---
product_id: 616177027
title: "uxcell 4pcs U Type Groove Pulley Nylon Guide Rolling Bearing 8x45x11.5mm U Groove Roller Wheel for Door Window, Black"
brand: "uxcell"
price: "$28.73"
currency: USD
in_stock: true
reviews_count: 10
category: "Uxcell"
url: https://www.desertcart.us/products/616177027-uxcell-4pcs-u-type-groove-pulley-nylon-guide-rolling-bearing
store_origin: US
region: United States of America
---

# Durable chromium steel core Smooth nylon U-groove roller Precision ABEC 1 tolerance uxcell 4pcs U Type Groove Pulley Nylon Guide Rolling Bearing 8x45x11.5mm U Groove Roller Wheel for Door Window, Black

**Brand:** uxcell
**Price:** $28.73
**Availability:** ✅ In Stock

## Summary

> 🛠️ Glide into flawless motion with uxcell’s precision pulleys!

## Quick Answers

- **What is this?** uxcell 4pcs U Type Groove Pulley Nylon Guide Rolling Bearing 8x45x11.5mm U Groove Roller Wheel for Door Window, Black by uxcell
- **How much does it cost?** $28.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/616177027-uxcell-4pcs-u-type-groove-pulley-nylon-guide-rolling-bearing)

## Best For

- uxcell enthusiasts

## Why This Product

- Trusted uxcell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Fit:** U-groove design (6mm width, 3mm depth) perfectly matches standard rail track systems for effortless installation.
- • **Built to Last:** Chromium steel bearings shielded on both sides lock in lubricant for long-lasting durability.
- • **Silent Efficiency:** Z1 noise level rating means whisper-quiet operation, keeping your workspace calm and professional.
- • **Versatile Application:** Ideal for sliding doors, windows, and mechanical equipment—upgrade your setup with confidence.
- • **Engineered for Precision:** ABEC 1 tolerance ensures ultra-smooth, low-noise operation for professional-grade performance.

## Overview

The uxcell 4pcs U Type Groove Pulley features 8x45x11.5mm nylon rollers with chromium steel ball bearings, engineered to ABEC 1 standards for smooth, low-noise operation. Shielded on both sides to retain lubricant, these durable pulleys fit standard U-groove rail tracks, making them perfect for doors, windows, and industrial mechanical systems.

## Description

uxcell 4pcs U Type Groove Pulley Nylon Guide Rolling Bearing 8x45x11.5mm U Groove Roller Wheel for Door Window, Black: desertcart.com: Industrial & Scientific

Review: High quality great fit - These fit my Four Winds 32ft Class C shower door top roller.
Review: NICE - These nylon rollers are exactly what I wanted for my hydraulic press table lift project. A+++.

## Features

- U Groove Bearing: I.D.=8mm, O.D.=45mm, Thickness=11.5mm, Groove width=6mm, Groove depth=3mm.
- These bearings are shielded on both sides to keep lubricant in
- Chromium Steel long-life bearings, smooth and low noise
- ABEC Tolerance 1 (P0), Z1 Noise Level for most general use
- U-type pulley bearing fits the rail track system. Widely used in door and window to track and drive mechanical equipment.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CQJT74JF |
| Bearing Number | 4 |
| Bearing Type | Ball Bearing |
| Best Sellers Rank | #61,669 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #304 in Deep-Groove Ball Bearings |
| Brand | uxcell |
| Compatible Lubricant | Oil |
| Date First Available | December 18, 2023 |
| Item Thickness | 11.5 Millimeters |
| Item Weight | 4.2 ounces |
| Manufacturer | uxcell |
| Material | Chrome Steel (GCr15) , Nylon |
| Outside Diameter | 45 Millimeters |
| Package Dimensions | 5.47 x 3.98 x 0.59 inches |
| Specification Met | ABEC 1 |

## Product Details

- **Bearing Number:** 4
- **Brand:** uxcell
- **Item Thickness:** 11.5 Millimeters
- **Material:** Chrome Steel (GCr15) , Nylon
- **Specification Met:** ABEC 1

## Images

![uxcell 4pcs U Type Groove Pulley Nylon Guide Rolling Bearing 8x45x11.5mm U Groove Roller Wheel for Door Window, Black - Image 1](https://m.media-amazon.com/images/I/71sAJaSRN-L.jpg)

## Available Options

This product comes in different **Color, Size, Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ High quality great fit
*by B***A on November 24, 2025*

These fit my Four Winds 32ft Class C shower door top roller.

### ⭐⭐⭐⭐⭐ NICE
*by R***2 on November 20, 2025*

These nylon rollers are exactly what I wanted for my hydraulic press table lift project. A+++.

### ⭐⭐⭐⭐⭐ Quality
*by J***S on November 6, 2025*

Ok

## Frequently Bought Together

- uxcell 4pcs U Type Groove Pulley Nylon Guide Rolling Bearing 8x45x11.5mm U Groove Roller Wheel for Door Window, Black
- uxcell SG25 Deep U Groove Ball Track Guide Bearing 8mmx30mmx14mm Double Sealed (GCr15) Chrome Steel Bearing
- 5Pcs Deep U Groove Ball Track Guide Bearing, Stainless Steel Bearing Pulley Wheel Bearings Wheel Wire Rope Pulley

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**Shop now:** [https://www.desertcart.us/products/616177027-uxcell-4pcs-u-type-groove-pulley-nylon-guide-rolling-bearing](https://www.desertcart.us/products/616177027-uxcell-4pcs-u-type-groove-pulley-nylon-guide-rolling-bearing)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-17*