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[Material]
· Pulley: Extra super duralumin aluminum alloy
· Flange: Aluminum alloy
· Bushing: S45C equivalent
[Surface treatment]
· Clear anodize, hard clear anodize (firm hardness 300HV~)
Part Number
Configured Part Number is shown.

| Dimension Range | Tolerance (mm) | |
| Over | or Less | |
| 0.5 | 3 | ±0.1 |
| 3 | 6 | ±0.1 |
| 6 | 30 | ±0.2 |
| 30 | 120 | ±0.3 |
| 120 | 400 | ±0.5 |
Table 1: Select Shaft Bore Dia.
| dH7 | Max. allowable torque (N⋅m) | D1 | (L) | |
| HTTA ·HTTK | HTTAS | |||
| 8 | 19.6 | 10.7 | 23.5 | 6.0 |
| 10 | 27.5 | 12.7 | 25.5 | |
| 12 | 44.1 | 24.5 | 28.5 | 6.5 |
| 14 | 63.7 | 28.4 | 30.5 | |
| 15 | 80.4 | 30.4 | 31.5 | |
| 16 | 83.3 | — | 33.0 | |
| 17 | 92.2 | — | 33.5 | |
| 18 | 95.1 | — | 34.5 | |
| 19 | 98.1 | — | 35.5 | |
| 20 | 216.0 | 122 | 42.0 | 8.0 |
| 22 | 255.0 | — | 44.0 | |
| 24 | 363.0 | — | 46.0 | |
| 25 | 392.0 | 153 | 47.0 | |
| 28 | 441.0 | — | 50.0 | 8.5 |
| 30 | 500.0 | 230 | 52.0 | |
| 32 | 530.0 | — | 54.0 | |
■List of MechaLocks by part number
| HHTA | HTTK | HHTAS |
| MLM | MLHS | |
Table 2: pulley through hole combination
| Nominal Width | MechaLock inner dia. dH7 |
| T5100 | 10·12·14 |
| T5150 | 20·22 |
■Belt Nominal Width / Dimensions
| mm | Nominal | |||
| T5100 | T5150 | T5200 | T5250 | |
| A | 11 | 17 | 22 | 27 |
| W | 16 | 22 | 27 | 32 |
| Y | - | 14 | 14(up to d10) 18(d12 or more) | 14(up to d10) 22(d12 to 22) 23.5(d24 or more) |
■Mechalock bolt tightening torque (N⋅m)
| type | MLM | MLMB | MLMP | MLHS |
| d | ||||
| 6 | 3.9 | 3.2 | 3.9 | 2.7 |
| 8 | ||||
| 10 | ||||
| 12 | ||||
| 14 | ||||
| 15 | ||||
| 16 | ||||
| 17 | ||||
| 18 | ||||
| 19 | ||||
| 20 | 8.8 | 7.5 | 8.8 | 5.6 |
| 22 | ||||
| 24 | ||||
| 25 | ||||
| 28 | ||||
| 30 | ||||
| 32 | ||||
| 35 | 15.7 | 12.7 | 15.7 | 9.6 |
| 38 | ||||
| 40 | ||||
| 42 | ||||
| 45 | ||||
| 48 | ||||
| 50 |
| Type | Belt Width | [M]Material *1 | [S] Surface Treatment | |||||||
| 10 mm | 15 mm | 20 mm | 25 mm | Pulley | Flange | MechaLock | Pulley | Flange | MechaLock | |
| T5100 | T5150 | T5200 | T5250 | |||||||
| HTTA | ● | ● | ● | ● | Extra Super Duralumin Aluminum alloy | Aluminum alloy | S45C Equivalent | Clear Anodize | — | |
| HTTK | ● | ● | ● | ● | Hard clear anodize *2 | — | ||||
HTTAS | ● | ● | ● | ● | SUS304 Equivalent | Clear Anodize | — | |||
| Part number | — | Pulley Shape | — | Shaft Bore Dia. |
| HTTA48T5250 | — | F | — | 20 |
| Part number | Pulley Shape | Shaft bore dia. dH7 range 1 mm increments | P.D | O.D | F | E | |||||||||||||
| Type | Number of Teeth | Type Nominal Width | HTTA,HTTK | HTTAS | |||||||||||||||
Shape E | Shape F | Shape E | Shape F | ||||||||||||||||
T5100 | T5150 | T5200,T5250 | T5150 | T5200 | T5250 | T5100 | T5150 | T5200,T5250 | T5150 | T5200 | T5250 | ||||||||
| HTTA HTTK HTTAS | 24 | T5100 T5150 T5200 T5250 | E F | 8 | 8 | 8 | 38.2 | 37.4 | 45 | 30 | |||||||||
25 | 39.79 | 39 | |||||||||||||||||
26 | 8,10 | 8,10 | 8,10 | 41.38 | 40.6 | 48 | 35 | ||||||||||||
27 | 42.97 | 42.17 | |||||||||||||||||
28 | 44.56 | 43.75 | |||||||||||||||||
