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Power Drive 3839 belt rule, aluminium slide, wall-mount holes, measures up to 100 in

Power Drive

Power Drive 3839 Belt Rule 100 in

SKU CH-52D5-BAHXN

Measures V-belts up to 100 inches with aluminium slide adjustment and wall-mount holes

  • Product typePower Transmission Belts
  • Measures V-belts up to 100 inches for accurate sizing
  • Aluminium slide adjustment enables precise belt positioning
  • Wall mounting holes allow convenient workshop storage
  • Compatible with 3L, 3V, 4L, 5L, 5V, A and B belt types
  • Model 3839 identifies this Power Drive belt rule

Belt Rule for V-Belt Sizing

The Power Drive 3839 measures V-belts up to 100 inches in length. It supports trade sizes 3L, 3V, 4L, 5L, 5V, A and B. The aluminium slide adjustment provides accurate readings for maintenance and replacement tasks. Wall mounting holes allow fixed installation in a workshop or tool crib.

Manual Tool With No Power Requirements

This belt rule operates without batteries or external power. There are no moving parts that generate heat or noise during use. The aluminium construction resists corrosion in typical industrial environments. Power draw and thermal output are effectively zero.

Consistent Accuracy Under Repeated Use

The rule maintains its calibration across repeated measurements because it relies on a physical scale rather than electronic sensors. No warm-up period is required before taking readings. Performance does not degrade during extended sessions in the shop. It is not suited for automated or digital data-logging workflows.

How it compares

Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.

Price $56.99
Pricier than about 65% of the 693 comparable items (median $35.99).

Specifications

Product
Product typePower Transmission Belts

Questions about this item

How do I install the Power Drive 3839 belt rule and what step is often missed?

Mount the rule using the wall mounting holes, then adjust the aluminum slide to match the belt trade size being measured; the step often missed is setting the slide to the correct size before taking a reading.

What maintenance or replacement will the Power Drive 3839 belt rule need over time?

The aluminum slide adjustment may loosen with repeated use and should be checked periodically; the rule itself requires no batteries and has no consumable parts to replace.

What is the first measurement limit reached on the Power Drive 3839 belt rule during sustained use?

The rule measures V-belts up to 100 in maximum length; belts longer than that cannot be measured with this tool.

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