Ball Bearing Disc Springs & Washers (Plain, Slotted and Multi Wave)

IIS manufactures all types of Ball bearing Disc Springs both plain and slotted & Preloading Bearing Washers. Ball-Bearing Disc Springs are used with radial Ball bearings to minimize vibration and shaft deflection. Proper preloading will increase bearing rigidity and eliminate excessive wear & tear and running noise.

Advantages of Ball Bearing Disc Springs Preloading Washers :

1. Significant increase or decrease in applied force even with small variation in deflection.
2. Backlash compensation & regressive curves help reduce preload variations changes
3. Very low force characteristics with very large deflection range
4. Multiplication of force by stacking of two or more in parallel.
5. Available in all size to accommodate all Ball bearing sizes.
6. Elimination of noise and play in Ball Bearings.
7. Round shape ensures equal distribution of load around the bearing ring.

Application of Preloaded Bearing Washers in Electric motors helps to reduce operating noise. The preload force remains practically constant even when there is axial displacement of the bearing as a result of thermal expansion.

If preload is primarily to protect the bearing from vibration damage when stationary, then greater preload is required

Plain Ball Bearing Disc Springs

Ball Baring 
Ref. No.		 Diameter* De (mm) Di (mm) Thickness t (mm) Unloaded height I0 (mm) L0.50 (mm) F 0.50 (N) L0.75 (mm) F0.75 (N)
623        9.8 6.2 0.2 0.4 0.10 19 0.15 24
624     12.8 7.2 0.25 0.5 0.12 24 0.19 29
      15.8
 8.2 0.25 0.75 0.5 17 0.37 20
625 634   15.8 8.2 0.25 0.55 0.15 20

0.22

 23
626 635   18.8 9.2 0.3 0.65 0.17 26 0.26 31
607     18.8 10.2 0.35 0.7 0.17 40 0.26 51
608 627   21.8 12.3 0.35 0.75 0.20 38 0.30 46
609     23.7 14.3 0.4 0.9 0.25 69 0.37 80
6000 629   25.7 14.3 0.4 0.9 0.25 54 0.37 64
6001     27.7 17.3 0.4 1.0 0.3 73 0.45 80
6200     29.7 17.3 0.4 1.1 0.35 80 0.52 82
6002 6201   31.7 20.4 0.35 1.55 0.95 27 0.65 33
6300     34.6 20.4 0.4 1.1 0.35 60 0.52 61
6003 6202   34.6 22.4 0.5 1.2 0.35 106 0.52 119
6301     36.6 20.4 0.5 1.3 0.40 103 0.6 111
6203     39.6 25.5 0.5

1.3

 0.40 103 0.6 111
6004 6302   41.6 25.5 0.5 1.4 0.45 113 0.67 114
6005 6204 6303 46.5 30.5 0.6 1.5 0.45 140 0.67 155
6205 6304   51.5 35.5 0.6 1.5

0.45

 124 0.67 135
6006     54.5 40.5 0.6 1.5

0.45

 127 0.67 140
6007 6206 6305 61.5 40.5 0.7 1.8

0.55

 164 0.82 186
6008     67.5

50.5

 0.7 1.7

0.50

 143 0.75 160
6306     71.5 45.5 0.7 2.1 0.7 190 1.05 185
6207     71.5 50.5 0.7 2.1 0.7 223 1.05 217
6048 6240 6334 74.5 55.5 0.6 2.9 1.75 88 1.17 91
6009     74.5 55.5 0.8 1.9 0.55 186 0.82 212
6307     79.5 50.5 0.8 2.3 0.75 228 1.12 228
6010 6208   79.5 55.5 0.8 2.3 0.75 264 1.12 264
6209     84.5 60.5 0.9 2.5 0.8 352 1.2 357
6308     89.5 60.5 0.9 2.5 0.8 284 1.2 288
6011 6210   89.5 65.5 0.9 2.5 0.8 330 1.2 333
6012     94.5 75.5 1 2.2 0.6 272 0.9 325
6309     99 65.5 1 2.6 0.8 274 1.2 293
6013 6211   99 70.5 1 2.6 0.8 312 1.2 333
6310     109 70.5 1.25 2.7 0.73 294 1.09 356
6014 6212   109 75.5 1.25 2.7 0.73 327 1.09 394
6015     114 90.5 1.25 2.45 0.6 311 0.9 396
6311     119 75.5 1.25 2.8 0.78 270 1.16 319
6213     119 85.5 1.25 2.8 0.78 331 1.16 391
6016 6214   124 90.5 1.25 3 0.88 392 1.31 441
6312     129 85.5 1.25 3.2 0.98 375 1.46 402
6017 6215   129 95.5 1.25 3.2 0.98 328 1.46 441
6313     139 90.5 1.25 3.25 1 329 1.5 353
6018 6216   139 101 1.25 3.25 1 398 1.5 427
6314     149 95.5 1.5 3.2 0.85 312 1.28 380
6020 6217   149 106 1.5 3.2 0.85 368 1.28 448
6315     159 101 1.5 3.5 1 356 1.5 409
6021 6218   159 111 1.5 3.5 1 415 1.5 477
6316     169 111 1.5 3.8 1.1 432 1.73 472
6022 6219   169 121 1.5 3.8 1.15 497 1.73 542
6317     179 121 2 4.2 1.1 702 1.65 861
6024 6220   179 126 2 4.2 1.1 761 1.65 934
6318     189 121 2 4.3 1.15 628 1.73 760
6221     189 131 2 4.3 1.15 702 1.73 849
6319     198 131 2 4.5 1.25 691 1.88

