Spherical Plain Bearings

Spherical Plain Bearings

Spherical plain bearings

Spherical Plain Bearings

Spherical plain bearings consist of an outer ring with a spherical inner surface and an inner ring with a spherical outer surface. These bearings are designed for machinery that has low concentricity requirements and operates under conditions with low-speed swaying, tilting, or rotary motion.

There are two primary types:

  • Steel-on-Steel Radial Spherical Plain Bearings: These use steel for both the inner and outer rings.
  • Self-Lubricating Spherical Plain Bearings: These bearings feature lubrication built into the bearing structure, reducing the need for external lubrication systems.
Applications:
  • Suitable for machinery where there are large forces on the working surface with low speed or oscillating movements.

Designation Principal dimensions Basic load ratings Limiting speed
Dynamic Static Grease Oil
d D B Cr Cor RPM RPM
mm mm mm KN KN r/min r/min
SIZP4S 4.83 ㅡ 7.92 3.4 4.6 ㅡ ㅡ
SIZJ4 4.83 ㅡ 7.92 3.6 6.8 ㅡ ㅡ
S15E 5 ㅡ 6 3.4 8.1 ㅡ ㅡ
SIBP5S 5 ㅡ 8 3.3 4.1 ㅡ ㅡ
S15C 5 ㅡ 6 3.6 8.1 ㅡ ㅡ
SIJK5C 5 ㅡ 8 3.6 4.6 ㅡ ㅡ
S18E 8 ㅡ 8 5.5 12.9 ㅡ ㅡ
SIZP9S 9.53 ㅡ 12.7 9.4 10 ㅡ ㅡ
SIJK10C 10 ㅡ 14 12 15 ㅡ ㅡ
S112E 12 ㅡ 10 10 24.5 ㅡ ㅡ
S112C 12 ㅡ 10 11 24.5 ㅡ ㅡ
SIZJ12 12.7 ㅡ 15.88 18 28 ㅡ ㅡ
S115ES 15 ㅡ 12 16 36 ㅡ ㅡ
SIZP15S 15.88 ㅡ 19.05 20 21 ㅡ ㅡ
SIBP16S 16 ㅡ 21 21 25 ㅡ ㅡ
S117C 17 ㅡ 14 22 45 ㅡ ㅡ
GEWZ19ES 19.05 31.75 28.575 31 95 ㅡ ㅡ
GEZ19ET-2RS 19.05 31.75 16.662 45 92 ㅡ ㅡ
GEZ19ES 19.05 31.75 16.662 31 95 ㅡ ㅡ
GEFZ19S 19.05 36.51 19.05 28 141 ㅡ ㅡ
GACZ19S 19.05 31.75 10.41 16 83 ㅡ ㅡ
SIZJ9 19.05 ㅡ 22.23 34 44 ㅡ ㅡ
GE20XS/K 20 32 16 33 166 ㅡ ㅡ
GEEW20ES 20 35 20 30 146 ㅡ ㅡ
GEEM20ES-2RS 20 35 24 30 146 ㅡ ㅡ
GEBK20S 20 46 25 31 73 ㅡ ㅡ
GE20C 20 35 16 31 78 ㅡ ㅡ
GEG20C 20 42 25 51 127 ㅡ ㅡ
GEG20ET-2RS 20 42 25 68 137 ㅡ ㅡ
GEF20ES 20 32 16 33 166 ㅡ ㅡ
GE20ES 20 35 16 30 146 ㅡ ㅡ
GEG20ES 20 42 25 48 240 ㅡ ㅡ
GX20S 20 55 14.5 84 425 ㅡ ㅡ
GX20T 20 55 14.5 127 255 ㅡ ㅡ
SIBP22S 22 ㅡ 28 38 43 ㅡ ㅡ
SIJK22C 22 ㅡ 28 42 50 ㅡ ㅡ
GEFZ22S 22.23 39.69 22.23 37 186 ㅡ ㅡ
