Bearing Locknut DIN 981 — KM 21 — Steel
0002FUApprovedStandardStd. ref: DIN 981Std. designator: Not documentedESX designator: ESX-DIN981-KM21-ST-PL
Slotted round nut KM 21 for a 105 mm shaft thread, outside diameter 140 mm, width 18 mm, four spanner slots, per DIN 981.
Engineering Attributes
Dimensions
Clamp Face Diameter126 mm
Inner Diameter105 mm
Nominal SizeKM 21
Outer Diameter140 h13 (0/-0.63) mm
Slot Depth5 H17 (+1.20/0) mm
Slot Width12 js14 (±0.215) mm
Width18 h13 (0/-0.27) mm
Material
MaterialSteel (ISO 898-1)
Finish / SurfaceNone (as processed)
External interface
Thread SizeM105×2
Locking FeatureNo
Thread DirectionRight-hand
Thread TypeMetric fine (MF)
Internal properties
Unit Weight946.4 ± 34.5 g
14 attributes
Interchangeability
No interchangeability relationships agreed yet.
Technical data is provided as-is and must be independently verified before use. Terms
Pricing & Availability
Unit of sale: piece