BESTORQ A55 or 4L570 V-Belt, Classic Wrapped Rubber X3 V-Belt, Black, 57" Outside Circumference x .51" Width x .34" Height, P

4.5 4.5 out of 5 stars | 747 ratings

Price: 10.95

Last update: 07-16-2024


About this item

BESTORQ X3 fabric wrapped V-belts bring in a new generation of wrapped V-belt performance; These belts are constructed of highly engineered, high-performance components that are manufactured using the latest in belt technology available on a global basis
They are specially designed to be low maintenance and are proven to be extra durable for belt life that will outlast the competition; Reduced maintenance downtime and increased machine uptime means you save time and money
The helically wound tensile cords are created of a pre-stretched polyester material specially engineered, twisted, then set by both heat and chemical means; Testing has proven that the tensile decay properties of BESTORQ Cord are truly World Class
X3 v-belts are amazingly uniform and smooth running; With excellent adhesion between components and low stretch tensile cords, they have very low elongation and will not require any rechecks or retensioning if installed at the correct recommended tension
The BESTORQ A55 or 4L570 v-belt has a 57" outside circumference, 55" inside circumference, .51" width, and a .34" height; See images for cross section schematic


From the manufacturer

Bestorq Banner Website
X3 Hero Image

Bestorq Logo
Our main business is manufacturing Power Transmission Belts

Bestorq was incorporated in 2006, and brings over 81 years of combined engineering experience to help even the toughest application.

Product is designed, developed and tested in Lincoln, Nebraska

Classical Wrapped V-Belts

A or 4L Cross Section

The belts exceed USA RMA published ratings levels. They are designed to perform at the identical or higher level than all other major USA Manufacturer’s belts of the same type.

The body rubber compound is a highly engineered synthetic rubber compound, specially compounded for cool running, flexibility, crack resistance, and excellent bonding to the outer fabric and tensile cords.

  • The outer fabric wrap is treated with highly oil and heat resistant, engineered synthetic rubber compound, specifically compounded for excellent wear resistance
  • The helically wound tensile cords are specially engineered, twisted, heat and chemically set, polyester material

Aor4L Classic Wrapped IC OC

X3 Classic Wrapped V-Belt Cross Section

Single V-Belt Dimensions

Understanding Part Numbers and Circumference

AXX

XX - Inside Circumference

Example: A30 = 1/2" Wide; 30" IC (32" OC)

4LXXX

XXX = Outside Circumference

Example: 4L400 = 1/2" Wide; 40" IC

Bestorq X3 Cross Section

Cross Section Dimensions

For A or 4L Bestorq X3 Classic Wrapped V-belts:

Top Width: .51"

Thickness: .34"

Click Here to Learn More Click Here to Learn More Click Here to Learn More Click Here to Learn More Click Here to Learn More Click Here to Learn More
Customer Reviews
4.5 out of 5 stars
747
4.7 out of 5 stars
74
4.1 out of 5 stars
7
5.0 out of 5 stars
3
5.0 out of 5 stars
3
Price $9.99 $12.17 $20.19 $20.93 $201.93 $127.07
Explore More from Bestorq Classic Wrapped V-Belt Classic Cogged V-Belt Lawn & Garden V-Belt Double Sided V-Belt BESTLINK Linked V-Belts Classic Wrapped Wedge Belt
These raw-edge notched belts allow for higher load ratings than standard wrapped belts. Great for Lawn & Garden equipment of all types, Ag Equipment and all types of inductrial drives, especially where misalignment clutching or backside idlers are present A temporary replacement or permanent substitute for conventional rubber v-belts. Simply “Twist and Lock” belt tabs into place, no need for special tools. Made from pre-strectched polyester cord for industrial strength
Click Here to Learn More Click Here to Learn More Click Here to Learn More Click Here to Learn More
Customer Reviews
4.6 out of 5 stars
6
4.6 out of 5 stars
133
4.7 out of 5 stars
15
Price $33.82 $18.69 $44.75 $87.73
Even More from Bestorq Automotive Serpentine HTD Timing Belts Banded Cogged Banded Classic Wrap
Our Automotive “K” (or called ”PK”) belts are stocked in OEM quality EPDM construction with HMLS tension cords. This is the belt used on many Original Equipment cars around the world. A good !t in all three major metric round tooth pulley pro!les found in North America (RPP, HTD, and PGGT2) with clearance to enter and exit the di"erent pulley pro!le shapes.

