--- product_id: 104396884 title: "4PCS U Type Groove Plastic Guide Bearing Pulley Wheel 34mm Outer Diameter 8mm Shaft Hole for Max-Load 79kg, Sliding Door Window Roller, Office Equipment Roller" brand: "cnbtr" price: "542240₫" currency: VND in_stock: true reviews_count: 13 category: "Cnbtr" url: https://www.desertcart.vn/products/104396884-4pcs-u-type-groove-plastic-guide-bearing-pulley-wheel-34mm store_origin: VN region: Vietnam --- # 8mm Shaft Hole 34mm Outer Diameter Max Load 79kg 4PCS U Type Groove Plastic Guide Bearing Pulley Wheel 34mm Outer Diameter 8mm Shaft Hole for Max-Load 79kg, Sliding Door Window Roller, Office Equipment Roller **Brand:** cnbtr **Price:** 542240₫ **Availability:** ✅ In Stock ## Summary > 🛠️ Upgrade your glide game — smooth moves, heavy loads, zero compromises! ## Quick Answers - **What is this?** 4PCS U Type Groove Plastic Guide Bearing Pulley Wheel 34mm Outer Diameter 8mm Shaft Hole for Max-Load 79kg, Sliding Door Window Roller, Office Equipment Roller by cnbtr - **How much does it cost?** 542240₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/104396884-4pcs-u-type-groove-plastic-guide-bearing-pulley-wheel-34mm) ## Best For - cnbtr enthusiasts ## Why This Product - Trusted cnbtr brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heavy-Duty Load Capacity:** Supports up to 79kg (174lbs), making it ideal for demanding industrial and home applications. - • **Smooth & Silent Operation:** Ball bearing design reduces friction for effortless, whisper-quiet sliding performance. - • **Trusted Quality Assurance:** Each set of 4 pulleys comes with a unique MPN label guaranteeing genuine, quality-inspected products. - • **Optimized Size for Seamless Fit:** 34mm outer diameter with a precise 8mm shaft hole ensures perfect compatibility with your sliding doors and office equipment. - • **Precision Engineered Durability:** Crafted from high-grade bearing steel and engineering plastics for long-lasting wear resistance. ## Overview The CNBTR 4PCS U Type Groove Plastic Guide Bearing Pulley Wheel set features a 34mm outer diameter and 8mm shaft hole, engineered from durable bearing steel and plastics. Designed to support up to 79kg, these pulleys deliver smooth, low-friction operation for sliding doors, windows, and office equipment. Each set includes 4 high-quality pulleys with verified authenticity, ensuring reliable performance and easy installation. ## Description Specifications: Bearing Model: 608ZZ Material: Engineering plastics, bearing steel Brand: CNBTR Color: White Inner diameter: 8mm Outside diameter: 34mm Thickness: 10.5mm Groove width: 6.4mm Groove Depth: 4.5mm Radius: R=3.2mm Weight: 64g Bearing Weight: 79KG Features: 1.[Product Size 1] Overall Size: Outside Diameter 34mm/1.34inch, Height 10.5mm/0.41inch. Please confirm the correct size before purchasing. 2.[Product Size 2] U Type Groove: Width 6.4mm/0.25inch, Depth 4.5mm/0.177inch. Shaft Hole Diameter: 8mm/0.31inch. 3.[Material] Made of bearing steel material, not easy to wear, and lasting performance. It's a great substitute for your product. 4.[Application] Max Load-bearing: 79kg/174lbs. Suitable for the replacement and installation of pulley such as sliding window, door, printer machine, etc. 5.If you have any question about the product, feel free to contact the CNBTR Service and we will try our best to give you a satisfactory answer. Package Content: 4 x bearing guide pulley The unique MPN label on each inner package, which confirm it passed the quality inspection and it is genuine item sold from our shop. Please offer it to us when you need assistance. Review: Good product - Worked well Review: Pulley for guiding steel cable - Used as a cable guide when I was rebuilding a rototiller. I also purchased 3/8 round steel that was a foot long and fabricated a shaft to hold the pulley. It worked really well. The pulley is strong and performed as hoped. ## Features - [Material] Made of bearing steel material, not easy to wear, and lasting performance. It's a great substitute for your product.Rolling bearings use rolling elements to keep the separation between moving parts to reduce rotational friction. - [Size] Overall Size: Outside Diameter 34mm/1.34inch, Height 10.5mm/0.41inch. Please confirm the correct size before purchasing. - [Product Size 2] U Type Groove: Width 6.4mm/0.25inch, Depth 4.5mm/0.177inch. Shaft Hole Diameter: 8mm/0.31inch. - [Application] Max Load-bearing: 79kg/174lbs. Suitable for the replacement and installation of pulley such as sliding window, door, printer machine, etc. - If you have any question about the product, feel free to contact the CNBTR Service and we will try our best to give you a satisfactory answer. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07D8PZ34Q | | Batteries Included? | No | | Batteries Required? | No | | Bearing Number | 608ZZ | | Bearing Type | Ball Bearing | | Best Sellers Rank | #183,316 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,229 in Deep-Groove Ball Bearings | | Brand | CNBTR | | Color | White | | Compatible Lubricant | Oil or Grease | | Customer Reviews | 4.4 4.4 out of 5 stars (288) | | Date First Available | May 24, 2018 | | Is Discontinued By Manufacturer | No | | Item Thickness | 10.5 Millimeters | | Item Weight | 2.11 ounces | | Item model number | M6180521110 | | Manufacturer | yqltd | | Material | POM+Steel | | Measurement System | Metric | | Outside Diameter | 34 Millimeters | | Package Dimensions | 2.6 x 2.48 x 0.55 inches | | Part Number | M6180521110 | | Size | 8*34*10.5mm | ## Product Details - **Bearing Number:** 608ZZ - **Bearing Type:** Ball Bearing - **Brand:** CNBTR - **Item Thickness:** 10.5 Millimeters - **Material:** POM+Steel ## Images ![4PCS U Type Groove Plastic Guide Bearing Pulley Wheel 34mm Outer Diameter 8mm Shaft Hole for Max-Load 79kg, Sliding Door Window Roller, Office Equipment Roller - Image 1](https://m.media-amazon.com/images/I/61tO+yrAsEL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good product *by A***W on June 13, 2025* Worked well ### ⭐⭐⭐⭐⭐ Pulley for guiding steel cable *by T***. on December 3, 2025* Used as a cable guide when I was rebuilding a rototiller. I also purchased 3/8 round steel that was a foot long and fabricated a shaft to hold the pulley. It worked really well. The pulley is strong and performed as hoped. ### ⭐⭐⭐⭐ Would buy again *by R***N on December 5, 2020* Came quick and exactly how it was pictured... great product!!! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/104396884-4pcs-u-type-groove-plastic-guide-bearing-pulley-wheel-34mm](https://www.desertcart.vn/products/104396884-4pcs-u-type-groove-plastic-guide-bearing-pulley-wheel-34mm) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-17*