INA needle roller bearings with ribs are single or double row units comprising machined outer rings with ribs, needle roller and cage assemblies and removable inner rings.
INA needle roller bearings with ribs are X-life bearings. These INA bearings have optimised raceway surfaces. This gives higher load carrying capacity and longer rating life.
INA needle roller bearings without inner ring
INA needle bearings without inner ring have particularly compact radial dimensions. However, they require a shaft raceway that is hardened and ground.
The bearings are of a single row design, RNA69 is of a double row design from Fw ≧ 40 mm.
INA needle roller bearingswith inner ring
These INA bearings with an inner ring are used if the shaft is not configured as a rolling bearing raceway. The bearings are of a single row design, NA69 is of a double row design from d ≧ 32 mm.
Series RNA49..-RSR and NA49..-RSR are sealed on one side. The designs RNA49..-2RSR and NA49..-2RSR have contact seals on both sides.
The standard inner ring allows axial displacement within the values “s” stated in the dimension tables. Where larger displacements occur, the standard ring can be replaced by a wider inner ring IR.
These INA bearings can be sealed against external influences using sealing rings of series G, GR and SD in combination with wider inner rings IR. The sealing rings and inner rings are matched to the needle roller bearings. The outer surface of the inner rings can be used as the sliding surface for seal lips.
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INA RNA4905 bearing
30mm x 42mm x17mm
INA NA4901-XL bearing
12mm x 24mm x 13mm
INA NA4904-XL bearing
20mm x 37mm x 17mm
INA NA49/22-XL bearing
22mm x 39mm x 17mm
INA NA4905-XL bearing
25mm x 42mm x 17mm
INA NA4824-XL bearing
120mm x 150mm x 30mm
INA NA6904-XL bearing
20mm x 37mm x 30mm
