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Product
A.P. LOCK
(Keyless Bushing)

A.P. Lock (Keyless Bushing) is a power transmission component that
enables to clamp shaft and hubs (i.e. pulley, gear etc.) simultaneously
through its surface pressure. S.I.M provides diverse options in regards
to size, body material and surface treatment.

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  • INDEX (A.P.LOCK)
  • Selection and Design Guide
  • HOW TO INSTALL
    (SAPL-A, B,C, D1, D2, D3, D4, T Series)
  • HOW TO INSTALL (SAPL-R)
  • HOW TO INSTALL (SAPC, SAPA)

SAPL-A Series

  • SAPL-A-2D (.dwg)
  • SAPL-A-3D (.step)
Dimensions / Performance
Model
d X D		 CAD Size (mm) Max.
Permissible
Torque
(Tc) (N·m)		 Max.
Permissible
Thrust Load
(Pt) (kN) 		Surface Pressure (Mpa) Screw (locking bolt) Mass
(g)
L1 L2 L3 L D1 P.C.D Shaft
(Pi)		 Hub
(Po)		 Size The no.
of
screws		 Fastening
Torque
(N·m)
SAPL-AS-5 x 16 8 11.2 13 16 18.5 11.7 2.8 1.1 204 42 M3x12 4 1.9 18
SAPL-AS-6 x 19 9 12.3 14.3 18.3 21.5 14 7.8 2.5 260 58 M4x12 4 3.9 26
SAPL-AS-8 x 21 9.3 12.6 14.6 18.6 23.5 15.4 10.7 2.6 196 62.6 M4x12 4 2.7 35
SAPL-AS-10 x 23 9.5 12.8 14.8 18.8 25.5 17.5 12.7 2.6 153 55.9 M4x12 4 2.7 40
SAPL-AS-11 x 24 9.5 13.8 15.8 19.8 26.5 18.5 14.7 2.6 139 53.6 M4x12 4 2.7 45
SAPL-AS-12 x 26 10.5 15.5 18 22 28.5 20.2 24.5 4 191 67.1 M4x15 6 2.7 53
SAPL-AS-14 x 28 10.5 15.5 18 22 30.5 22.2 28.4 4 164 62.3 M4x15 6 2.7 61
SAPL-AS-15 x 29 11.5 16.5 19 23 31.5 23.2 30.4 4 136 55 M4x15 6 2.7 66
SAPL-AS-16 x 30 12 17.1 19.6 23.6 33 24.2 32.3 4 121 50.9 M4x15 6 2.7 75
SAPL-AS-17 x 31 12.5 17.6 20.1 24.1 33.5 25.4 46.1 5.4 144 63.1 M4x15 8 2.7 75
SAPL-AS-18 x 32 12.5 17.6 20.1 24.1 34.5 26.4 49 5.4 136 61.2 M4x15 8 2.7 80
SAPL-AS-19 x 33 12.5 17.6 20.1 24.1 35.5 27.4 51.9 5.4 129 59.2 M4x15 8 2.7 81
SAPL-AS-20 x 38 15.3 21.1 24.1 29.1 42 30.8 121.6 12.2 165 69.8 M5x18 8 5.6 144
SAPL-AS-22 x 40 15.3 21.1 24.1 29.1 44 32.8 133.4 12.1 150 66.3 M5x18 8 5.6 165
SAPL-AS-24 x 42 16.3 22.1 25.1 30.1 46 34.8 146.1 12.2 128 59.2 M5x18 8 5.6 180
SAPL-AS-25 x 43 17.3 23.1 26.1 31.1 47 35.8 153 12.2 122 54.5 M5x18 8 5.6 188
SAPL-AS-28 x 46 17.3 23.1 26.6 31.6 50 38.8 213.8 15.2 136 63.7 M5x18 10 5.6 195
SAPL-AS-30 x 48 17.3 23.1 26.6 31.6 52 40.8 229.5 15.3 127 61.1 M5x18 10 5.6 208
SAPL-AS-32 x 50 18.3 24.1 27.6 32.6 54 42.8 244.2 15.2 110 55.4 M5x18 10 5.6 219
SAPL-AS-35 x 57 19.5 26 30 36 62 48.4 301.1 17.2 107 51.4 M6x20 8 9.6 325
SAPL-AS-38 x 60 20 26.5 30.5 36.5 65 51.4 403 21.5 119 59.5 M6x20 10 9.6 362
SAPL-AS-40 x 62 20.5 27 31 37 67 53.4 430.6 21.5 110 56.2 M6x20 10 9.6 380
SAPL-AS-42 x 64 20.5 27 31 37 69 55.4 452.2 21.5 105 54.4 M6x20 10 9.6 405
SAPL-AS-45 x 67 21 27.5 31.5 37.5 72 58.4 484.6 21.5 95 50.8 M6x20 10 9.6 435
SAPL-AS-48 x 70 21 27.5 32 38 75 61.4 620.9 25.8 107 58.4 M6x20 12 9.6 460
SAPL-AS-50 x 72 21.5 28 32.5 38.5 77 63.4 754.3 30.1 116 64.6 M6x20 14 9.6 485
  • Pt(Max. Permissible Thrust Load) indicates values at the zero(0) torque, and Tc(Max. Permissible Torque) at the zero(0) thrust load respectively. In case torque and thrust load occur simultaneously, please refer to the formula in the [Selection guide] page for combined load calculation.
  • For the best performance, make sure all foreign substances e.g. corrosion, dust etc. are removed from each surface of shaft, hub, and A.P. Lock’s inner and outer ring.