Top reviews from the United States

VOD
5.0 out of 5 stars good value
Reviewed in the United States on July 3, 2024
belts work great and a great price. very good quality
Addison
5.0 out of 5 stars excellent fit
Reviewed in the United States on May 22, 2024
This was perfect for our shop fan and was at a great price!!!
D Stringer
5.0 out of 5 stars Belts
Reviewed in the United States on June 29, 2024
Good product
James A. Carvalho
4.0 out of 5 stars Well made
Reviewed in the United States on July 8, 2024
Nice quality finish
Ivan O. Durham
5.0 out of 5 stars fits good
Reviewed in the United States on June 29, 2024
fits my dr trimer mower, works as intended
Northstar S.
5.0 out of 5 stars Ok !
Reviewed in the United States on May 11, 2024
Works and fits well.
5280 High Altitude Living
5.0 out of 5 stars Long Lasting High Quality A60 vbelt
Reviewed in the United States on July 11, 2024
This BESTORQ A60 v-belt lasted 10 years on our whole house fan that is in our hot attic. When it finally broke we wanted to get the exact same brand. Hopefully this one will last 10 plus years like the original. We are also happy to have a back up as a spare with the 2 pack as it was not fun when the fan broke in the middle of a heat wave. We were able to get our fan back up and running in less than 24 hours thanks to Amazon’s overnight delivery.
Joe Ziadeh
5.0 out of 5 stars Belts for BearCat wood chipper
Reviewed in the United States on July 8, 2024
I purchased these for a bearcat wood chipper. They came fast and bought spares to have in case the belts brake again. I will definitely purchase again.

Best Sellers in

 
 

Goodyear 4LK410 Lawn and Garden Aramid V-Belt 1/2 x 41 in

4.5 4.5 out of 5 stars 84
17.31
 
 

D&D PowerDrive ORB-H-1119 Kevlar MTD CUB Cadet 754-04060B or 954-04060B Replacement Belt, 1/2" x 96", 4LK Section, Rubber

4.4 4.4 out of 5 stars 1287
18.94
 
 

Goodyear 5LK940 Lawn and Garden Aramid V-Belt 5/8 x 94 in

4.6 4.6 out of 5 stars 33
37.77
 
 

BESTORQ A16 or 4L180 V-Belt, Classic Wrapped Rubber X3 V-Belt, Black, 18" Outside Circumference x .51" Width x .34" Height, P

4.5 4.5 out of 5 stars 775
10.81
 
 

2 PCS 8mm x 331mm (0.315 x 13.03 inches) Vigorous Linear Motion Rods, Case Hardened Chrome Shaft Linear Rail Rod Shaft for 3D

4.6 4.6 out of 5 stars 85
9.39
 
 

2 Pcs UCP202-10 Pillow Block Bearing 5/8 inch Bore Mounted Pillow Bearing Cast Iron Base and Self Aligning Chrome Bearing

4.5 4.5 out of 5 stars 1254
15.74
 
 

GoHobby RC Ball Bearings 10-Pack Bearing Steel and Double Rubber Sealed Miniature Deep Groove Ball Bearings (10x15x4mm)

4.7 4.7 out of 5 stars 36
9.96
 
 

Goodyear B46 /5L490 Classical Wrapped Industrial V-Belt, 49" Outside Circumference

4.6 4.6 out of 5 stars 203
11.53