V Belt Measuring Gauge
Product code : Brand : Mimosi
V Belt Measure Gauge
- This measuring equipment is used to measure v belt and PK-Belts
- With this tool you can easily and quickly determine the length of your old V-belt and PK type multi-ribbed belts
V-Belt Length Measuring Tool
The V-Belt Length Measuring Tool is a professional measuring device that allows you to determine the exact length of V-belts used in automotive and industrial applications with millimetric precision.
Technical Specifications
Model: BR-BMG-01
Measurement Capacity:
- V-type belts (Z, A, B, C profiles)
- PK type belts (8 channels)
- Width measurement range: 9mm - 22mm
- Length measurement range: 360mm - 2500mm
Measurement System:
- Upper scale: Belt width measurement
- Lower scale: Belt effective length measurement
- Precision: Millimetric
Usage Advantages
- Prevents purchasing wrong-sized belts
- Guarantees correct belt installation
- Increases energy efficiency
- Prevents premature wear and tear
- Reduces maintenance and replacement costs
- Extends machine lifespan
Usage Instructions
- Ensure the belt is within the measurement limits
- Place the belt evenly in the upper and lower channels
- Carefully read the values on the indicator
- You will obtain two measurement results:
- Belt width
- Belt inner/outer circumference
Customization Options
- Plastic component color change
- Adaptation to different measurement systems (metric/inch)
- Custom printing and marking
- Multiple language options (Turkish, English, Arabic, Russian, Chinese, Japanese)
- Packaging options: Single or 10-piece carton boxes
Note: Customizations are subject to minimum order quantity.
Who Should Use It?
- Industrial machine operators
- Maintenance and repair technicians
- Belt suppliers and vendors
- Industrial product distributors
- Automotive service businesses
The V-Belt Measuring Tool is an economical and practical device that provides long-term time and cost savings, essential for every professional to have at hand.
V-Belt Profile and Width Table (Detailed Technical Guide)
V-belts are among the most commonly used components in power transmission systems. Proper profile and dimension selection is critical for efficiency, vibration control, and equipment lifespan.
In this guide, you will find technical equivalents of classical and narrow (wedge) V-belt profiles, focusing especially on 9.5 mm, 12.5 mm, 13 mm, 17 mm, and 22 mm widths.
1. V-Belt Profile Dimension Table
| Top Width (mm) | Inch Equivalent | Profile Type | Height (mm) | Groove Angle | Power Level | Typical Application |
|---|---|---|---|---|---|---|
| 8.5 mm | - | Y / Z (Classical Miniature) | 8 mm | 34° | Low | Small machines |
| 9.5 mm | 3/8" | SPZ / 3V (Narrow Section) | 8 mm | 34°–38° | Medium-High | Compressors, fans |
| 9.5 mm | 3/8" | Z (Classical) | 7 mm | 34° | Low-Medium | Older machinery |
| 12.5 mm | 1/2" | SPA (Narrow Section) | 10 mm | 34°–38° | Medium | Pumps |
| 13 mm | 1/2" | A (Classical) | 8 mm | 34°–38° | Medium | Generators, conveyors |
| 16 mm | 5/8" | SPB / 5V (Narrow Section) | 13 mm | 34°–38° | High | Heavy industry |
| 17 mm | ~11/16" | B (Classical) | 11 mm | 34°–38° | High | Crushers |
| 22 mm | 7/8" | SPC (Narrow Section) | 18 mm | 34°–38° | Very High | Presses, large compressors |
| 22 mm | 7/8" | C (Classical) | 14 mm | 34°–38° | Very High | Mills |
| 25 mm | 1" | D (Classical) | 19 mm | 34°–38° | Extra Heavy | Marine engines |
| 32 mm | 1 1/4" | E (Classical) | 25 mm | 34°–38° | Extra Heavy | Large generators |
2. Difference Between Classical and Narrow Profiles
Classical Profiles (Z, A, B, C, D, E)
-
Wider base
-
Lower power density
-
Common in older systems
-
Suitable for lower-speed applications
Narrow (Wedge) Profiles (SPZ, SPA, SPB, SPC)
-
Narrower but taller construction
-
30–50% higher power transmission compared to classical belts of the same width
-
Ideal for high-speed and compact systems
-
Preferred in modern industrial designs
3. Critical Technical Warning: Profile Compatibility
13 mm (A Profile) cannot be used interchangeably with 12.5 mm (SPA Profile).
Although widths are close:
-
Sidewall angle differs
-
Working depth differs
-
Contact surface decreases
-
Premature wear and slipping occur
-
Power loss develops
The pulley must always match the belt profile.
4. Tolerance Values
For high-quality V-belts:
-
Top width tolerance: ±0.3 mm – ±0.5 mm
-
Typical SPA tolerance: +0.2 / -0.3 mm
Poor tolerance control may cause:
-
Vibration
-
Noise
-
Reduced bearing life
-
Early belt failure
5. Length Standards (Important Before Ordering)
Specifying width alone is not sufficient when ordering a belt. Length type must also be indicated:
-
Li → Inside Length (DIN 7753 / ISO 4184)
-
Lw / Ld → Pitch (Working) Length
-
La → Outside Length
Example:
SPZ 1200 Lw
B-85
6. Color Codes (Manufacturer Dependent)
Some manufacturers use color coding for identification:
-
SPZ → Blue
-
SPA → Green
-
SPB → Yellow
-
SPC → Brown
-
A Profile → Black or Red
Colors are not standardized and may vary by manufacturer.
7. V-Belt Selection Checklist
-
Profile type (SPZ, SPA, A, B, etc.)
-
Pulley groove angle
-
Working length (Li, Lw, La)
-
Power requirement (kW / HP)
-
Rotational speed (RPM)
-
Operating environment (heat, oil, dust)
Contact
Email: contact@mimosi.net
Phone: +90 216 442 32 36
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