# MasterDrive 4/B128 B Section Classical Wrapped V-Belt 128" Outside Length - MROSupply.com

***MasterDrive 4/B128 B-section classical wrapped V-belt, 128-inch outside length. Industrial neoprene compound with polyester tensile cord for reliable power transmission in HVAC, agricultural, and general industrial belt drives.***



## Product details:

- Catalog number: 4/B128
- SKU: 2336314
- Price: ***$150.43*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [MasterDrive](https://www.mrosupply.com/brands/masterdrive/)
- Category: 
    - [B Section](htts://www.mrosupply.com/v-belts/banded-v-belts/b-section/)
    - [Banded V-Belts](htts://www.mrosupply.com/v-belts/banded-v-belts/)
    - [V-Belts](htts://www.mrosupply.com/v-belts/)
- Unit of measure: each
- Weight: 10.000 lb
- Technicall support: contact supplier for technical support on 888-922-8767


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- Bore Type: QD Bushed
  

  
- Bushing Size: SD
  

  
- Bushing Type: QD
  

  
- Finish/Coating: Grey Painted Protective Coating
  

  
- k in: 0.3125 in
  

  
- Length Through Bore: 1.8125 in
  

  
- OD: 3.95 in
  

  
- Series: A-B QD Sheaves
  

  
- Sheave Construction: Solid
  

  
- Sheave/Pulley Type: E-1
  

  
- Type: QD Style Heavy Duty V-Belt Sheaves
  

## Alternate products to `MasterDrive 4/B128 B Section Classical Wrapped V-Belt 128" Outside Length - MROSupply.com`:
- [Timken Belts (Carlisle) RBP128-4 Super Blue Ribbon Band B section banded V-belt, 131" outside length, 21/32" top width per rib, 7/16" depth, 4 ribs. Wrapped neoprene construction with polyester tension cords for industrial drives. Formerly sold as Carlisle RBP128-4. ISO 9001:2015 manufactured.](https://www.mrosupply.com/products/2018962/as-markdown/)
- [Bando 4B128 Power King 4-band banded B section classical V-belt with 131" outside length. Each rib has 21/32" top width and 7/16" depth. Chloroprene rubber with polyester tension cord. Suitable for industrial drives requiring reliable power transmission. Conforms to RMA IP-23 standards.](https://www.mrosupply.com/products/675695/as-markdown/)
- [Gates 90934128 4/B128 Hi-Power II PowerBand V-Belt with B section, 128" effective length, and 4 bands. Designed for industrial drives requiring multiple belts in a single banded unit to reduce whip and turnover. Features a fiber-loaded EPDM compound for oil and heat resistance.](https://www.mrosupply.com/products/1241805/as-markdown/)
- [Timken Belts (Carlisle) RBX128-4 Gold-Ribbon Cog-Band BX section banded cogged V-belt, 131" outside length, 21/32" top width per rib, 7/16" depth, 4 ribs. Cogged construction with EPDM compound and polyester tension cord for flexibility and heat resistance. Suitable for industrial drives requiring vibration resistance and high power transmission. Formerly sold as Carlisle RBX128-4.](https://www.mrosupply.com/products/2020286/as-markdown/)
- [TB Woods 4RBX128 banded V-belt with 4 ribs, BX section, 131" outside length, and cogged construction. Each rib has a 21/32" top width and 7/16" depth. Designed for industrial multiple-belt drives requiring matched power transmission.](https://www.mrosupply.com/products/832576/as-markdown/)
- [Gates 4/BX128 Tri-Power PowerBand V-Belt with BX cogged section, 128-inch effective length, and 4-band construction. Designed for heavy-duty industrial drives requiring high shock-load resistance and minimal vibration. Features Gates proprietary Tri-Power cogged profile for enhanced flexibility and heat dissipation on smaller pulley diameters.](https://www.mrosupply.com/products/2384970/as-markdown/)
- [TB Woods 4RBP128 banded V-belt with 4 ribs, B section (21/32" top width, 7/16" depth per rib), and 128" outside length. Designed for multi-belt drives requiring matched tension and load sharing. Raw-edge construction for reduced bending resistance and cooler operation on small-diameter sheaves.](https://www.mrosupply.com/products/833240/as-markdown/)
- [Jason Industrial 4/B128 4-band banded classical V-belt, B section, 21/32" top width per rib, 7/16" depth per rib, 128" outside length. Chloroprene rubber body with polyester tension cord and fabric cover for heavy-duty industrial drives requiring multiple-belt stability and matched performance.](https://www.mrosupply.com/products/1987612/as-markdown/)

## Product's reviews:
- Quality product - Heavy duty. Not likely to bend or warp
- Great deal - Very good customer service, great prices and super fast shipping!!! Will buy again!!
- Masterdrive - I'VE USED LOTS OF MASTER DRIVE PRODUCTS AND ALL OF THEM HAVE BEEN EXCELLENT QUALITY.
- Just what i needed - I needed a very small belt for my rock polisher, and it was just the right size.