608-22-7C3L8 M6 /M3/M4/M5/External Threaded Shaft Screw Ball Bearing Factory

Product Description

Thread Ball Bearing 608-22-7C3L8 is a thread-mounted, flanged wheel with an integrated bearing designed to run on a rail, track, or inside a groove.

Features of Thread Ball Bearing 608-22-7C3L8

1. Integrated All-in-One Design

Feature: Combines a wheel, a high-capacity bearing (often a needle/thrust combination), and a mounting stud into one pre-assembled, ready-to-install unit.

Benefit: Eliminates the need to source and assemble separate bearings, axles, spacers, and housings. Drastically simplifies design and reduces part count.

2. External Thread Mounting

Feature: The central shaft is threaded, allowing it to be screwed directly into a tapped hole on a machine frame, carriage, or bracket.

Benefit:

Easy & Tool-Free Installation/Removal: Simplifies maintenance and replacement.

Axial Adjustment: By screwing the unit in or out, you can precisely set the wheel's position to adjust for preload, tension, or alignment (crucial for track systems).

No Additional Locking Needed: When properly torqued, the thread secures itself; locknuts or collars are often unnecessary.

3. High-Load Capacity in a Compact Size

Feature: Typically uses a needle roller bearing or a combination bearing. Needle bearings have many small-diameter rollers, providing a large contact area.

Benefit: Enables the small 22mm wheel to support very high radial loads (loads perpendicular to the thread axis) relative to its size. This is its primary strength.

4. Flanged Wheel (Pulley/Roller) Design

Feature: The outer "wheel" has a precision-machined tread and one or two flanges (rims).

Benefit:

Flanged (Guided): The flange acts as a guide to run inside a channel or along the edge of a rail, preventing lateral movement. Essential for linear motion systems.

Ungrooved (V-Groove): Some variants have a V-shaped groove to run on round rails or wires, providing traction and tracking.

Smooth (Idler): Can act as a simple idler roller or support wheel.

5. Sealed & Low Maintenance

Feature: The bearing cavity is typically pre-greased and sealed with integral seals or shields.

Benefit: Protects against dust, chips, and moisture, making it suitable for harsh industrial environments (packaging, woodworking, automation). Designed for lifetime lubrication in many applications.

Production Customization Process

Shenzhen Wanyuan Bearing Co., Ltd. is a professional bearing manufacturer integrating R&D and innovation. The company mainly produces metric bearings with inner diameters of 1-200MM, imperial bearings, spherical roller bearings, double-row cylindrical bearings, cylindrical roller bearings, four-point angular contact bearings, flange bearings, ceramic bearings and customized non-standard bearings.

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