GEBK25S 25 56 31 47 110 ㅡ ㅡ
GAC25S 25 47 15 50 250 ㅡ ㅡ
GAC25T 25 47 15 75 149 ㅡ ㅡ
GEFZ25S 25.4 44.45 25.4 49 245 ㅡ ㅡ
SIZP25S 25.4 ㅡ 34.93 60 101 ㅡ ㅡ
GEBK30S 30 66 37 63 148 ㅡ ㅡ
GE30C 30 47 22 65 166 ㅡ ㅡ
GEG30C 30 55 32 83 212 ㅡ ㅡ
SIBP30S 30 ㅡ 37 63 86 ㅡ ㅡ
S130C 30 ㅡ 22 65 110 ㅡ ㅡ
SIJK30C 30 ㅡ 37 73 77 ㅡ ㅡ
GEG31ES 31.75 61.913 35.306 125 375 ㅡ ㅡ
GEZ34ES 34.925 55.563 30.15 102 310 ㅡ ㅡ
S135ET-2RS 35 ㅡ 25 112 146 ㅡ ㅡ
GEEM40ES-2RS 40 62 38 99 495 ㅡ ㅡ
S140ES 40 ㅡ 28 99 180 ㅡ ㅡ
GACZ44S 44.45 71.438 24.89 99 499 ㅡ ㅡ
GE45ES 45 68 32 127 637 ㅡ ㅡ
GAC45S 45 75 20 108 540 ㅡ ㅡ
GX45S 45 120 31 486 2470 ㅡ ㅡ
S145ET-2RS 45 ㅡ 32 180 240 ㅡ ㅡ
GAC50T 50 80 20 185 370 ㅡ ㅡ
GX50T 50 130 33 840 1670 ㅡ ㅡ
GEG50ES 50.8 90.488 52.578 280 850 ㅡ ㅡ
GE60ES 60 90 44 245 1220 ㅡ ㅡ
S160ET-2RS 60 ㅡ 44 345 450 ㅡ ㅡ
GEEW63ES 63 95 63 253 1260 ㅡ ㅡ
GEF65ES 65 105 55 375 1870 ㅡ ㅡ
GEWZ69ES 69.85 111.125 104.775 415 1250 ㅡ ㅡ
GAC70S 70 110 25 206 1030 ㅡ ㅡ
GEEM80ES-2RS 80 120 74 400 2000 ㅡ ㅡ
GEG80ES 80 130 75 488 2440 ㅡ ㅡ
S180ES 80 ㅡ 55 400 750 ㅡ ㅡ
S180ET-2RS 80 ㅡ 55 567 750 ㅡ ㅡ
GACZ82S 82.55 130.175 47.24 364 1820 ㅡ ㅡ
GAC85T 85 130 29 426 851 ㅡ ㅡ
GEZ88ES 88.9 139.7 77.775 680 2040 ㅡ ㅡ
GE90XS/K 90 140 76 718 3590 ㅡ ㅡ
GEG95ES 95.25 158.75 94.945 900 2650 ㅡ ㅡ
GEH100XT 100 150 71 1080 2170 ㅡ ㅡ
GEH100HC 100 150 71 810 1350 ㅡ ㅡ
GEH100HT 100 150 71 860 1750 ㅡ ㅡ
GEF100ES 100 160 88 956 4780 ㅡ ㅡ
GAC100S 100 150 32 384 1923 ㅡ ㅡ
GX100S 100 210 51 1300 6470 ㅡ ㅡ
GACZ101S 101.6 158.75 58.42 566 2830 ㅡ ㅡ
GEZ107ES 107.95 168.275 94.463 1000 3000 ㅡ ㅡ
GE120ES 120 180 85 950 4750 ㅡ ㅡ
GAC120T 120 180 38 820 1630 ㅡ ㅡ
GX120T 120 230 53.5 2170 4560 ㅡ ㅡ
GEG139ES 139.7 222.25 125.73 1730 5200 ㅡ ㅡ
GEG140ES 140 230 130 1360 6800 ㅡ ㅡ
GE150XS/K 150 220 120 1820 9140 ㅡ ㅡ
GEF150ES 150 220 120 1820 9140 ㅡ ㅡ
GAC150S 150 225 48 850 4270 ㅡ ㅡ
GEWZ152ES 152.4 222.25 209.55 1730 5200 ㅡ ㅡ
GEZ152ET-2RS 152.4 222.25 120.65 2600 5240 ㅡ ㅡ
GEZ152ES 152.4 222.25 120.65 1730 5200 ㅡ ㅡ
GACZ152S 152.4 222.25 78.74 1080 5400 ㅡ ㅡ
GAC160T 160 240 51 1445 2990 ㅡ ㅡ
GEEW200ES 200 290 200 2120 10600 ㅡ ㅡ
GEG200XT-2RS 200 320 165 3300 6550 ㅡ ㅡ
