Do I need both wheels, or is one enough?

One wheel is sufficient in most installations. MSJY316W ships with two identical wheels so you can mount whichever side is more convenient, or use both if your setup calls for it.

How does the counter convert wheel turns into feet and inches?

Each wheel is manufactured so that one revolution equals one foot. Five digits show whole feet (up to 99,999) and a sixth digit shows inches, with high-friction rubber on the wheel to prevent slip and keep the count accurate.

MSJY316W is rated up to 360 rpm, with large 6.5 mm digits kept legible at that speed.

The rated precision is ±0.04%.

I need meters or yards instead of feet and inches - is there a version for that?

Yes. MSZ94FW reads in meters (up to 99,999 m) and MSZ96FW reads in yards (up to 9,999 yards, with a tenths digit).

Feet Counter MSJY316W - Mechanical Length Measuring Wheel, Feet & Inches

Name: Feet Counter - Length Measuring Wheel
Brand: MiniScience
SKU: MSJY316W
Availability: InStock

Overview

MSJY316W is a high-precision, high-speed distance and length measuring wheel in the English system (feet and inches), measuring up to 99,999 feet and 11 inches. Five digits show feet and one digit shows inches, with large 6.5 mm digits for excellent visibility even at operating speeds up to 360 rpm. The push-knob reset sits on the left.

MSJY316W is built for production and packaging machinery, measuring the length of fabric, wire, cable, paper, foils, ropes, strings, leather and similar products as they move past. It comes with two identical wheels, though one is sufficient in most installations - each wheel is precisely manufactured so that one revolution equals one foot, with high-friction rubber and a rated precision of ±0.04% to prevent slip and keep the count accurate.

Installation: mount a bar that extends to the side or middle of the moving material and stands about 4 inches above it. Use a large hinge, installing the counter on one side and securing the other side to the bar. Screws are recommended for all connections; installing the hinge at the beginning of the bar lets it be lifted away from the material when measurements aren't needed.

Gallery

Application example: a MiniScience measuring wheel mounted over fabric on a production line (metric display shown)

Frequently Asked Questions

Do I need both wheels, or is one enough?: One wheel is sufficient in most installations. MSJY316W ships with two identical wheels so you can mount whichever side is more convenient, or use both if your setup calls for it.
How does the counter convert wheel turns into feet and inches?: Each wheel is manufactured so that one revolution equals one foot. Five digits show whole feet (up to 99,999) and a sixth digit shows inches, with high-friction rubber on the wheel to prevent slip and keep the count accurate.
How fast can it run?: MSJY316W is rated up to 360 rpm, with large 6.5 mm digits kept legible at that speed.
How accurate is it?: The rated precision is ±0.04%.
How is it installed on a machine?: Mount a bar that extends to the side or middle of the moving material, standing about 4 inches above it. Use a large hinge, installing the counter on one side and securing the other side to the bar; installing the hinge at the beginning of the bar lets the whole assembly be lifted away from the material when measurements aren't needed.
I need meters or yards instead of feet and inches - is there a version for that?: Yes. MSZ94FW reads in meters (up to 99,999 m) and MSZ96FW reads in yards (up to 9,999 yards, with a tenths digit) - see Related Products below.

Shipping Information

Weight (kg): 0.5 kg
Weight (lb): ~1.1 lb
Box Dimensions (mm): 165 × 94 × 105 mm
Box Dimensions (in): ~6.50 × 3.70 × 4.13 in

Related Products

Need a different unit of measure? MiniScience makes the same type of measuring wheel in metric and yard versions:

Model	Unit	Max reading	Digits
MSJY316W (this page)	Feet & inches	99,999 ft 11 in	6 (5 ft + 1 in)
MSZ94FW	Meters	99,999 m	5
MSZ96FW	Yards	9,999 yd	5 + tenths