At 25x62x17 mm and a unit weight of 0.235 kg, the installation envelope is fixed; further technical details are held in the specification table. This variant features a contact seal and stainless steel. For cleaned positions with no relubrication foreseen — in food, beverage and packaging plant — this combination forms the most closed version of this series.
This version stages the protection in two steps that behave differently over time. The contact seal on both sides lays an elastomeric lip against the inner ring and thereby shuts splash water, cleaning agents and fine dust out of the rolling chamber — an effect that is present from the outset but declines with the ageing and wear of the lip, and which is bought with a load-independent frictional torque and a permissible speed lower than that of open versions.
The stainless steel of the rings and balls behaves the other way round: its passive layer is retained over the operating period and protects the raceways precisely when the first step has lost effect or a cleaning cycle has carried liquid past the lip. This staging is the actual reason for the combination; neither constituent replaces the other.
In the design three resistances are to be assessed separately, because they belong to different material groups: that of the ring material against the medium, that of the sealing material against cleaning agent and temperature, and that of the enclosed grease charge, which is dimensioned for the service life and cannot be renewed. Chloride-bearing and acidic environments are to be considered separately here and not inferred from the material group alone.
Mechanically, the lower attainable hardness of the stainless material has to be taken into account, which shows in reduced load ratings. Normal radial clearance is matched to one interference-fitted ring and a moderate temperature gradient; the frictional heat of the seal and the differing thermal expansion of the material enter into that consideration.
Contact seals on both sides (rubber lip seal) — Dimensional/form-fit equivalent — verify suffix-level details for critical applications. Matching suffixes are also listed by SKF (2RSH, 2RS1), NSK (DDU), NTN (LLU) and NACHI (2NSE).
ManufacturerFAG
Bearing typeDeep-groove ball bearings
Bore d25 mm
Outer Ø D62 mm
Width B17 mm
Dyn. load C17.2 kN(Catalogue value, not verified)
Stat. load C₀10.8 kN(Catalogue value, not verified)
Limiting speed7,500 min⁻¹(Catalogue value, not verified)
Weight0.235 kg
Sealscontact seals on both sides
Clearancenormal radial internal clearance
Cagepressed steel cage
Materialstainless steel
Tolerancetolerance class P0/PN (ABEC 1)
Bore typecylindrical bore
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FAG S6305-2RSR-HLC Kugellager (25x62x17)
— 25 x 62 x 17 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.
