---
product_id: 221000939
title: "Letool 4pcs 608zz coated pa66 nylon 1.57inches bearing roller wheel 8x40x20mm U type groove pulley"
brand: "lyjee"
price: "$93"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/221000939-letool-4pcs-608zz-coated-pa66-nylon-1-57inches-bearing-roller
store_origin: NZ
region: New Zealand
---

# Precision 608ZZ bearing Reinforced nylon + stainless steel Max load 167kg/368lbs Letool 4pcs 608zz coated pa66 nylon 1.57inches bearing roller wheel 8x40x20mm U type groove pulley

**Brand:** lyjee
**Price:** $93
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your gear with precision and power — don’t get left behind!

## Quick Answers

- **What is this?** Letool 4pcs 608zz coated pa66 nylon 1.57inches bearing roller wheel 8x40x20mm U type groove pulley by lyjee
- **How much does it cost?** $93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/221000939-letool-4pcs-608zz-coated-pa66-nylon-1-57inches-bearing-roller)

## Best For

- lyjee enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** At just 26.3g per wheel, these pulleys deliver strength without bulk, optimizing your machinery’s efficiency.
- • **Versatile Application:** Ideal for doors, windows, dollies, and custom track systems—upgrade your equipment effortlessly.
- • **Engineered for Endurance:** Reinforced nylon and high-quality stainless steel ensure long-lasting, maintenance-free performance.
- • **Heavy-Duty Load Capacity:** Supports up to 167kg (368lbs), perfect for demanding industrial and mechanical applications.
- • **Precision U-Groove Design:** Exact 8mm inner diameter and 40mm outer diameter for smooth, stable operation with minimal noise.

## Overview

The Letool 4pcs 608ZZ coated PA66 nylon bearing roller wheels combine reinforced nylon and stainless steel for durability and smooth, quiet operation. Featuring a precise U-groove with an 8mm inner diameter and 40mm outer diameter, these wheels support heavy loads up to 167kg, making them ideal for industrial and mechanical track systems, doors, and dollies. Lightweight yet robust, they offer a maintenance-free solution engineered in the USA for professional-grade performance.

## Description

Letool 4pcs 608zz coated pa66 nylon 1.57inches bearing roller wheel 8x40x20mm U type groove pulley

## Features

- 【PREMIUM MATERIAL】Made of reinforced nylon and high quality stainless steel which can ensure a long term service. high precision, maintenance-free and long service life.
- 【U-GROOVE SIZE】Inner Diameter: 8mm/0.3in, Outer Diameter: 40mm/1.6in, Thickness: 20.7mm/0.8in.
- 【OPERATION ADVANTAGES】: Stable and smooth operation, good mute effect, practical and durable.
- 【WIDELY USED】Widely used in doors and windows to track and drive mechanical equipments. These gadgets can be used to build the track system or replace the wheels on the dolly.
- 【Max Load-bearing】: the wheels are very strong and the bearing capacity is stronger.Max Load-bearing is 167kg/368lbs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | LYJEE |
| Material | High Carbon Steel |
| Item Weight | 26.3 Grams |
| Bearing Number | 608ZZ |
| Item Thickness | 20.5 Millimetres |
| Bearing Type | Roller Bearing |
| Compatible Lubricant | Grease |
| Outside Diameter | 40 Millimetres |
| Manufacturer | Letool International Ltd. |
| Country of Origin | USA |
| Item model number | U0840-20 |
| Package Dimensions | 7.7 x 4.6 x 4.29 cm; 26.3 g |
| ASIN | B01M9G96S6 |

## Product Details

- **Brand:** LYJEE
- **Material:** High Carbon Steel
- **Item Weight:** 26.3 Grams
- **Bearing Number:** 608ZZ
- **Item Thickness:** 20.5 Millimetres

## Images

![Letool 4pcs 608zz coated pa66 nylon 1.57inches bearing roller wheel 8x40x20mm U type groove pulley - Image 1](https://m.media-amazon.com/images/I/61zjJxzFKKL.jpg)

## Questions & Answers

**Q: Wanting to use for a children's sensory board.  Would these work for wheels like for a car...etc. What kind of hardware to connect on board?**
A: These are concave so more of a pulley than a car wheel.  You would use ordinary 1/4 bolts to fasten.  They are good quality and run very smoothly.

**Q: Does anyone know the id of the black part? or in other words the od of the bearing? i am trying to find a spacer that will fit inside. thanks.**
A: OD that is visible is 20mm ( 13/32" ). The rest of the race is embedded in the plastic. There is not enough outer race visible to put a spacer against it. I I used nylon spacers of 12mm ( 1/2" ) in diameter mated to the inner race on both sides of the bearing. A machine bolt fits nicely into the hole of the nylon spacer to mount it to whater you like.

**Q: What load can these handle?**
A: I do not know. They are very hefty.

**Q: What's the inner diameter of the wheel where bearing sits**
A: I don't have one to measure and the information in the Amazon listing only shows the inner diameter of the bearing, not the rubber groove. I suggest you contact the vendor through the Amazon link

## Frequently Bought Together

- Letool 4pcs U Type Groove Pulley Nylon Guide Pulley Rolling Bearing U Groove Roller Wheel 8x40x20mm for Driving Mechanical Equipment, or Used in Doors and Windows
- CNBTR 4Pieces 6x30x13mm Plastic Coated Sealed Bearings Steel 606ZZ Deep U Groove Guide Pulley Rail Ball Rolling Bearing Wheel Orange
- 5Pcs Deep T Groove Flat Bottom Bearing, Stainless Steel Pulley Wheel for Wire Rope

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**Shop now:** [https://www.desertcart.nz/products/221000939-letool-4pcs-608zz-coated-pa66-nylon-1-57inches-bearing-roller](https://www.desertcart.nz/products/221000939-letool-4pcs-608zz-coated-pa66-nylon-1-57inches-bearing-roller)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-11*