Product Overview
The 6202ZZ bearing is a single-row deep groove ball bearing designed for applications requiring reliable radial load support with moderate axial load capacity. Its ZZ (metal shield) configuration on both sides protects the internal lubricant from dust and debris, extending service life in environments where airborne contaminants are present. Manufactured from high-carbon chromium GCr15 bearing steel, this 6202ZZ bearing delivers consistent dimensional stability and rolling fatigue resistance under continuous operation. The pressed steel cage ensures uniform ball spacing, reducing noise and vibration at high rotational speeds. With a 15×35×11mm envelope, this bearing is a standard metric size widely used across industrial machinery and automotive assemblies, making it an ideal replacement part for routine maintenance programs.
Technical Specifications — 6202ZZ Bearing
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| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Bore Diameter | d | 15 | mm |
| Outside Diameter | D | 35 | mm |
| Width | B | 11 | mm |
| Chamfer Dimension | r (min.) | 0.6 | mm |
| Bearing Material (Outer/Inner Ring, Ball) | — | GCr15 Bearing Steel | — |
| Cage Material | — | Pressed Steel Cage | — |
| Seals / Shields | — | Shield on Both Sides (ZZ) | — |
| Basic Dynamic Load Rating | Cr | 8400 | N |
| Basic Static Load Rating | C0r | 3750 | N |
| Limiting Speed — Grease Lubrication | — | 21000 | rpm |
| Mass (approx.) | — | 0.045 | kg |
All dimensions and tolerances conform to ISO 492 and ISO 199 rolling bearing standards, ensuring interchangeability and consistent fit across global supply chains.
Features and Benefits
- Double Metal Shields (ZZ) — Retains grease lubrication while blocking particulate ingress, reducing maintenance frequency in dusty industrial environments.
- GCr15 Bearing Steel Construction — High-carbon chromium steel provides excellent hardness and rolling contact fatigue life, extending operational service intervals.
- Pressed Steel Cage — Lightweight, guided cage minimizes friction and running noise at speeds up to 21,000 rpm.
- Standard Metric Dimensions — 15×35×11mm envelope matches widely available housings and shafts, simplifying cross-referencing and stock management.
- High Radial Load Capacity — 8400 N dynamic load rating handles moderate-to-heavy radial loads common in motor and pump applications.
Applications
Electric Motors and Power Tools
The 6202ZZ bearing’s shielded design and high speed rating make it a common choice for fractional-horsepower electric motors and handheld power tools where basic protection against large debris is beneficial, and where high rotational speed is prioritized over complete sealing.
- AC and DC electric motors (frame sizes 48-56)
- Angle grinders, drills, and circular saws
- Cooling fan assemblies and blowers
Automotive and Light Machinery
Many automotive ancillaries and light industrial machines rely on the 6202 size for compact, low-friction rotation in idler pulleys, alternators, and conveyor rollers.
- Alternator pulleys and belt tensioners
- Conveyor idler rollers and material handling equipment
General Industrial Equipment
As a standard metric deep groove ball bearing, the 6202ZZ is widely stocked as a maintenance, repair, and operations (MRO) item across manufacturing facilities.
- Pump and compressor shafts
- Textile machinery spindles
- Agricultural equipment drive trains
For a full range of shielded bearings, explore our Deep Groove Ball Bearings collection.
Quality and Manufacturing
Each 6202ZZ bearing is manufactured from GCr15 bearing steel (equivalent to SAE 52100) through a controlled heat-treatment process that achieves a uniform hardness of 60-65 HRC. The raceways are precision-ground to P0 (ABEC-1) tolerance class, ensuring dimensional consistency and quiet running. Before sealing, each bearing undergoes a grease packing and shield assembly process followed by rotational noise and torque inspection. Production batches are traceable through lot numbers stamped on the packaging.
Why Choose Us for 6202ZZ Bearing
We manufacture the 6202ZZ to ISO standards on our own grinding lines, with a proven track record in global export markets. Every shipment is verified for bore diameter, outer diameter, and running noise before release—because we control the process from raw material to finished bearing.
- Competitive lead times — Standard orders ship within 7-15 working days; express options available for urgent requirements.
- Flexible MOQ — Low minimum order quantities for sample evaluation; volume discounts for OEM and wholesale contracts.
- Export expertise — Experience with FOB, CIF, and DDP Incoterms across major ports; professional export documentation included.
- After-sales support — Technical response within 24 hours; warranty coverage on all delivered batches.
Frequently Asked Questions
What are the exact dimensions of a 6202ZZ bearing?
The 6202ZZ bearing has a 15 mm bore diameter (d), 35 mm outside diameter (D), and 11 mm width (B). The minimum chamfer dimension is 0.6 mm.
What does the ZZ suffix mean on a 6202 bearing?
ZZ indicates that the bearing has metal shields on both sides. These shields are non-contact covers that retain grease lubrication and provide a basic barrier against large debris, without adding friction at high speeds. For environments with fine dust or moisture, a sealed (2RS) version is recommended.
What is the load rating of the 6202ZZ bearing?
The basic dynamic load rating (Cr) is 8400 N, and the basic static load rating (C0r) is 3750 N. These ratings represent the bearing’s capacity to sustain radial loads under rotating and stationary conditions respectively.
What is the maximum speed for a 6202ZZ bearing?
The limiting speed with grease lubrication is 21,000 rpm. Actual achievable speed depends on load conditions, operating temperature, and housing fit — these values assume standard ISO fitting tolerances and moderate loads.
What material is the 6202ZZ bearing made from?
The rings and balls are made from GCr15 bearing steel (high-carbon chromium steel, comparable to SAE 52100). The cage is pressed steel, and the shields are stamped metal — no rubber or polymer contact parts on the rotating surfaces.
