---
product_id: 91518917
title: "CNBTR 4PCS U-Type Pulley Wheel 0.31X1.77X0.45inches U Groove Bearing for Doors and Windows with Steel Bearings 8mm Shaft Hole 45mm"
brand: "cnbtr"
price: "₩37056"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/91518917-cnbtr-4pcs-u-type-pulley-wheel-0-31x1-77x0-45inches
store_origin: KR
region: South Korea
---

# Smooth 608ZZ ball bearing Precision 45mm diameter Durable plastic-coated steel CNBTR 4PCS U-Type Pulley Wheel 0.31X1.77X0.45inches U Groove Bearing for Doors and Windows with Steel Bearings 8mm Shaft Hole 45mm

**Brand:** cnbtr
**Price:** ₩37056
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your glide game with precision and style!

## Quick Answers

- **What is this?** CNBTR 4PCS U-Type Pulley Wheel 0.31X1.77X0.45inches U Groove Bearing for Doors and Windows with Steel Bearings 8mm Shaft Hole 45mm by cnbtr
- **How much does it cost?** ₩37056 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/91518917-cnbtr-4pcs-u-type-pulley-wheel-0-31x1-77x0-45inches)

## 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

- • **Built to Last:** Robust plastic-coated steel construction ensures long-term durability and resistance to wear in demanding environments.
- • **Compact Yet Mighty:** Precisely sized at 45mm diameter and 8mm shaft hole for versatile compatibility across multiple industrial and home applications.
- • **Sleek Black Finish:** Modern black coating adds a professional aesthetic that blends effortlessly with contemporary hardware setups.
- • **Ready for Multi-Project Use:** Set of 4 pulleys provides the perfect solution for replacements or upgrades, keeping your projects running smoothly.
- • **Engineered for Effortless Glide:** Experience frictionless motion with premium 608ZZ ball bearings designed for seamless sliding door and window operation.

## Overview

The CNBTR 4PCS U-Type Pulley Wheels feature a 45mm diameter and 8mm shaft hole, equipped with smooth 608ZZ ball bearings and a durable plastic-coated steel body. Designed for sliding doors, windows, and machinery, these pulleys deliver reliable, low-friction performance with a sleek black finish, making them an essential upgrade for professionals seeking efficiency and style.

## Description

Full description not available

## Features

- Premium-quality Material: These U-shaped plastic-coated bearing pulleys are fabricated from top-grade materials, guaranteeing robustness and long-term reliable performance.
- Exact Dimensions: outside diameter 45mm/1.77in; height 11.5mm/0.45in; Shaft hole diameter: 8mm/0.31in.The pulley window wheels are too small in size.Please check carefully the size before purchasing.
- Groove Size: width 6mm/0.24in; depth 3mm/0.12in; R=3mm/0.12in. Bearing Model 608ZZ.The pulley sliding door clamping wheel are precisely engineered to provide a seamless fit in a wide range of applications.
- Smooth and Efficient Operation: The expertly designed bearing ensures effortless and smooth movement, minimizing friction and energy consumption.Ideal for replacement roller of sliding window, door, printer machine etc.
- Black Finish: The black coating imparts a sophisticated and contemporary appearance, making them adaptable to various styles and environments.The package contains 4 pulleys, fulfilling your diverse requirements in multiple projects.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | CNBTR |
| Material | plastics |
| Item dimensions L x W x H | 1.77 x 0.45 inches |
| Bore Diameter | 8 Millimeters |
| Bearing Number | 608ZZ |
| Item Thickness | 11.5 Millimeters |
| Bearing Type | Ball Bearing |
| Compatible Lubricant | Grease |
| Outside Diameter | 45 Millimeters |
| Manufacturer | yqltd |
| Part Number | M6180521112 |
| Item Weight | 4.6 ounces |
| Item model number | M6180521112 |
| Is Discontinued By Manufacturer | No |
| Size | 8*45*11.5mm |
| Color | Black |
| Measurement System | Metric |
| Special Features | Smooth Motion |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** CNBTR
- **Material:** plastics
- **Item dimensions L x W x H:** 1.77 x 0.45 inches
- **Bore Diameter:** 8 Millimeters
- **Bearing Number:** 608ZZ

## Images

![CNBTR 4PCS U-Type Pulley Wheel 0.31X1.77X0.45inches U Groove Bearing for Doors and Windows with Steel Bearings 8mm Shaft Hole 45mm - Image 1](https://m.media-amazon.com/images/I/71A80uladlL.jpg)
![CNBTR 4PCS U-Type Pulley Wheel 0.31X1.77X0.45inches U Groove Bearing for Doors and Windows with Steel Bearings 8mm Shaft Hole 45mm - Image 2](https://m.media-amazon.com/images/I/81tEMNpfz1L.jpg)
![CNBTR 4PCS U-Type Pulley Wheel 0.31X1.77X0.45inches U Groove Bearing for Doors and Windows with Steel Bearings 8mm Shaft Hole 45mm - Image 3](https://m.media-amazon.com/images/I/81GVVXiZFQL.jpg)
![CNBTR 4PCS U-Type Pulley Wheel 0.31X1.77X0.45inches U Groove Bearing for Doors and Windows with Steel Bearings 8mm Shaft Hole 45mm - Image 4](https://m.media-amazon.com/images/I/71cCgFgUcjL.jpg)
![CNBTR 4PCS U-Type Pulley Wheel 0.31X1.77X0.45inches U Groove Bearing for Doors and Windows with Steel Bearings 8mm Shaft Hole 45mm - Image 5](https://m.media-amazon.com/images/I/71fb6eELbsL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by A***W on June 13, 2025*

Worked well

### ⭐⭐⭐⭐⭐ Great hardware
*by T***  on June 4, 2024*

Great wheels for home made barn door

### ⭐⭐⭐⭐ Would buy again
*by R***N on December 5, 2020*

Came quick and exactly how it was pictured... great product!!!

## Frequently Bought Together

- CNBTR 4PCS U-Type Pulley Wheel 0.31X1.77X0.45inches U Groove Bearing for Doors and Windows with Steel Bearings 8mm Shaft Hole 45mm
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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-25*