GEH200XT 200 290 140 4180 8370 ㅡ ㅡ
GEH200HC 200 290 140 3130 5500 ㅡ ㅡ
GEH200HT 200 290 140 3340 6740 ㅡ ㅡ
GEG200ES 200 320 165 2320 11600 ㅡ ㅡ
GE200ES 200 290 130 2120 10600 ㅡ ㅡ
GAC200S 200 310 70 1680 8420 ㅡ ㅡ
GAC200T 200 310 70 2520 5040 ㅡ ㅡ
GX200S 200 340 80 2070 15280 ㅡ ㅡ
GX200T 200 340 80 4780 9150 ㅡ ㅡ
Designation Principal dimensions
d D
mm mm
SIZP4S 4.83 ㅡ
SIZJ4 4.83 ㅡ
S15E 5 ㅡ
SIBP5S 5 ㅡ
S15C 5 ㅡ
SIJK5C 5 ㅡ
S18E 8 ㅡ
SIZP9S 9.53 ㅡ
SIJK10C 10 ㅡ
S112E 12 ㅡ
S112C 12 ㅡ
SIZJ12 12.7 ㅡ
S115ES 15 ㅡ
SIZP15S 15.88 ㅡ
SIBP16S 16 ㅡ
S117C 17 ㅡ
GEWZ19ES 19.05 31.75
GEZ19ET-2RS 19.05 31.75
GEZ19ES 19.05 31.75
GEFZ19S 19.05 36.51
GACZ19S 19.05 31.75
SIZJ9 19.05 ㅡ
GE20XS/K 20 32
GEEW20ES 20 35
GEEM20ES-2RS 20 35
GEBK20S 20 46
GE20C 20 35
GEG20C 20 42
GEG20ET-2RS 20 42
GEF20ES 20 32
GE20ES 20 35
GEG20ES 20 42
GX20S 20 55
GX20T 20 55
SIBP22S 22 ㅡ
SIJK22C 22 ㅡ
GEFZ22S 22.23 39.69
GEBK25S 25 56
GAC25S 25 47
GAC25T 25 47
GEFZ25S 25.4 44.45
SIZP25S 25.4 ㅡ
GEBK30S 30 66
GE30C 30 47
GEG30C 30 55
SIBP30S 30 ㅡ
S130C 30 ㅡ
SIJK30C 30 ㅡ
GEG31ES 31.75 61.913
GEZ34ES 34.925 55.563
S135ET-2RS 35 ㅡ
GEEM40ES-2RS 40 62
S140ES 40 ㅡ
GACZ44S 44.45 71.438
GE45ES 45 68
GAC45S 45 75
GX45S 45 120
S145ET-2RS 45 ㅡ
GAC50T 50 80
GX50T 50 130
GEG50ES 50.8 90.488
GE60ES 60 90
S160ET-2RS 60 ㅡ
GEEW63ES 63 95
GEF65ES 65 105
GEWZ69ES 69.85 111.125
GAC70S 70 110
GEEM80ES-2RS 80 120
GEG80ES 80 130
S180ES 80 ㅡ
S180ET-2RS 80 ㅡ
GACZ82S 82.55 130.175
GAC85T 85 130
GEZ88ES 88.9 139.7
GE90XS/K 90 140
GEG95ES 95.25 158.75
GEH100XT 100 150
GEH100HC 100 150
GEH100HT 100 150
GEF100ES 100 160
GAC100S 100 150
GX100S 100 210
GACZ101S 101.6 158.75
GEZ107ES 107.95 168.275
GE120ES 120 180
GAC120T 120 180
GX120T 120 230
GEG139ES 139.7 222.25
GEG140ES 140 230
GE150XS/K 150 220
GEF150ES 150 220
GAC150S 150 225
GEWZ152ES 152.4 222.25
GEZ152ET-2RS 152.4 222.25
GEZ152ES 152.4 222.25
GACZ152S 152.4 222.25
GAC160T 160 240
GEEW200ES 200 290
GEG200XT-2RS 200 320
GEH200XT 200 290
GEH200HC 200 290
GEH200HT 200 290
GEG200ES 200 320
GE200ES 200 290
GAC200S 200 310
GAC200T 200 310
GX200S 200 340
GX200T 200 340