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4 in-stock alternatives found — cross-referenced equivalents ready to ship:
6203ZZ
Deep Groove Ball Bearing
6203ZZ
Deep Groove Ball Bearing
A single row radial deep groove ball bearing with double metal shields for general industrial applications.
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A single row radial deep groove ball bearing with double metal shields for general industrial applications.
Price Match Promise
Found it cheaper elsewhere? We’ll match any UK competitor’s price on bearings in stock — call us before you buy.
Technical Dimensions & Load Ratings
Confirm these values match your shaft, housing and application requirements before ordering.
Dimensions
| Bore Diameter (d) | 17mm |
| Outer Diameter (D) | 40mm |
| Width (B) | 12mm |
| Weight | 0.065kg |
Load & Speed Ratings
| Dynamic Load Rating (Cr) | 9.55kN |
| Static Load Rating (C0r) | 4.8kN |
| Reference Speed | 20000rpm |
6203ZZ
Deep Groove Ball Bearing
Technical Specifications
| Part Number | 6203ZZ |
| Brand | NSK |
| Bearing Type | Deep Groove Ball Bearing |
| Seal Type | ZZ |
| Material | Chrome Steel |
| Cross-Reference | 6203-2RS2-C3, 6203-2Z-C3, 6203ZZC3, 6203ZZNR, 6203ZZSS, 6203, 6203C3, 6203-C-2HRS-C3, 6203-H-2Z-C3, 6203-SP/WASHER |
| Bore (Inner Diameter) | 17 mm |
| Outer Diameter | 40 mm |
| Width / Thickness | 12 mm |
| Dynamic Load Rating (Cr) | 9.55 kN |
| Static Load Rating (C0r) | 4.8 kN |
| Reference Speed | 20,000 rpm |
| Approximate Weight | 0.065 kg |
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Technical Datasheet
Download full specifications for 6203ZZ — dimensions, load ratings, and material data.
NSK Technical Resources
Equivalent part numbers from other manufacturers that can be used as direct replacements for 6203ZZ.
Engineering support
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About the NSK 6203ZZ
The NSK 6203ZZ, is a deep groove ball bearing, with double metal shields for low-friction, high-speed running, featuring a 17mm bore, 40mm outer diameter, and 12mm width, manufactured from chrome steel, and is extended stock at Buy Bearings.
A single row radial deep groove ball bearing with double metal shields for general industrial applications.
Key Specifications
The 6203ZZ deep groove ball bearing is specified with 17mm bore (inner diameter), 40mm outer diameter, 12mm width, 9.55kN dynamic load rating, 4.8kN static load rating, 20,000rpm reference speed, 0.065kg approximate weight. The ZZ sealing arrangement protects against contamination and retains lubricant for extended service life. The chrome steel construction provides excellent wear resistance and durability in demanding operating conditions.
Common Applications
Deep Groove Ball Bearings are commonly used in:
About Deep Groove Ball Bearings
Deep groove ball bearings are the most widely used bearing type, capable of carrying both radial and axial loads in either direction. Their low friction and high speed capability makes them suitable for a broad range of applications from electric motors to household appliances.
Why Buy the 6203ZZ from Buy Bearings?
- UK-authorised distributor with genuine NSK products
- Expert technical support from our engineering team
- Competitive pricing with fast UK dispatch
- Full technical datasheet and cross-reference support
- 30-day returns on standard products
Frequently Asked Questions
What is a 6203ZZ bearing?
The 6203ZZ is a NSK Deep Groove Ball Bearing with a 17mm bore, 40mm outer diameter and 12mm width. It is Extended Stock at Buy Bearings.
What are the 6203ZZ dimensions?
The 6203ZZ measures 17mm bore (inner diameter) × 40mm outer diameter × 12mm width.
What does ZZ mean on a bearing?
ZZ (two metal shields) bearings are shielded rather than sealed — they offer low friction and high speed but less protection against moisture than rubber seals.
What is the 6203ZZ cross-reference?
The 6203ZZ is interchangeable with 6203-2RS2-C3, 6203-2Z-C3, 6203ZZC3, 6203ZZNR, 6203ZZSS, 6203, 6203C3, 6203-C-2HRS-C3, 6203-H-2Z-C3, 6203-SP/WASHER. Contact our team to confirm an exact equivalent for your application.
Is the 6203ZZ in stock?
The 6203ZZ is Extended Stock at Buy Bearings. Submit an enquiry or call our sales team for current stock and pricing (POA).
Related & Compatible Bearings
Same deep groove ball bearing, closest dimensions first — useful if you need a slightly different size or this part is unavailable.
Related Parts — Seals & Bushings
Matching seals and bushings for 17mm shaft diameter — complementary components for your bearing.
