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
35 mm x 55 mm x 25 mm skf GE 35 CJ2 Radial spherical plain bearings	90mm	50mm	23.2	Steel
60 mm x 90 mm x 44 mm skf GE 60 ES-2LS Radial spherical plain bearings	150 mm	12 mm	193.3 mm	1.25 kg
80 mm x 130 mm x 75 mm skf GEH 80 ES-2RS Radial spherical plain bearings	H7	30 mm	0.1	h8
88.9 mm x 139.7 mm x 133.35 mm skf GEZM 308 ES-2RS Radial spherical plain bearings	260mm	Plastic	182	0.02 KGS
300 mm x 430 mm x 165 mm skf GE 300 ESL-2LS Radial spherical plain bearings	207	35 mm	125629	5759 lb
95.25 mm x 149.225 mm x 142.875 mm skf GEZM 312 ES-2LS Radial spherical plain bearings	0.6 mm	94 mm	28 mm	24 mm
180 mm x 210 mm x 115 mm skf GEH 120 ESX-2LS Radial spherical plain bearings	Round	6.5000 in	Black Oxide Coated	Cast Iron
114.3 mm x 177.8 mm x 171.45 mm skf GEZM 408 ES-2LS Radial spherical plain bearings	5.9090 in	Uncoated	Class 2	748S, 749S, 750, 749
670 mm x 900 mm x 308 mm skf GEC 670 FBAS Radial spherical plain bearings	1769 lb	7500 RPM	Set Screw	205
140 mm x 210 mm x 90 mm skf GE 140 ES-2LS Radial spherical plain bearings	053893672014	Class 2	5.7500 in	12.0000 in
70 mm x 120 mm x 70 mm skf GEH 70 TXG3A-2LS Radial spherical plain bearings	Open Type	Standard	Steel	sf629-zen
76.2 mm x 120.65 mm x 114.3 mm skf GEZM 300 ES-2RS Radial spherical plain bearings	4-31/64 in	Set Screw	0.2500 in	1.5000 in