This SKF bearing measures 20x47x14 mm and weighs 0.103 kg; the specification table carries the supplementary technical details. This variant features increased radial clearance (C3). The purpose of this intermediate step is a trade-off, not a compromise made out of embarrassment: a substantial part of the barrier effect of a bearing lip at a fraction of its frictional torque.
The low-contact seal on both sides occupies the gap between a non-contacting and a contacting version, and its properties follow directly from that intermediate position. The elastomeric sealing body brings a lip up to the shoulder or groove of the inner ring, but with a light contact pressure: a considerable part of the ingress of dust and spray moisture is thereby prevented without accepting the load-independent frictional torque of a lip laid out for tightness.
The permissible speed and the warming of the position accordingly lie between the two neighbouring designs and are to be taken from the designation, because they cannot be derived from the design description alone. A further difference concerns the behaviour over time: a lightly pressed lip is subject to slower wear, so the barrier effect stays more uniform than in a heavily pressed version, whose effect is higher at the outset and declines with the operating hours.
For flushed or continuously wetted positions a contact version or an upstream seal remains the applicable choice. Increased clearance (C3) holds an allowance ready for the shares that consume the mounted clearance — interference fit, external temperature gradient and the small heat contribution of the lip — so that a residual clearance remains in the warm running state without preloading the rolling contact.
The grease charge is enclosed and dimensioned for the service life; relubrication is not foreseen. Through-hardened standard bearing steel sets the frame for hardness, dimensional accuracy and the catalogue ratings of the rings.
ManufacturerSKF
Bearing typeDeep-groove ball bearings
Bore d20 mm
Outer Ø D47 mm
Width B14 mm
Weight0.103 kg
Sealslow-friction seals on both sides
Clearanceradial internal clearance greater than normal
Cagepolyamide cage
Materialstandard bearing steel
Tolerancetolerance class P0/PN (ABEC 1)
Bore typecylindrical bore
€14.63/ pc
incl. VAT, plus shipping · price drops with quantity
In stock
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QtyUnit priceDisc.
1 – 4€14.63—
5 – 9€14.18−3 %
10 – 24€13.89−5 %
25 – 49€13.45−8 %
50 – 99€13.16−10 %
4 more for −3% volume discount
From 100 pcs: price and lead time on request – subject to review.
Total (1 pc)€14.63
SKF 6204-2RSLTN9/C3VT162 Kugellager (20x47x14)
— 20 x 47 x 14 mm
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Same dimensions means the same bearing type and matching main dimensions (d × D × B). Sealing, cage, internal clearance and execution (e.g. material, precision, grease fill) are encoded in the suffix and may differ — please check before ordering. Equivalent additionally means the same sealing, internal clearance and tolerance class; the cage and other suffix features (e.g. lubrication groove) may differ.
