExternal gearINA VLA200544-N

21E.0544.19.002 Slewing Ring Bearing

21 Series slewing ring bearing, external gear, 640 mm OD × 434 mm ID. Interchangeable with INA VLA200544-N.

Specifications

SlewPro part number21E.0544.19.002
Series21 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter544 mm (21.42 in)
Outside diameter640.3 mm (25.21 in)
Inside diameter434.1 mm (17.09 in)
Overall height55.9 mm (2.20 in)
Outer ring height44.4 mm (1.75 in)
Inner ring height47.5 mm (1.87 in)
Outer ring bore545.6 mm (21.48 in)
Inner ring outside diameter542.5 mm (21.36 in)
All diameters on drawing25.21 in (640.3 mm), 21.48 in (545.6 mm), 21.42 in (544.1 mm), 21.36 in (542.5 mm), 19.78 in (502.4 mm), 17.09 in (434.1 mm)
All heights on drawing2.20 in (55.9 mm), 1.87 in (47.5 mm), 1.75 in (44.4 mm), 0.47 in (11.9 mm)
Gear module6
Number of teeth105
Pitch diameter24.803 mm
Pressure angle20°
Material50Mn
Approx. weight94.8 lb (43 kg)

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

Crosses to

INAVLA200544-N

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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