Metric Fastener Series Bellevilles (DIN 6796)

Bolted joints will work loose, due to a loss of preload. This can be caused by permanent set in any part of the assembly. Belleville disc springs will counteract this loosening by increasing the axial compliance of the joint.

The load values listed in the table below are according to the calculated theoretical load curve based on the dimensions and material for each part number.

 

Click for Metric Dimensions

Metric Fasteners - Imperial Dimensions

Part NumberOD
in
ID
in
THICK
in
DISH
in
HEIGHT
in
Load 100%
lb
6796-20.1970.0870.0160.0080.024142
6796-2.50.2360.1060.020.0090.028214
6796-30.2760.1260.0240.010.033310
6796-3.50.3150.1460.0310.010.042588
6796-40.3540.1690.0390.0120.0511064
6796-50.4330.2090.0470.0140.0611442
6796-60.5510.2520.0590.020.0792423
6796-70.6690.2910.0690.0220.0912815
6796-80.7090.3310.0790.0240.1024208
6796-100.9060.4130.0980.0280.1265815
6796-121.1420.5120.1180.0370.1568513
6796-141.3780.5910.1380.0450.18311046
6796-161.5350.6690.1570.0490.20714522
6796-181.6540.7480.1770.0510.22818814
6796-201.7720.8270.1970.0550.25224544
6796-221.9290.9060.2170.0610.27830588
6796-242.2050.9840.2360.0690.30533587
6796-272.3621.1020.2560.0730.32940082
6796-302.7561.220.2760.0870.36242776

lo(max) = height as delivered
lo(min) = height after initial flattening

 

 

 

Click for Imperial Dimensions

Metric Fasteners - Metric Dimensions

Part NumberOD
mm
ID
mm
THICK
mm
DISH
mm
HEIGHT (max)
mm
Height (min) mmLoad 100%
N
6796-252.20.40.20.60.5628
6796-2.562.70.50.220.720.61946
6796-373.20.60.250.850.721374
6796-3.583.70.80.261.060.922606
6796-494.310.31.31.124713
6796-5115.31.20.351.551.356388
6796-6146.41.50.521.710733
6796-7177.41.750.552.3212469
6796-8188.420.62.62.2418640
6796-102310.52.50.73.22.825761
6796-12291330.953.953.4337712
6796-1435153.51.154.654.0448935
6796-16391741.255.254.5864336
6796-1842194.51.35.85.0883349
6796-20452151.46.45.6108735
6796-2249235.51.557.056.15135507
6796-24562561.757.756.77148793
6796-2760286.51.858.357.3177568
6796-30703172.29.28189502

lo(max) = height as delivered
lo(min) = height after initial flattening