Precision Locknuts MAM, with axial Clamping

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Material: Tempered steel 42CrMo4, black oxided.

Reusable shaft nut with integrated locking devices. By fastening the locking screws, the clamping segments are elastically deformed and pressed against the shaft thread to secure the nut. For applications with high axial load, which require a high stiffness, high precision and trustable locking.

1) Fastening torque of locking screw. The screws must be tightened evenly and crosswise in several steps.
2) Breaking load in axial direction. Depending on the application, a security factor has to be choosen.
3) Breakaway torque of the nut, with screws tightened with torque TAS and nut fastened with torque TA1.
4) Fastening torque of the nut, as a reference, to provide the specification of the breakaway torque. If the nut is fastened by using a special wrench fitting in all slots from the face side, the maximum fastening torque is 2 x TA1.
5) Mass moment of intertia.

SKU Typ d1 [mm] d2 [mm] d3 [mm] B [mm] b H11 [mm] tmin. [mm] l [mm] n [mm] S [mm] TAS1) [Nm] FB2) [k N] TL3) [Nm] TA14) [Nm] J5) [kgcm2] Gewicht [g]
65359215 MAM 15 M15 x 1 30 24 18 4 5 5 4 M5 3 100 20 10 0,09 54
65359217 MAM 17 M17 x 1 32 26 18 4 5 5 4 M5 3 120 25 15 0,11 62
65359220 MAM 20 M20 x 1 38 31 18 4 6 5 4 M6 5 145 45 18 0,23 88
65359225 MAM 25 M25 x 1,5 45 38 20 5 6 6 5 M6 5 205 60 25 0,49 136
65359230 MAM 30 M30 x 1,5 52 45 20 5 7 6 5 M6 5 250 70 32 0,86 178
65359235 MAM 35 M35 x 1,5 65 58 22 6 8 6 6 M6 5 330 100 40 2,4 326
65359240 MAM 40 M40 x 1,5 65 58 22 6 8 6 6 M6 5 350 120 55 2,3 288
65359245 MAM 45 M45 x 1,5 70 63 22 6 8 6 6 M6 5 360 220 65 2,9 306
65359250 MAM 50 M50 x 1,5 75 68 25 6 8 8 6 M6 5 450 280 85 4,3 398