Quick Answer: How Are Lawn Tractor Drive Belts Measured?

Are lawn mower belts measured inside or outside?

Inside Belt Lengths: The inside length is measured with flat pulleys or a tape measure. As with the outside length, the inside length varies with the manufacturer. This length should not be used. 3.

How do I determine my belt size?

An easy way to determine belt size is to simply “add 2″ to your off-the-rack trouser size. For example, if you wear a 36” waist trouser, then a 38 belt size will be a safe bet. Most will find this simple formula works best for pants worn at a traditional height–close to the natural waistline.

How many inches is a 42 inch deck belt?

174883. AYP / Craftsman / Sears Deck Drive Belt fits 42 ” cut (2002-2003). Size: 5/8″ x 97″.

Can a lawn mower belt stretch?

Yes, lawnmower belts can stretch. When it stretches more than it should, it can result in the drive belts lose grip on the pulley system. When that happens, the efficiency of mowers takes a dip.

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What size belt do I need for a 42 inch deck?

There’s no standard size for a 42 – inch -cut riding mower. Each model uses a different size belt. To give examples, some models use a drive belt that is ½ inch wide by 92 inches in length, while others use a belt ½ inch wide by 85 inches in length.

What is timing belt pitch length?

Timing belt pitch is the distance in millimeters and/or inches between two adjacent tooth centers as measured on the pitch line of the timing belt.

What is datum length?

The datum length is obtained by adding the datum circumference of one pulley to twice the measured distance between the pulley centres.

What do V-belt numbers mean?

The number following it is the outside length of the belt in tenths of inches. The inside length of the belt is typically 2″ less for a 4L belt, and 1-1/2″ less for a 3L belt. “Classic” v – belt numbers start with a letter identifying the cross section, “A” through “E” – see V – Belt Dimensions below.

Is belt size same as waist size?

Your belt size is not the same as your waist size or even your pants size. The belt size, as a general rule, is measured from the end of the belt buckle to the hole in the middle of the usually five-hole belt. Remember that the belt size usually excludes the measurement of the buckle.

Should you size up in belts?

The most widely used method is to buy a belt that is 1-2″ larger than your pants size, or as some say: ONE SIZE UP. Example, if you wear a size 36 pants, you would order a size 38 belt. If you wear an odd size pants, say a size 37, and sticking with the 1-2″ rule, you too should order a size 38.

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What size belt should I buy for a 34 waist?

Size 34 waist choose a 36 size belt, 36 waist choose a size 38 belt, 38 waist choose a size 40 belt, etc. If you wear an odd size pants, say a size 35, and sticking with the 1-2″ rule, you would choose a size 36 belt.

How long is a craftsman 42 inch deck belt?


Length: 101.5 (in.)
Width: 0.5 (in.)

Are all 42 mower decks the same?

Lawnmower decks are largely interchangeable. Engines will swap without issue, however, blades and drive systems may differ.

What size is my mower deck?

If there is no obstruction, feed your tape measure through the pulleys, across the center of the deck, and hook it on the opposite side. For a round deck, locate the widest area of the circle, or the diameter, and extend your tape measure across that area. Note the distance on your tape measure. This is your deck size.

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