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MasterDrive 840-8M-20 timing belt pulley features 840 teeth with 8M pitch and 20mm belt width. Constructed from high-quality steel for durability in synchronous drive applications. Suitable for industrial power transmission systems requiring precise timing and positive engagement.
MODEL 840-8M-20
Contact supplier for technical support on: 888-922-8767
$26.00 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: See conditions
Bore Diameter
.75 in
Bore Type
Finished Bore with Keyway and 1 Set Screw
Color
Black
cord
Fiberglass
Finish/Coating
Grey Painted Protective Coating
Height (in)
0.2362
Height (mm)
6
Length (in)
33.07
Length (mm)
840
Length Through Bore
1.06 in
Material
Neoprene
Number of Teeth
105
OD
5.93 in
Section
Single_Sided
Series
AL Light Duty Sheaves
Sheave Construction
Spoked
Tooth Pitch (in)
0.315
tooth pitch mm
8
Tooth Profile
8M
Type
Bored-To-Size Light Duty V-Belt Sheaves
Weight (ibs)
0.1932
Width (in)
0.787
Width (mm)
20
840-8M-20 high torque drive (HTD) timing belts’ curvilinear tooth design improves stress distribution to provide high horsepower ratings over a wide speed range and high torque transmission at low speeds. They are made of highly durable rubber compound with a glass cord tension member. Belt drives are 99% efficient, leading to significant energy savings on high horsepower applications. The belts are thin and flexible, so they don’t generate heat build up delivering long service life. The rounded tooth profile meshes precisely with matching pulley grooves so there is no belt creep or slip to cause speed variation. Continuous, helically-wound S and Z oriented fiberglass cord is the load-carrying muscle of the belt, resisting elongation and shock loads while providing excellent strength and service life.
SKU: 2335920
Just what i needed
I needed a very small belt for my rock polisher, and it was just the right size.
Read moreSKU: 2337228
My mistake? fixed!
I needed a 3L330 V-Belt and somehow I think either I typed 5L330 although I was using an online conversion chart to match up belt numbers which might have had a typo there. The delivery is always good from MRO. I contacted MRO by email late that night after work with my silly situation and then rather than wait for a reply I ordered the right belt number so I could get the job done. I got a reply the next morning with instructions for the return procedure then the very next day I had the right belt delivered. Then I received another two contacts from the returns agent and customer support agent both telling me not to return the wrong belt and I would be refunded the purchase amount. Outstanding helpful support and the 'fastest delivery in the west'. MRO people are the best all around. Great products and extensive choices. I am retired now after 50 years in manufacturing equipment operations and maintenance with Nashua then Kellogg's but still I love working on machines and fixing things. MRO is a great source for many things even as small as a lawn & garden V-Belt they take care of the little guy too. Great people at MRO Supply.
Read more
| Brand | E-Z Lok |
| Model | EK21420 |
| Brand | Dormer Pramet |
| Model | 5984416 |
| Brand | Cleveland |
| Model | C81664 |
SKU: 2335920
Just what i needed
I needed a very small belt for my rock polisher, and it was just the right size.
Read moreSKU: 2337228
My mistake? fixed!
I needed a 3L330 V-Belt and somehow I think either I typed 5L330 although I was using an online conversion chart to match up belt numbers which might have had a typo there. The delivery is always good from MRO. I contacted MRO by email late that night after work with my silly situation and then rather than wait for a reply I ordered the right belt number so I could get the job done. I got a reply the next morning with instructions for the return procedure then the very next day I had the right belt delivered. Then I received another two contacts from the returns agent and customer support agent both telling me not to return the wrong belt and I would be refunded the purchase amount. Outstanding helpful support and the 'fastest delivery in the west'. MRO people are the best all around. Great products and extensive choices. I am retired now after 50 years in manufacturing equipment operations and maintenance with Nashua then Kellogg's but still I love working on machines and fixing things. MRO is a great source for many things even as small as a lawn & garden V-Belt they take care of the little guy too. Great people at MRO Supply.
Read more