Radial spherical plain bearings

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Radial spherical plain bearings have an inner ring with a sphered convex outside surface and an outer ring with a correspondingly sphered but concave inside surface. Their design makes them particularly suitable for bearing arrangements where alignment movements between shaft and housing have to be accommodated, or where oscillating or recurrent tilting or slewing movements must be permitted at relatively slow sliding speeds. They are available with different sliding contact surface combinations, i.e. the sliding surfaces of inner and outer rings are made from different materials. There are two main groups: spherical plain bearings requiring maintenance (steel-on-steel) and maintenance-free spherical plain bearings.

The radial spherical plain bearings requiring maintenance (steel-on-steel) have hardened sliding contact surface on both rings. The surfaces are treated with molybdenum disulphide (MoS2) lubrication and a phosphate coating. They have both wear and corrosion resistant characteristics. Bearings with this sliding contact surface combination require regular relubrication. The high strength of the sliding contact surfaces makes these bearings especially suitable for bearing arrangements where heavy loads of alternating direction, shock loads or heavy static loads have to be accommodated.

Bearing Number	Bore Dia	Outer DIa	Width	Size
63.5 mm x 100.013 mm x 55.55 mm skf GEZ 208 ESX-2LS Radial spherical plain bearings	22.225 mm	84.5 kN	127 mm	74.612 mm
70 mm x 105 mm x 65 mm skf GEM 70 ESL-2LS Radial spherical plain bearings	1.2 kg	40 mm	1.1 mm	160 mm
76.2 mm x 120.65 mm x 66.675 mm skf GEZ 300 ESX-2LS Radial spherical plain bearings	24 mm	22000 r/min	20000 r/min	0.0065 kg
4 mm x 12 mm x 5 mm skf GE 4 C Radial spherical plain bearings	5400 N	42.0000 mm	15.000 mm	12000 rpm
480 mm x 650 mm x 230 mm skf GEC 480 TXA-2RS Radial spherical plain bearings	29.2 kN	0.056 kg	65 mm	9.3 kN
114.3 mm x 177.8 mm x 100 mm skf GEZ 408 ES-2RS Radial spherical plain bearings	113 mm	1 mm	125 mm	400 kN
100 mm x 150 mm x 70 mm skf GE 100 TXG3A-2LS Radial spherical plain bearings	M 10	100 mm	40 mm	23 mm
50 mm x 75 mm x 35 mm skf GE 50 ES-2RS Radial spherical plain bearings	71.438 mm	21.6 kN	5300 r/min	85 mm
63.5 mm x 111.125 mm x 64.643 mm skf GEZH 208 ES-2LS Radial spherical plain bearings	79.375 mm	401.637 mm	113 kN	SR-38-32
25 mm x 42 mm x 25 mm skf GEG 25 ES Radial spherical plain bearings	130.0000 mm	31.00 mm	2.00 mm	6000 rpm
31.75 mm x 50.8 mm x 47.625 mm skf GEZM 104 ES Radial spherical plain bearings	45 mm	55 mm	106 mm	5000 r/min
57.15 mm x 100.013 mm x 58.877 mm skf GEZH 204 ES-2LS Radial spherical plain bearings	SAF 028 KA	2 x 1-8 UNC	379.89 g	72.619 mm