Page 1105 - Rollingbearings

Designation system

Designation system

Product type
AN Lock nut, dimensions in accordance with ANSI standard, normal series
HM Lock nut with a trapezoidal thread
HME HM lock nut with a recessed outside diameter
HML HM lock nut, light series
HMLL HML lock nut with a lower cross-sectional height
KM Lock nut dimensions in accordance with ISO standard
KMD Two-part precision lock nut with axial locking screws
KMFE Lock nut with an integral locking screw, contact face designed for CARB toroidal roller bearings, sealed
spherical roller bearings and sealed self-aligning ball bearings
KMK Lock nut with an integral locking device
KML Lock nut with a lower cross-sectional height
KMT Precision lock nut with locking pins
KMTA Precision lock nut with locking pins and with cylindrical outside surface (some with different thread
pitch to KMT nuts)
N Lock nut, dimensions in accordance with ANSI standard
N lock nuts are available in two series; N 00 normal series and N 000 low proile series
MB Lock washer, dimensions in accordance with ISO standard for a KM lock nut
MBL Lock washer, dimensions in accordance with ISO standard for a KML lock nut
MS Locking clip, dimensions in accordance with ISO standard for an HM or HME lock nut
PL Locking plate, dimensions in accordance with ANSI standard
W Lock washer, dimensions in accordance with ANSI standard
W lock washers are available in two series; W 00 for lock nuts in normal series (AN and N) and W 000
for lock nuts in low proile series (N 0) without an axial tab

Size identiication
for metric dimensions
0 10 mm thread diameter
1 12 mm thread diameter
2 15 mm thread diameter
3 17 mm thread diameter
4 (x5) 20 mm thread diameter
to to
96 (x5) 480 mm thread diameter
/500 to 500 mm thread diameter
to to
/1120 1 120 mm thread diameter
for inch dimensions

0 0 391 in thread diameter
1 0 469 in thread diameter
2 0 586 in thread diameter
3 0 664 in thread diameter
4 0 781 in thread diameter
to to
96 18 894 in thread diameter
500 19 682 in thread diameter
to to
950 37 410 in thread diameter

Sufixes

A Increased plate thickness for MB lock washers
B Whitworth thread
H Bigger contact diameter
L Smaller contact diameter
P Sintered material
T Trapezoidal thread 25

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