This Tsubaki PX lock pulley is a P8M timing pulley for 25 mm belts in steel or iron construction, combined with a keyless locking element (S or F type). The lock fixes the pulley to a shaft by friction and allows easy alignment during installation. It suits industrial power transmission where higher rigidity than aluminum is preferred.
| Part No. |
Material |
No. of Teeth |
Belt Width (mm) |
Type |
Mounting Method |
Pitch Circle Diameter (Ømm) |
Dim. l (mm) |
Nominal Width (mm) |
L1(mm) |
Dim. T (mm) |
Dim. D (Ømm) |
| PT48P8M25AF-SS6650 |
Carbon steel for machine structural use |
48 |
25 |
PX lock pulley |
AF-S (standard mounting) |
122.23 |
36 |
25 |
21 |
12 |
80 |
| PT48P8M25AF-SS6655 |
Carbon steel for machine structural use |
48 |
25 |
PX lock pulley |
AF-S (standard mounting) |
122.23 |
36 |
25 |
21 |
12 |
80 |
| PT50P8M25AF-FS2620 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-F (flat mounting) |
127.32 |
22 |
25 |
14 |
7 |
42 |
| PT50P8M25AF-FS2622 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-F (flat mounting) |
127.32 |
22 |
25 |
14 |
7 |
42 |
| PT50P8M25AF-SS2620 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
22 |
25 |
14 |
7 |
42 |
| PT50P8M25AF-SS2622 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
22 |
25 |
14 |
7 |
42 |
| PT50P8M25AF-SS4424 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
26 |
25 |
15.5 |
8 |
56 |
| PT50P8M25AF-SS4425 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
26 |
25 |
15.5 |
8 |
56 |
| PT50P8M25AF-SS4428 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
26 |
25 |
15.5 |
8 |
56 |
| PT50P8M25AF-SS4430 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
26 |
25 |
15.5 |
8 |
56 |
| PT50P8M25AF-SS4432 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
26 |
25 |
15.5 |
8 |
56 |
| PT50P8M25AF-SS4435 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
26 |
25 |
15.5 |
8 |
56 |
| PT50P8M25AF-SS4828 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
26 |
25 |
15.5 |
8 |
56 |
| PT50P8M25AF-SS4830 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
26 |
25 |
15.5 |
8 |
56 |
| PT50P8M25AF-SS4832 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
26 |
25 |
15.5 |
8 |
56 |
| PT50P8M25AF-SS4835 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
26 |
25 |
15.5 |
8 |
56 |
| PT50P8M25AF-SS51038 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
29 |
25 |
17.5 |
10 |
66 |
| PT50P8M25AF-SS51040 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
29 |
25 |
17.5 |
10 |
66 |
| PT50P8M25AF-SS51042 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
29 |
25 |
17.5 |
10 |
66 |
| PT50P8M25AF-SS51045 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
29 |
25 |
17.5 |
10 |
66 |
| PT50P8M25AF-SS5538 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
29 |
25 |
17.5 |
10 |
66 |
| PT50P8M25AF-SS5540 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
29 |
25 |
17.5 |
10 |
66 |
| PT50P8M25AF-SS5542 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
29 |
25 |
17.5 |
10 |
66 |
| PT50P8M25AF-SS5545 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
29 |
25 |
17.5 |
10 |
66 |
| PT50P8M25AF-SS6648 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
36 |
25 |
21 |
12 |
80 |
| PT50P8M25AF-SS6650 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
36 |
25 |
21 |
12 |
80 |
| PT50P8M25AF-SS6655 |
Carbon steel for machine structural use |
50 |
25 |
PX lock pulley |
AF-S (standard mounting) |
127.32 |
36 |
25 |
21 |
12 |
80 |
| PT60P8M25AF-FS2620 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-F (flat mounting) |
152.79 |
22 |
25 |
14 |
7 |
42 |
| PT60P8M25AF-FS2622 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-F (flat mounting) |
152.79 |
22 |
25 |
14 |
7 |
42 |
| PT60P8M25AF-SS2620 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-S (standard mounting) |
152.79 |
22 |
25 |
14 |
7 |
42 |
| PT60P8M25AF-SS2622 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-S (standard mounting) |
152.79 |
22 |
25 |
14 |
7 |
42 |
| PT60P8M25AF-SS4624 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-S (standard mounting) |
152.79 |
26 |
25 |
15.5 |
8 |
56 |
| PT60P8M25AF-SS4625 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-S (standard mounting) |
152.79 |
26 |
25 |
15.5 |
8 |
56 |
| PT60P8M25AF-SS4628 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-S (standard mounting) |
152.79 |
26 |
25 |
15.5 |
8 |
56 |
| PT60P8M25AF-SS4630 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-S (standard mounting) |
152.79 |
26 |
25 |
15.5 |
8 |
56 |
| PT60P8M25AF-SS4632 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-S (standard mounting) |
152.79 |
26 |
25 |
15.5 |
8 |
56 |
| PT60P8M25AF-SS4635 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-S (standard mounting) |
152.79 |
26 |
25 |
15.5 |
8 |
56 |
| PT60P8M25AF-SS4835 |
Carbon steel for machine structural use |
60 |
25 |
PX lock pulley |
AF-S (standard mounting) |
152.79 |
26 |
25 |
15.5 |
8 |
56 |
Specify tooth count, lock type, shaft diameter and flange type. Please confirm the full part number and options against the TSUBAKI catalog; contact us if you need help identifying the right model.
Tsubakimoto Chain Co. (TSUBAKI) is a Japanese manufacturer and one of the world's leading makers of power transmission products, including roller and conveyor chains, sprockets, timing belts and pulleys, Power-Lock keyless locking devices, couplings, cam clutches, reducers and cable carriers.
