FALK蛇形彈簧聯軸器是利用分為一組或幾組的蛇形彈簧，嵌在兩半聯軸器凸緣上的齒間內，以實現兩半聯軸器聯接，為防止蛇形彈簧在離心力作用下甩出及避免蛇形彈簧與齒接觸處發生干摩擦，需用封閉的殼體罩住，并在里面注以潤滑油或潤滑脂。蛇形彈簧聯軸器分為恒剛度和變剛度兩種，主要取決于彈簧接觸齒的下列兩種形式：齒形為直線形：在正常負載時，蛇形彈簧與齒接觸點之間的距離不隨蛇形彈簧變形量的改變而變化，剛度不變，兩半聯軸器的相對轉角與所傳遞的轉矩為線性關系，屬于恒剛度蛇形彈簧聯軸器。

由于FALK蛇形彈簧聯軸器的尺寸范圍包括：
1020T,1030T,1040T,1050T,1060T,1070T,1080T,1090T,1100T,1110T,1120T,1130T,1140T,1150T,1160T,1170T,1180T,1190T,1200T,1210T,1220T,1230T,1240T,1250T,1260T.
按照聯軸器類型，福克FALK聯軸器的型號主要為：
1020T10,1030T10,1040T10,1050T10,1060T10,1070T10,1080T10,1090T10,1100T10,1110T10,1120T10,1130T10,1140T10,1150T10,1160T10,1170T10,1180T10,1190T10,1200T10,1210T10,1220T10,1230T10,1240T10,1250T10,1260T10.
1020T20,1030T20,1040T20,1050T20,1060T20,1070T20,1080T20,1090T20,1100T20,1110T20,1120T20,1130T20,1140T20,1150T20,1160T20,1170T20.
1020T31,1030T31,1040T31,1050T31,1060T31,1070T31,1080T31,1090T31,1100T31,1110T31,1120T31,1130T31,1140T31,1150T31,1160T31,1170T31,1180T31,1190T31,1200T31
1030T50,1040T50,1050T50,1060T50,1070T50,1080T50,1090T50,1100T50,1110T50,1120T50,1130T50,1140T50,1150T50,1160T50,1170T50,1180T50,1190T50,1200T50