6702 Deep Groove Ball Bearings
| 6702 Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 6702 | Ball Number | 14 |
| d | 15 | Ball Size | 1.588 |
| D1 | 21 | Dynamic Load Co(N) | 940 |
| B | 4 | Static Load Cor(N) | 585 |
| R | 0.2 | Grease Speed | 29000 |
| Weight(Kg) | 0.0036 | Oil Speed | 34000 |
6702 Bearing | Open / ZZ / RS Seal Types & Multi-Material Specifications And Applications
The 6702 bearing is a compact thin-wall deep groove ball bearing with 15×21×4mm standard size, featuring low noise, low friction and stable high-speed operation. It supports Open, ZZ, RS three seal types and multiple material grades, widely used in precision electronics, medical devices, automation and general industrial equipment.
6702 Bearing Seal Type Introduction
6702 Open: Seal-free structure ensures minimal friction and excellent heat dissipation. It allows easy lubrication and maintenance, delivering stable ultra-high-speed performance. Ideal for clean, dry indoor scenarios such as precision spindles and electronic transmission components.
6702ZZ (Double Metal Shield): Double-sided non-contact metal shields block dust and solid impurities effectively. With low resistance and high temperature resistance, it maintains steady high-speed operation, perfect for small motors, precision instruments and office equipment in dry, slightly dusty environments.
6702RS (Double Rubber Seal): Contact rubber seals provide excellent waterproof, dustproof and anti-fouling capacity. It adapts to humid and dusty working conditions with maintenance-free performance, suitable for medium-speed home appliances, outdoor devices and automation accessories.
6702 Bearing Material Properties And Applications
Bearing Steel: Standard industrial grade with high hardness, superior wear resistance and strong load capacity. Cost-effective for general machinery, motors and conventional precision industrial parts.
304 Stainless Steel: Features reliable rust resistance and stable mechanical strength, suitable for light industry machinery, civilian electronic parts and ordinary outdoor equipment under normal humid conditions.
420 Stainless Steel: Offers high hardness, good toughness and mild corrosion resistance, ideal for high-precision instruments and lightweight medical micro-equipment with light-load demands.
440 Stainless Steel: Boasts ultra-high hardness and outstanding wear & rust resistance, applicable to high-precision mechanical parts and hydraulic equipment in moderately corrosive environments.
316 Stainless Steel: Provides excellent acid-base, corrosion and oxidation resistance, adapting to harsh conditions for chemical, marine, food machinery and medical sanitation equipment.
Core Advantages: 6702 bearings feature complete specifications, diverse seals and materials, high precision, low noise and long service life, covering civilian, industrial, medical and marine application fields.
