Maedler North America

Part number (SKU) 61551138Q
Material Steel
Type COM-L QPQ
Design (shape) Cylindrical with several screws
Self-centering Yes
Surface QPQ-coated
Inner diameter [d] 38 [mm]
Outer diameter [D] 75 [mm]
Length [L] 54 [mm]
Transmissible torque [T] 2780 [Nm]
Admissible axial force [Fax] 145 [kN]
shaft surface pressure [PW] 263 [N/mm2]
hub surface pressure [PN ] 117 [N/mm2]
Bolts 12.9 (No. x Size) 7 x M 8 x 50
Tightening torque fastening screws [TA] 41 [Nm]
Weight 1.15 [kg]

CATALOG PRODUCT PAGE

CAD FILES (download)

If you need a rework or a custom-made-product please contact us directly with your inquiry.

The supplied 3D models, pictures and technical drawings are made with reasonable care.
Nevertheless liability is excluded for the accuracy and correctness of this data.

Weight 1.15 kg
Dimensions 78 × 78 × 72 cm
Material

Type

Design (shape)

Self-centering

Surface

Inner diameter

Outer diameter

Length

Transmissible torque

Admissible axial force

shaft surface pressure

hub surface pressure

Bolts 12.9 (No. x Size)

Weight

Questions and answers

When will this part ship?

The stock status is shown next to the price. In stock parts ship from Bradenton, Florida, the same business day for orders placed before 2:00 p.m. Eastern. Backorder parts usually ship within 1–2 weeks.

What does shipping cost?

Shipping is calculated at checkout based on weight and destination. We ship with UPS and FedEx, and heavy orders ship by LTL freight. You can also ship on your own UPS or FedEx account for a $10 handling fee.

Can this part be bored or keyed to fit my shaft?

For most gears, sprockets, pulleys and couplings, yes. We can bore to your size and tolerance, cut a DIN 6885 keyway and add set-screw threads. We also offer expedited rework services for many parts. Email us the exact size needed and we will quote it.

Is there a better price for larger quantities?

Yes. The quantity prices are listed above. For more than the largest listed quantity, or for a custom version, ask for a quote.

Where are the CAD model and the catalogue page?

Under the Description tab you will find the link to free 2D and 3D CAD models and the catalogue page as a PDF.

Do you have this part in another size, material or in inches?

Often, yes. Use the filters on the category page, or send us your requirements and we will find the closest part or quote a custom one.

Can I return this part?

Unused standard parts can be returned within 30 days with an RMA number from returns@maedlernorthamerica.com; a 15% restocking fee applies. Custom-made parts or belts/chains that were cut to size cannot be returned. See our Return Policy.

More answers on our FAQ page. Questions about this part? Email us or call 941.803.0160.

Locking assembly COM-L bore 38mm size 38-75 QPQ-coatet PN: 61551138Q

Material: Steel, QPQ-Coated.

  • For fixing a hub (e.g. drive wheel, rotor or similar) on a shaft.
  • QPQ coated: High corrosion resistance, improved fatigue strength,
    primarily food safe.
  • For very high torques.
  • Self-centering.
  • Slight axial offset possible during mounting.
  • Concentricity: 0.02 to 0.04mm.

Fit: Shaft h8, Hub H8. Surface roughness hub/shaft Rz max. 12.5
µm.

$61.70

Availability: 1 in stock (backorders ship within 1-2 weeks)

