Belleville Spring Washers

  Belleville Spring Washers, also known as Conical or Disc spring washers, provide the greatest load bearing capacity for their size. They compensate for joint expansion and contraction, spans holes and maintain high tension in screw and nut assemblies. By combining them in varying sequence, each size gives numerous load-carrying possibilities.
     

MATERIAL
Stainless Steel 300 Series
1050 Spring Steel
1074 Spring Steel
1095 Spring Steel
and Others

FINISHES
Per Customer Specifications

     Stock sizes in high-carbon steel or stainless steel
or manufactured to your specifications

We have several size dies available.
Please call, fax or e-mail if you don't see a size you need.
       
S = Stainless Steel      

Precision Part # Free fit over rod diameter or rod size Mininum ID Maximum OD Free fit in hole diameter Thickness (t) Height (H) Compressed Height (H1) Load at H1 (lbs.) +\- 15% (lbs)
PSBW0187-010S 3/32 0.093 0.187 3/16 0.010 0.015 0.0125 13 - 17.6
PSBW0250-013 1/8 0.125 0.250 1/4 0.013 0.020 0.017 23.6 - 29
PSBW0250-013S 1/8 0.125 0.250 1/4 0.013 0.020 0.017 22 - 30
PSBW0281-015 #6 0.138 0.281 9/32 0.015 0.023 0.019 30 - 37
PSBW0281-015S #6 0.138 0.281 9/32 0.015 0.023 0.019 28.5 - 38.5
PSBW0312-017S 5/32 0.156 0.312 5/16 0.015 0.025 0.021 35 - 48
PSBW0343-019 #8 0.164 0.343 11/32 0.018 0.028 0.023 45 - 56
PSBW0343-019S #8 0.164 0.343 11/32 0.018 0.028 0.023 43 - 58
PSBW0375-020 3/16 0.190 0.375 3/8 0.020 0.030 0.025 54 -66
PSBW0375-020S 3/16 0.190 0.375 3/8 0.020 0.030 0.025 51 - 69
PSBW0562-028 3/16 0.190 0.562 9/16 0.028 0.042 0.035 78 - 96
PSBW0437-016S #12 0.220 0.437 7/16 0.016 0.031 0.023 34 - 46
PSBW0437-020 #12 0.220 0.437 7/16 0.020 0.032 0.026 51 - 63
PSBW0500-018 1/4 0.255 0.500 1/2 0.018 0.034 0.026 40.5 - 49.5
PSBW0500-018S 1/4 0.255 0.500 1/2 0.018 0.034 0.026 38 - 52
PSBW0500-038 1/4 0.255 0.500 1/2 0.038 0.047 0.043 161 - 219
PSBW0500-038S 1/4 0.255 0.500 1/2 0.038 0.047 0.043 161 - 219
PSBW0750-036 1/4 0.255 0.750 3/4 0.036 0.054 0.045 132 - 162
PSBW0625-022 5/16 0.317 0.625 5/8 0.022 0.042 0.032 63 - 77
PSBW0625-022S 5/16 0.317 0.625 5/8 0.022 0.042 0.032 59 - 81
PSBW0625-047 5/16 0.317 0.625 5/8 0.047 0.059 0.053 255 - 345
PSBW0625-047S 5/16 0.317 0.625 5/8 0.048 0.059 0.053 255 - 345
PSBW0750-028 3/8 0.380 0.750 3/4 0.028 0.051 0.039 99 - 121
PSBW0750-028S 3/8 0.380 0.750 3/4 0.028 0.051 0.039 93 - 127
PSBW0750-040 3/8 0.380 0.750 3/4 0.040 0.059 0.049 211 - 259
PSBW0750-040S 3/8 0.380 0.750 3/4 0.040 0.059 0.049 199 - 271
PSBW0750-056 3/8 0.380 0.750 3/4 0.056 0.070 0.063 365 - 495
PSBW1125-053 3/8 0.380 1.125 1 1/8 0.052 0.080 0.066 269 - 329
PSBW0875-045 7/16 0.442 0.875 7/8 0.048 0.067 0.056 243 - 297
PSBW1000-035 1/2 0.505 1.000 1 0.035 0.067 0.051 157 - 193
PSBW1000-035S 1/2 0.505 1.000 1 0.035 0.067 0.051 148 - 202
PSBW1000-043 1/2 0.505 1.000 1 0.043 0.071 0.057 225 - 275
PSBW1000-050 1/2 0.505 1.000 1 0.050 0.075 0.062 306 - 374
PSBW1000-050S 1/2 0.505 1.000 1 0.050 0.075 0.062 289 - 391
PSBW1000-073 1/2 0.505 1.000 1 0.072 0.091 0.082 573 - 777
PSBW1500-070 1/2 0.505 1.500 1 1/2 0.072 0.104 0.087 445 - 544
PSBW1250-040 5/8 0.630 1.250 1 1/4 0.040 0.082 0.061 207 - 253
PSBW1250-040S 5/8 0.630 1.250 1 1/4 0.040 0.082 0.061 195 - 265
PSBW1250-089 5/8 0.630 1.250 1 1/4 0.090 0.111 0.100 833 - 1127
PSBW1250-089S 5/8 0.630 1.250 1 1/4 0.090 0.111 0.100 833 - 1127
PSBW1500-060 3/4 0.755 1.500 1 1/2 0.060 0.102 0.081 409 - 501
PSBW1500-062S 3/4 0.755 1.500 1 1/2 0.062 0.107 0.081 364 - 546
PSBW1500-072 3/4 0.755 1.500 1 1/2 0.072 0.107 0.089 598 - 732
PSBW2000-065 1 1.000 2.000 2 0.065 0.130 0.098 531 - 649
PSBW2000-065S 1 1.000 2.000 2 0.065 0.130 0.098 502 - 679