29 | 46.15 | 45.35 | |||||||||||||||||
30 | 10 | 10 | 10 | 47.75 | 46.95 | 52 | 36 | ||||||||||||
31 | 49.34 | 48.53 | 55 | 40 | |||||||||||||||
32 | 10,12, 14 | 10 | 10,12, 14 | 10,12, 14 | 10 | 10,12, 14 | 50.93 | 50.1 | |||||||||||
33 | 52.52 | 51.67 | 61 | 45 | |||||||||||||||
34 | 10,12, 14 | 10,12, 14-16 | 10 | 10,12, 14-16 | 10,12, 14 | 10,12, 14,15 | 10,12, 14,15 | 54.11 | 53.25 | ||||||||||
35 | 55.7 | 54.85 | |||||||||||||||||
36 | 57.3 | 56.45 | |||||||||||||||||
37 | 58.89 | 58.05 | 67 | 50 | |||||||||||||||
38 | 60.48 | 59.65 | |||||||||||||||||
39 | 62.07 | 61.25 | |||||||||||||||||
40 | 10,12, 14 | 10,12, 14-19 | 10 | 10,12, 14-19 | 63.66 | 62.85 | |||||||||||||
41 | — | — | 65.25 | 64.43 | 74 | 58 | |||||||||||||
42 | 66.84 | 66.02 | |||||||||||||||||
43 | 68.44 | 67.62 | |||||||||||||||||
44 | 12,14 | 12,14 or more 20,22 | — | 12,14 or more 19 | 12,14-20,22 | 12,14 | 12,14, 15,20 | 12,14, 15,20 | — | 12, 14,15 | 12, 14, 15, 20 | 70.03 | 69.2 | ||||||
45 | 71.62 | 70.79 | 80 | 60 | |||||||||||||||
46 | 73.21 | 72.37 | |||||||||||||||||
47 | 74.8 | 73.96 | 83 | 63 | |||||||||||||||
48 | 12,14 | 12,14 or more 20,22 | 12,14 or more 20,22,24 | — | 12,14 or more 19 | 12,14 or more 20,22,24 | 76.39 | 75.55 | |||||||||||
49 | 77.99 | 77.15 | 87 | 67 | |||||||||||||||
50 | 12,14 | 12,14 or more 20,22 | 12,14 or more 20,22, 24,25,28 | — | 12,14 or more 19 | 12,14 or more 20,22,24,25,28 | 12,14, 15,20,25 | — | 12, 14, 15, 20, 25 | 79.58 | 78.75 | ||||||||
51 | 81.17 | 80.34 | |||||||||||||||||
52 | 82.76 | 81.93 | |||||||||||||||||
53 | 84.35 | 83.52 | 95 | 75 | |||||||||||||||
54 | 85.94 | 85.11 | |||||||||||||||||
55 | 87.54 | 86.71 | |||||||||||||||||
56 | 89.13 | 88.3 | |||||||||||||||||
57 | 90.72 | 89.89 | 99 | 80 | |||||||||||||||
58 | 92.31 | 91.48 | |||||||||||||||||
59 | 93.9 | 93.07 | |||||||||||||||||
60 | 12,14 | 12,14 or more 20,22 | 12,14-20, 22,24,25,28,30,32 | — | 12,14 or more 19 | 12,14 or more 20,22,24,25,28,30 | 12,14,15, 20,25,30 | — | 12,14,15, 20,25,30 | 95.49 | 94.65 | ||||||||
| Part number | — | Pulley Shape | — | Shaft Bore Dia. | — | (BMC, etc.) |
| HTTA40T5250 | — | E | — | 18 | — | BMC |
| Alterations | Surface Treatment | Flange Cut | No Flange | Single Flange | |
| Code | BMC·BMR | FC | NFC | LFC·RFC | |
| Spec. | Applies electroless nickel plating on a MechaLock. (Antirusting treatment is applied to screws.) [ ! ] Electroless nickel plating decreases bushing's allowable torque by 20 to 30%. BMC: Not RoHS Compliant (Screw: SCM435 Dacrotized Treatment) BMR: RoHS Compliant (Screw: SCM435 GeoMet Coating) | Lowers the flange by cutting. FC: 0.5 mm Increments [ ! ] No surface treatment is applied on flange circumference. | The product is shipped without swaging the flange. (Flange Included) | The product is shipped by swaging the flanges either on the bushing side (LFC) or the opposite side (RFC). (Flange 1 pc. Included) | |
![]() | [ ! ]FC ≥ (O. D.) +1 [ ! ]FC ≤ F-2 Ordering Code FC43 | ![]() | ![]() | ||
CAD Data download and 3D preview are not available because the part number has not yet been determined.