Quantity Discount (%) Price
1 - 4 — $61.70
5 - 9 7.81% $56.88
10 - 24 13.03% $53.66
25 - 49 18.18% $50.48
50 - 99 23.42% $47.25
100 - 249 26.05% $45.63
250+ 27.44% $44.77
ProductPart number (SKU)MaterialTypeDesign (shape)Self-centeringSurfaceInner diameter [d]Outer diameter [D]Length [L]Transmissible torque [T]Admissible axial force [Fax]shaft surface pressure [PW]hub surface pressure [PN ]Bolts 12.9 (No. x Size)Tightening torque fastening screws [TA]WeightPrice
Locking assembly COM-L bore 25mm size 25-55 QPQ-coatet PN: 61551125Q61551125QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated25 [mm]55 [mm]40 [mm]810 [Nm]65 [kN]288 [N/mm2]98 [N/mm2]6 x M 6 x 3517 [Nm]0.35 [kg] $39.03
Locking assembly COM-L bore 28mm size 28-55 QPQ-coatet PN: 61551128Q61551128QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated28 [mm]55 [mm]40 [mm]950 [Nm]65 [kN]268 [N/mm2]102 [N/mm2]6 x M 6 x 3517 [Nm]0.42 [kg] $39.02
Locking assembly COM-L bore 30mm size 30-55 QPQ-coatet PN: 61551130Q61551130QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated30 [mm]55 [mm]40 [mm]970 [Nm]68 [kN]241 [N/mm2]98 [N/mm2]6 x M 6 x 3517 [Nm]0.40 [kg] $38.99
Locking assembly COM-L bore 35mm size 35-60 QPQ-coatet PN: 61551135Q61551135QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated35 [mm]60 [mm]54 [mm]1240 [Nm]70 [kN]157 [N/mm2]83 [N/mm2]7 x M 6 x 4517 [Nm]0.60 [kg] $49.57
Locking assembly COM-L bore 38mm size 38-75 QPQ-coatet PN: 61551138Q61551138QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated38 [mm]75 [mm]54 [mm]2780 [Nm]145 [kN]263 [N/mm2]117 [N/mm2]7 x M 8 x 5041 [Nm]1.15 [kg] $61.70
Locking assembly COM-L bore 40mm size 40-75 QPQ-coatet PN: 61551140Q61551140QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated40 [mm]75 [mm]54 [mm]3020 [Nm]146 [kN]293 [N/mm2]121 [N/mm2]7 x M 8 x 5041 [Nm]0.59 [kg] $58.07
Locking assembly COM-L bore 42mm size 42-75 QPQ-coatet PN: 61551142Q61551142QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated42 [mm]75 [mm]54 [mm]3150 [Nm]151 [kN]248 [N/mm2]116 [N/mm2]7 x M 8 x 5041 [Nm]1.25 [kg] $63.12
Locking assembly COM-L bore 45mm size 45-75 QPQ-coatet PN: 61551145Q61551145QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated45 [mm]75 [mm]54 [mm]3390 [Nm]151 [kN]261 [N/mm2]121 [N/mm2]7 x M 8 x 5041 [Nm]0.74 [kg] $62.24
Locking assembly COM-L bore 48mm size 48-80 QPQ-coatet PN: 61551148Q61551148QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated48 [mm]80 [mm]64 [mm]3920 [Nm]159 [kN]161 [N/mm2]96 [N/mm2]8 x M 8 x 5541 [Nm]1.30 [kg] $72.60
Locking assembly COM-L bore 50mm size 50-80 QPQ-coatet PN: 61551150Q61551150QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated50 [mm]80 [mm]64 [mm]4110 [Nm]163 [kN]156 [N/mm2]97 [N/mm2]8 x M 8 x 5541 [Nm]1.26 [kg] $72.53
Locking assembly COM-L bore 55mm size 55-85 QPQ-coatet PN: 61551155Q61551155QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated55 [mm]85 [mm]64 [mm]4370 [Nm]164 [kN]137 [N/mm2]89 [N/mm2]8 x M 8 x 5541 [Nm]1.36 [kg] $73.43
Locking assembly COM-L bore 60mm size 60-90 QPQ-coatet PN: 61551160Q61551160QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated60 [mm]90 [mm]64 [mm]6320 [Nm]211 [kN]167 [N/mm2]111 [N/mm2]10 x M 8 x 5541 [Nm]1.46 [kg] $79.75
Locking assembly COM-L bore 65mm size 65-95 QPQ-coatet PN: 61551165Q61551165QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated65 [mm]95 [mm]64 [mm]7100 [Nm]217 [kN]160 [N/mm2]109 [N/mm2]10 x M 8 x 5541 [Nm]1.55 [kg] $86.89
Locking assembly COM-L bore 70mm size 70-110 QPQ-coatet PN: 61551170Q61551170QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated70 [mm]110 [mm]78 [mm]11730 [Nm]314 [kN]184 [N/mm2]117 [N/mm2]10 x M 10 x 6083 [Nm]2.9 [kg] $116.54
Locking assembly COM-L bore 75mm size 75-115 QPQ-coatet PN: 61551175Q61551175QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated75 [mm]115 [mm]78 [mm]11900 [Nm]340 [kN]159 [N/mm2]104 [N/mm2]10 x M 10 x 6083 [Nm]3.0 [kg] $127.12
Locking assembly COM-L bore 80mm size 80-120 QPQ-coatet PN: 61551180Q61551180QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated80 [mm]120 [mm]78 [mm]16400 [Nm]392 [kN]196 [N/mm2]130 [N/mm2]12 x M 10 x 6083 [Nm]3.3 [kg] $138.31
Locking assembly COM-L bore 85mm size 85-125 QPQ-coatet PN: 61551185Q61551185QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated85 [mm]125 [mm]78 [mm]16600 [Nm]400 [kN]175 [N/mm2]119 [N/mm2]12 x M 10 x 6083 [Nm]3.4 [kg] $145.51
Locking assembly COM-L bore 90mm size 90-130 QPQ-coatet PN: 61551190Q61551190QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated90 [mm]130 [mm]78 [mm]18000 [Nm]400 [kN]169 [N/mm2]116 [N/mm2]12 x M 10 x 6083 [Nm]3.5 [kg] $150.97
Locking assembly COM-L bore 95mm size 95-135 QPQ-coatet PN: 61551195Q61551195QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated95 [mm]135 [mm]78 [mm]19000 [Nm]412 [kN]160 [N/mm2]112 [N/mm2]12 x M 10 x 6083 [Nm]3.7 [kg] $187.79
Locking assembly COM-L bore 100mm size 100-145 QPQ-coatet PN: 61551200Q61551200QSteelCOM-L QPQCylindrical with several screwsYesQPQ-coated100 [mm]145 [mm]100 [mm]27900 [Nm]559 [kN]165 [N/mm2]113 [N/mm2]12 x M 12 x 80145 [Nm]5.5 [kg] $238.47

Locking assembly COM-L bore 38mm size 38-75 QPQ-coatet PN: 61551138Q

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