688zz O Type Plastic Roller Pulley d8*D25*6mm
Custom 688ZZ Nylon and POM Arc-Type Plastic Pulley | 8*25*6mm
The custom 688ZZ arc-type plastic pulley is a non-standard rounded groove pulley with Nylon and POM options. Equipped with double shielded dustproof 688ZZ steel bearing, this 8*25*6mm arc groove pulley offers ultra-smooth, low-friction and quiet rolling for light-duty linear guide and transmission systems.
Product Specifications
Model: Non-standard 688ZZ Arc-Type Plastic Pulley
Overall Dimension: 8× 25r × 6mm
Bearing Type: 688ZZ double metal shielded bearing
Optional Material: Nylon, POM (Acetal)
Structure: Embedded steel bearing + precision arc rounded groove plastic body
Core Features
Crafted with high-grade Nylon and POM materials, this 688ZZ arc pulley features excellent wear resistance and anti-aging performance. The built-in dustproof bearing ensures long-term stable and low-noise operation. Finely polished arc groove effectively prevents cable scratch and rolling jamming. Slim 6mm thin-body non-standard design fits compact installation and custom mechanical structures.
Material Advantages
Nylon: Lightweight, high toughness and cost-efficient, perfect for conventional light-load silent rolling scenarios.
POM: High hardness, ultra-low friction and stable dimensional accuracy, ideal for high-frequency cyclic operation. Both plastic materials reduce operating noise and mechanical wear better than metal pulleys.
Application Scenarios
This 688ZZ Nylon and POM arc-type pulley is widely used in precision automation equipment, miniature linear sliding systems, cable transmission mechanisms, smart machinery and compact customized mechanical devices.
