Genuine product

6311 ZZ SKF Bearing

SKF · Deep groove ball bearing · Metal shields on both sides · 55×120×29 mm

Deep groove ball Double shield In stock

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6311 ZZ SKF is a deep groove ball bearing with a 55 mm bore, 120 mm outside diameter and 29 mm width, shielded on both sides with metal shields.

Deep groove ball bearing with shields on both sides, SKF Explorer class; the code on the box is 6311-2Z.

Dimensions

Bore (d)55 mm

Outside diameter (D)120 mm

Width (B)29 mm

Chamfer (r min)2 mm

Weight≈ 1.39 kg

Balls9 × ≈19.18 mm

Load ratings and speed

Dynamic load rating C74.1 kN

Static load rating C₀45 kN

Limiting speed≈ 6,300 rpm

Reference speed (grease)≈ 12,000 rpm

Metal shields on both sides, greased for life. Being non-contact, it runs faster than a sealed bearing. For dry and dusty conditions.

Where it is used

Electric motor shaft bearing (approx. 45–55 kW, 180–200 frame motors) Crushing and screening plant rotor and drive shaft auxiliary bearings Cement, mining and aggregate belt conveyor drum Elevator machine room drive unit and deflector pulley Bearing for rolls in textile and paper machines Heavy-duty gear reducer and gearbox shaft Marine auxiliary machinery, deck crane A common, general-purpose industrial size

6311-2Z (ZZ) – all our products in this size (2)

6311 ZZ SKF Bearing

Dimensions

Load ratings and speed

Where it is used

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