V - belts problems & solutions

-
Good Evening Everyone....!!!

Today we shall discuss some general problems of  V- belts & their solutions. Common v-belt drive problems can be diagnosed rather quickly and generally fall into one of the following categories.


 • Improper installation / tension
• Improper maintenance
• Drive contaminants /drive environment
• Inferior drive selection/design

Improper Installation / Tension

The most common v-belt drive problems relating to installation are improper drive alignment and insufficient tension.

 Problems related to insufficient tension will include:

• Rapid sidewall wear on belt (often even wear on both sides)
• Belt turns or jumps off of the sheave
• Belt slips and squeals
• Belt appears glazed and hardened due to spin burn.

Problems related to alignment will include:

 • Rapid sidewall wear on belt (often uneven wear on one side)
• Vibration
• Uneven wear on sheave groove walls

Common Reasons for Drives Being Undertensioned

  • Belts were installed with no physical measurement of tension.
  • Belts were not retensioned after belts seated themselves into sheave groove (typically 24 hrs. after installation).
  • Original belts were cut off and replacements were pryed or rolled onto the sheaves assuming tension was adequate.

  •  Improper Maintenance:

The most commonly overlooked maintenance procedures causing drive performance issues include.
• Worn or damages sheaves (Worn sheaves allow the belt to ride lower in the groove. As a result, the belt experiences increased stress at the cord line, slips, and often fails prematurely.In addition, drive efficiency loss can be significant. Sheaves with 1/32” or greater wear need replaced).
•  Ensuring sheave alignment (symptoms stated previously)
• Ensuring sufficient tension (symptoms stated previously)
• Prying belts on sheaves should be avoided (Prying belts on the sheaves can rupture the loadcarrying 
cords leading to premature failure)

  • Drive Contaminants:
To maximize drive life , always look for and correct the following:

 • Excessive oil or grease on the drive (Clean and install guarding)
• Abrasive environmental conditions (Clean and install guarding)
• Belt Dressing (Belt dressing treats a symptom not the disease. Belt squealing is caused by
insufficient tension and / or worn sheaves)

  • Inferior Design:
To maximize drive life , always look for and correct the following:

A drive that has sufficient installation and maintenance performed regularly and still fails to adequately perform may be underdesigned or the quality of the drive components may be a factor.
  • A quick verification of adequate drive components & selects the most optimal drive and even gives you appropriate tension requirements for the belt.







Comments

Post a Comment

Popular posts from this blog

Introduction : Movex Zero Contact Modular Belt

-
Good Evening Everyone...!!! Today we are here with new modular belt ''Zero Contact''. Here we are going to discuss about it's Design, Features & Applications with a live demonstration. Let's start with it's Designing .... Zero contact is available in different widths with a closed top surface. Polyamide material is used in  construction as well screws & nuts are made of stainless steel & zinc plated steel. Features: 1. Speed upto 70 meters per minute. 2. Maximum working load 13500 N/m (belt width) 3. Minimum width available :- 200 mm 4. Maximum width available :- 1000 mm 5. Open Area :-0% 6. Rm at first sprocket: 650mm-to-1450mm 7. Constant inner radius & reduced pitch. 8. Less floor space required.  Area of Application: Packaging Industry: It's capable of handling a variety of packages sizes, types and configurations including delicate products exiting a shrink wrapper.
Read more

Max Schlatterer Esband

-
Image
                                                   Good Evening Everyone,  Today we are here with a new topic ''Vacuum Belts'' mainly used in Packing Industry. The brand we are going to discuss is  Max Schlatterer Esband. Esband Vacuum Belts The vacuum belts (trigger belts) are mainly used in vertical forming, filling and sealing machines, so-called tubular bag machines. The basis of these vacuum toothed belts for tublar baged machines is always an endless toothed belt with a winding nose on the back of the toothed belt. This is coated in the special Esband endless process and has much above-average reliability. Due to closely set manufacturing tolerances, Esband vacuum extraction belts, for example achieve optimum friction coefficients and  convince with great consistency at  high cycle rates. Specific Properties: • High functional reliability due to high, constant coefficient of friction. • Long service life due to very good abrasion resista
Read more

CXP Vs CXA Heavy Duty Drive Belt

-
Image
Hello Everyone.....!!! Today we shall share the difference between Conti CXP & CXA Timing Belt. CXP & CXA Rubber Belt Properties: Oil resistant to a degree Tropics resistant UV and ozone Electrically conductive (Anti-static) to ISO9563 Temperatures ranging from -20°C to +100°C Increased power ratings CXP heavy-duty, high speed drive belt The CXP range has a specifically developed tension member and exceptional material bonding. The teeth and the belt top are made from a synthetic Rubber mix with high tear resistance and enhanced shear resistance, to ensure reliable sustained power transmission at belt speeds up to 50m/s. The CXP range is used where high power must be transmitted above 1000RPM. Glass Fibre Tension Member These tensile members have a high flexural fatigue strength along with a highly reliable power transmission capability up to 50m/s. CXA heavy-duty, low speed drive belt The CXA range combines exceptionally hig
Read more