Keyless Timing Pulleys - L - MechaLock Standard Type Incorporated (With Centering Function)
Brand :
MISUMI
Caution
- Regarding RoHS compliance: The products are RoHS non-compliant only when alteration BMC is selected. The products are RoHS-compliant when BMC is not selected. As some parts used in the alteration are RoHS non-compliant, the RoHS notation on this page has been changed to non-compliant. "Non-compliant" is also indicated in the certificate due to information on the left.
- Please note that the swaged flange options, NFC, RFC, and LFC, are not reflected in the CAD data.
Product Description
[Material]
· Pulley: Extra super duralumin aluminum alloy, S45C equivalent
· Flange: Aluminum alloy, SPCC
· Bushing: S45C equivalent
[Surface treatment]
· Clear anodize, hard clear anodize (firm hardness 300HV~), electroless nickel plating, black oxide
■L type
● Pulley Shape
Shape E
Shape F
Tooth Profile
(ISO Standard Rack
Dimensions)
(ISO Standard Rack
Dimensions)
Tooth groove dimensions slightly vary according to the number of teeth. (Pitch: 9.525mm)
*3 For the combination of nominal width and MechaLock inner diameter shown in Table 2,
the MechaLock mounting holes are not stepped holes, but are through holes of
the MechaLock outer diameter.([!] Shape E only)
[ ! ] Surface treatment may not be applied to the shaft bores.
[ ! ] Flange is installed.
[ ! ] For orders with no flange, please specify the alteration NFC.
[ ! ] Cut Flange for 60 and 72 Toothed Pulleys.
[ ! ] Unless otherwise specified except for teeth and F dimensions,
the dimension tolerance conforms to JIS B 0405 Class m.
the MechaLock mounting holes are not stepped holes, but are through holes of
the MechaLock outer diameter.([!] Shape E only)
[ ! ] Surface treatment may not be applied to the shaft bores.
[ ! ] Flange is installed.
[ ! ] For orders with no flange, please specify the alteration NFC.
[ ! ] Cut Flange for 60 and 72 Toothed Pulleys.
[ ! ] Unless otherwise specified except for teeth and F dimensions,
the dimension tolerance conforms to JIS B 0405 Class m.
■Dimensional Tolerances Without Command
[ ! ]Compliant with JIS B 0405 Class m (intermediate).
| 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 2: pulley through hole combination
| Nominal Width | MechaLock inner dia. dH7 |
| L050 | 17·18·19 |
| L075 | 32 |
■Belt Nominal Width / Dimensions
| mm | Nominal | |||
| L050 | L075 | L100 | L150 | |
| A | 14 | 21 | 27 | 40 |
| W | 19 | 26 | 32 | 45 |
| Y | 13 | 14((up to d10) 18(d12 or more) | 14((up to d10) 22(d12 to 22) 23.5(d24 or more) | 19((up to d10) 28(d12 to 32) 32(d35 or more) |
■Mechalock bolt tightening torque (N⋅m)
| type | MLM | MLMB | MLMP |
| d | |||
| 6 | 3.9 | 3.2 | 3.9 |
| 8 | |||
| 10 | |||
| 12 | |||
| 14 | |||
| 15 | |||
| 16 | |||
| 17 | |||
| 18 | |||
| 19 |
| type | MLM | MLMB | MLMP |
| d | |||
| 20 | 8.8 | 7.5 | 8.8 |
| 22 | |||
| 24 | |||
| 25 | |||
| 28 | |||
| 30 | |||
| 32 |
| type | MLM | MLMB | MLMP |
| d | |||
| 35 | 15.7 | 12.7 | 15.7 |
| 38 | |||
| 40 | |||
| 42 | |||
| 45 | |||
| 48 | |||
| 50 |
■List of MechaLocks by part number
| HPLA | HPLK | HPLN | HPLT | HPLM | HPLP |
| MLM | MLMB | MLMP | |||
| Type | Part number | [M]Material *1 | [S] Surface Treatment | |||||||
| Belt Width 12.7 mm (1/2 in) | Belt Width 19.1 mm (3/4 in) | Belt Width 25.4 mm (1 in) | Belt Width 38.1 mm (1.5 in) | Pulley | Flange | MechaLock | Pulley | Flange | MechaLock | |
| L050 | L075 | L100 | L150 | |||||||
| HPLA | ● | ● | ● | ● | Extra Super Duralumin Aluminum alloy | Aluminum alloy | S45C Equivalent | Clear Anodize | — | |
| HPLK | ● | ● | ● | ● | Hard Clear Anodized *2 | — | ||||
| HPLN | ● | ● | ● | ● | Electroless nickel plating | — | ||||
| HPLT | ● | ● | ● | ● | S45C Equivalent | SPCC | S45C Equivalent | — | ||
| HPLM | ● | ● | ● | ● | Black Oxide Coating | |||||
| HPLP | ● | ● | ● | ● | Electroless nickel plating | |||||