Deep groove ball bearing 6303-2Z – 17×47×14 mm

25 offers · 10 manufacturers · net prices from PLN 6.53 · dispatch in 2 working days

6303-2Z is a deep groove ball bearing with a 17 mm bore, 47 mm outside diameter and 14 mm width, with two metal shields (2Z) – non-contact, for higher speeds. The dimensions are standardised, so items from different manufacturers with the same clearance and sealing are interchangeable 1:1. All brands with current net prices are listed below.

bore d: 17 mm
outside D: 47 mm
width B: 14 mm
sealing: 2Z
mass: 0.11 kg
net price from: PLN 6.53

Dimension drawing 6303-2Z – one for all brands (ISO dimensions)

Main dimensions
d – bore diameter	17 mm
D – outside diameter	47 mm
B – width	14 mm
dynamic load rating C	13.5 kN (per SKF catalogue)
static load rating C₀	6.55 kN (per SKF catalogue)
mass	0.11 kg

Pictured: ZEN 6303-2Z. Every brand has its own product page with photo and full description.

Brands and prices 6303-2Z

Net price per piece, gross incl. 23% VAT. Selected items go into one enquiry – we reply within 24 h, with better prices for larger quantities.

Brand	Manufacturer designation	Clearance	Net price	Availability
ZEN	6303-2Z	CN	PLN 6.53PLN 8.03 gross	supplier stockdispatch in 2 working days
NKE	6303-2ZC3	C3	PLN 7.67PLN 9.43 gross	supplier stockdispatch in 2 working days
NKE	6303-2Z	CN	PLN 7.88PLN 9.69 gross	supplier stockdispatch in 2 working days
ZEN	6303-2ZC3	C3	PLN 8.43PLN 10.37 gross	supplier stockdispatch in 2 working days
INNE	6303-ZZECMEC design, machined brass cage (SKF)	CN	PLN 9.34PLN 11.49 gross	supplier stockdispatch in 2 working days
INNE	6303-ZZEC3reinforced design, higher load rating	C3	PLN 9.34PLN 11.49 gross	supplier stockdispatch in 2 working days
NSK	6303-ZZ	CN	PLN 9.88PLN 12.15 gross	supplier stockdispatch in 2 working days
NSK	6303 ZZC3	C3	PLN 9.88PLN 12.15 gross	supplier stockdispatch in 2 working days
FAG	6303-C-2Z (-2Z)	CN	PLN 9.93PLN 12.21 gross	supplier stockdispatch in 2 working days
FAG	6303-C-2Z-C3 (-2Z-C3)	C3	PLN 9.93PLN 12.21 gross	supplier stockdispatch in 2 working days
SKF	6303-ZZ	CN	PLN 10.26PLN 12.62 gross	supplier stockdispatch in 2 working days
SKF	6303-ZZC3	C3	PLN 10.26PLN 12.62 gross	supplier stockdispatch in 2 working days
TIMKEN	6303-ZZ-C3	C3	PLN 11.82PLN 14.54 gross	supplier stockdispatch in 2 working days
TIMKEN	6303-ZZ	CN	PLN 11.82PLN 14.54 gross	supplier stockdispatch in 2 working days
KOYO	6303 ZZCMclearance for electric motors (quiet running)	CN	PLN 11.98PLN 14.74 gross	supplier stockdispatch in 2 working days
KOYO	6303 ZZC3	C3	PLN 11.98PLN 14.74 gross	supplier stockdispatch in 2 working days
NSK	6303 ZZNR	CN	PLN 14.58PLN 17.93 gross	supplier stockdispatch in 2 working days
SKF	6303-ZZC3GJNriveted pressed steel cage	C3	PLN 18.90PLN 23.25 gross	supplier stockdispatch in 2 working days
NTN	6303-ZZNR2AS	CN	PLN 20.14PLN 24.77 gross	supplier stockdispatch in 2 working days
SKF	6303-ZZC3LHT23	C3	PLN 21.07PLN 25.92 gross	supplier stockdispatch in 2 working days
NTN	6303-ZZC45K	C4	PLN 21.82PLN 26.84 gross	supplier stockdispatch in 2 working days
SKF	6303-2Z/VA228	CN	PLN 242.63PLN 298.43 gross	supplier stockdispatch in 2 working days

▸Special designs 6303-2Z (3) – stainless steel, snap ring, manufacturer specials

NACHI	6303-ZZENRCMreinforced design, higher load rating, snap ring groove with snap ring, clearance for electric motors (quiet running)	CN	PLN 12.15PLN 14.94 gross	supplier stockdispatch in 2 working days
SKF	E2.6303-2Z/C3	C3	PLN 17.66PLN 21.72 gross	supplier stockdispatch in 2 working days
SKF	W6303-ZZ	CN	PLN 179.22PLN 220.44 gross	supplier stockdispatch in 2 working days

Can't see your brand? Ask for an offer – we reply within 24 h.

Other versions of 6303

The same size in another design – open, shielded, tapered bore.

How manufacturers designate 6303-2Z

Each brand uses its own seal and design codes. The designations below describe the same bearing.

Manufacturer	Designation	Sealing / design
SKF	6303-ZZ	2Z – metal shields, both sides
NSK	6303-ZZ	2Z – metal shields, both sides
ZEN	6303-2Z	2Z – metal shields, both sides
NKE	6303-2ZC3	2Z – metal shields, both sides
INNE	6303-ZZECM	2Z – metal shields, both sides
FAG	6303-C-2Z (-2Z)	2Z – metal shields, both sides
TIMKEN	6303-ZZ-C3	2Z – metal shields, both sides
KOYO	6303 ZZCM	2Z – metal shields, both sides
NTN	6303-ZZNR2AS	2Z – metal shields, both sides
NACHI	6303-ZZENRCM	2Z – metal shields, both sides

2RS, 2Z or C3 – which to choose?

2RS (two rubber seals) keeps dust and moisture out but limits speed. 2Z (metal shields) does not touch the ring, so it runs faster and cooler but protects less. 2RZ is the compromise – a non-contact seal.

Choose C3 clearance when the bearing runs hot (electric motors, fans) or with a tight shaft fit. Normal clearance CN is enough for ordinary applications.

The dimensions of 6303-2Z are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.

Questions about 6303-2Z

What are the dimensions of bearing 6303-2Z?

Bore 17 mm, outside diameter 47 mm, width 14 mm. Standardised dimensions – the same for every manufacturer.

Are 6303-2Z bearings from different brands interchangeable?

Yes. 6303-ZZ SKF, 6303-ZZ NSK, 6303-2Z ZEN, 6303-2ZC3 NKE, 6303-ZZECM INNE are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.

How much does bearing 6303-2Z cost?

At Castomer from PLN 6.53 to PLN 242.63 net per piece depending on the manufacturer (SKF, NSK, ZEN, NKE, INNE, FAG). Prices are updated from supplier warehouses; larger quantities get an individual offer.

What is the delivery time for 6303-2Z?

Dispatch in 2 working days from supplier warehouses in the EU. Availability is confirmed in the reply to your enquiry.