| Part Number |
|---|
| HTTK60T5200-E-17 |
| HTTK60T5200-E-18 |
| HTTK60T5200-E-19 |
| HTTK60T5200-E-20 |
| HTTK60T5200-E-22 |
| HTTK60T5200-E-24 |
| HTTK60T5200-E-25 |
| HTTK60T5200-E-28 |
| HTTK60T5200-E-30 |
| HTTK60T5200-E-32 |
| HTTK60T5250-E-12 |
| HTTK60T5250-E-14 |
| HTTK60T5250-E-15 |
| HTTK60T5250-E-16 |
| HTTK60T5250-E-17 |
| HTTK60T5250-E-18 |
| HTTK60T5250-E-19 |
| HTTK60T5250-E-20 |
| HTTK60T5250-E-22 |
| HTTK60T5250-E-24 |
| HTTK60T5250-E-25 |
| HTTK60T5250-E-28 |
| HTTK60T5250-E-30 |
| HTTK60T5250-E-32 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Belt Width Used (mm) | No. of Teeth (T) | Pulley Shape | Surface Treatment | Shaft Bore Dia. d (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
MYR 470.38 | 1 Piece(s) | 7 Day(s) | 10 | 20 | 60 | Shape E | Hard Clear Anodize | 17 | ||
MYR 475.22 | 1 Piece(s) | 7 Day(s) | 10 | 20 | 60 | Shape E | Hard Clear Anodize | 18 | ||
MYR 475.22 | 1 Piece(s) | 7 Day(s) | 10 | 20 | 60 | Shape E | Hard Clear Anodize | 19 | ||
MYR 480.07 | 1 Piece(s) | 7 Day(s) | 10 | 20 | 60 | Shape E | Hard Clear Anodize | 20 | ||
MYR 484.92 | 1 Piece(s) | 7 Day(s) | 10 | 20 | 60 | Shape E | Hard Clear Anodize | 22 | ||
MYR 487.34 | 1 Piece(s) | 7 Day(s) | 10 | 20 | 60 | Shape E | Hard Clear Anodize | 24 | ||
MYR 461.13 | 1 Piece(s) | 7 Day(s) | 10 | 20 | 60 | Shape E | Hard Clear Anodize | 25 | ||
MYR 499.47 | 1 Piece(s) | 7 Day(s) | 10 | 20 | 60 | Shape E | Hard Clear Anodize | 28 | ||
MYR 520.08 | 1 Piece(s) | 7 Day(s) | 10 | 20 | 60 | Shape E | Hard Clear Anodize | 30 | ||
MYR 509.17 | 1 Piece(s) | 7 Day(s) | 10 | 20 | 60 | Shape E | Hard Clear Anodize | 32 | ||
MYR 482.50 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 12 | ||
MYR 484.92 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 14 | ||
MYR 492.20 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 15 | ||
MYR 494.63 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 16 | ||
MYR 494.63 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 17 | ||
MYR 498.26 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 18 | ||
MYR 498.26 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 19 | ||
MYR 504.32 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 20 | ||
MYR 507.95 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 22 | ||
MYR 510.39 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 24 | ||
MYR 516.44 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 25 | ||
MYR 522.51 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 28 | ||
MYR 543.12 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 30 | ||
MYR 533.42 | 1 Piece(s) | 7 Day(s) | 10 | 25 | 60 | Shape E | Hard Clear Anodize | 32 |
Loading...
| Type | Keyless Bushings | Belt Type | T5 | Material | Extra Super Duralumin Series Aluminum Alloy |
|---|---|---|---|---|---|
| Timing Pulley / Idler | Pulleys |



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