813
6026 6222   198 141 2 4.5 1.25 779 1.88

917
6224 6320   213 151 2.25 4.5 1.12 746 1.69 941
6030 6321   223 161 2.25 4.6 1.17 747 1.76 933
6226     228 161 2.25 4.95 1.35 864 2.02 1030
6322     238 161 2.25 5.25 1.5 886 2.25 1020
6228     248 171 2.5 5 1.25 795 1.88 1000
6324     258 171 2.5 5.5 1.5 928 2.25 1108
6230     268 181 2.5 5.7 1.6 990 2.4 1160
6326     268 181 2.5 6 1.75 1020 2.63 1160
6232     288 191 2.75 5.75 1.5 931 2.25 1150
6328     298 191 2.75 6.35 1.8 1130 2.7 1310
6234     308 202 3 6.1 1.55 1050 2.33 1300
6236 6330   318 212 3 6.2

1.6

 1060 2.4 1300
6238 6332   338 232 3 6.6 1.8 1180 2.7 1410
6240 6334   358 242 3 7.2 2.1 1350 3.15 1530

Slotted Ball Bearing Disc Springs

Ball Baring 
designation No.		 Diameter* De (mm) Di (mm) Thickness t (mm) Unloaded height I0 (mm) L0.50 (mm) F 0.50 (N) L0.75 (mm) F0.75 (N)
623        9.8 6.2 0.15 0.6 0.23 9 0.35 13
624     12.8 7.2 0.2 0.65 0.23 16 0.35 18
625 634   15.8 8.2 0.25 0.75 0.25 17

0.4

 20
626 635   18.8 9.2

0.25

 1 0.38 17 0.55 20
607     18.8 10.2 0.25 1.05 0.4 19 0.6 24
608 627   21.8 12.3 0.25 1.25 0.5 19 0.75 24
609     23.7 14.3 0.3 1.3 0.5 21 0.75 25
6000 629   25.7 14.3 0.3 1.4 0.55 24 0.8 28
6001     27.7 17.3 0.35 1.45 0.55 25 0.8 31
6200     29.7 17.3 0.35 1.55 0.6 26 0.9 32
6002 6201   31.7 20.4 0.35 1.55 0.6 27 0.9 33
6300     34.6 20.4 0.35 1.65 0.65 27 1 32
6003 6202   34.6 22.4 0.35 1.55 0.6 27 0.9 32
6301     36.6 20.4 0.4 1.9 0.75 31 1.1 35
6203     39.6 25.5 0.4

1.9

 0.75 33 1.1 37
6004 6302   41.6 25.5 0.45 2.05 0.80 34 1.2 39
6005 6204 6303 46.5 30.5 0.45 2.05 0.80 39 1.2 44
6205 6304   51.5 35.5 0.45 2.1 0.85 42 1.25 47
6006     54.5 40.5 0.45 2.15

0.85

 42 1.3 53
6007 6206 6305 61.5 40.5 0.55 2.55

1.00

 49 1.5 54
6008     67.5

50.5

 0.5 2.6

1.05

 76 1.6 78
6306     71.5 45.5 0.6 2.9 1.15 71 1.7 74
6207     71.5 50.5 0.6 2.9 1.15 127 1.7 127
6009     74.5 55.5 0.6 2.9 1.15 88 1.7 91
6307     79.5 50.5 0.7 3.1 1.2 78 1.8 78
6308     89.5 60.5 0.8 3.3 1.25 90 1.9 104
6011 6210   89.5 65.5 0.8 3.4 1.3 180 1.95 189
6012     94.5 75.5

0.8

 3.45 1.35 191 2 206

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