Deep groove ball bearing 6304-2RS – 20×52×15 mm

17 offers · 7 manufacturers · net prices from PLN 8.63 · dispatch in 2 working days

6304-2RS is a deep groove ball bearing with a 20 mm bore, 52 mm outside diameter and 15 mm width, with two rubber contact seals (2RS) – greased for life, maintenance-free. 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: 20 mm
outside D: 52 mm
width B: 15 mm
sealing: 2RS
mass: 0.15 kg
net price from: PLN 8.63

Dimension drawing 6304-2RS – one for all brands (ISO dimensions)

Main dimensions
d – bore diameter	20 mm
D – outside diameter	52 mm
B – width	15 mm
dynamic load rating C	15.9 kN (per SKF catalogue)
static load rating C₀	7.8 kN (per SKF catalogue)
mass	0.15 kg

Pictured: ZEN 6304-2RS. Every brand has its own product page with photo and full description.

Brands and prices 6304-2RS

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	6304-2RS	CN	PLN 8.63PLN 10.61 gross	supplier stockdispatch in 2 working days
ZEN	6304-2RS-C3	C3	PLN 8.63PLN 10.61 gross	supplier stockdispatch in 2 working days
NKE	6304-2RS2	CN	PLN 10.04PLN 12.35 gross	supplier stockdispatch in 2 working days
ZEN	6304-2RSNR	CN	PLN 10.10PLN 12.42 gross	supplier stockdispatch in 2 working days
NSK	6304-DDU	CN	PLN 12.91PLN 15.88 gross	supplier stockdispatch in 2 working days
NSK	6304 DDUC3	C3	PLN 12.91PLN 15.88 gross	supplier stockdispatch in 2 working days
SKF	6304-2RSH	CN	PLN 13.17PLN 16.20 gross	supplier stockdispatch in 2 working days
SKF	6304-2RSHC3	C3	PLN 13.17PLN 16.20 gross	supplier stockdispatch in 2 working days
TIMKEN	6304-2RS	CN	PLN 15.44PLN 18.99 gross	supplier stockdispatch in 2 working days
TIMKEN	6304-2RS-C3	C3	PLN 15.44PLN 18.99 gross	supplier stockdispatch in 2 working days
KOYO	6304-2RSC3	C3	PLN 15.72PLN 19.34 gross	supplier stockdispatch in 2 working days
FAG	6304-C-2HRS-C4 (-2RSR-C4)	C4	PLN 21.44PLN 26.37 gross	supplier stockdispatch in 2 working days
SKF	6304-2RSH/C4	C4	PLN 24.67PLN 30.34 gross	supplier stockdispatch in 2 working days
SKF	6304-2RSH/C3LHT23	C3	PLN 45.90PLN 56.46 gross	supplier stockdispatch in 2 working days
NKE	6304-2RS2-SS	CN	PLN 85.64PLN 105.34 gross	supplier stockdispatch in 2 working days

▸Special designs 6304-2RS (2) – stainless steel, snap ring, manufacturer specials

SKF	6304-2RSHNRsnap ring groove with snap ring	CN	PLN 85.64PLN 105.34 gross	supplier stockdispatch in 2 working days
SKF	W6304-2RS1	CN	PLN 184.46PLN 226.89 gross	supplier stockdispatch in 2 working days

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

Other versions of 6304

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

How manufacturers designate 6304-2RS

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

Manufacturer	Designation	Sealing / design
SKF	6304-2RSH	2RS – rubber contact seals, both sides
ZEN	6304-2RS	2RS – rubber contact seals, both sides
NKE	6304-2RS2	2RS – rubber contact seals, both sides
NSK	6304-DDU	2RS – rubber contact seals, both sides
TIMKEN	6304-2RS	2RS – rubber contact seals, both sides
KOYO	6304-2RSC3	2RS – rubber contact seals, both sides
FAG	6304-C-2HRS-C4 (-2RSR-C4)	2RS – rubber contact seals, 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 6304-2RS are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.

Questions about 6304-2RS

What are the dimensions of bearing 6304-2RS?

Bore 20 mm, outside diameter 52 mm, width 15 mm. Standardised dimensions – the same for every manufacturer.

Are 6304-2RS bearings from different brands interchangeable?

Yes. 6304-2RSH SKF, 6304-2RS ZEN, 6304-2RS2 NKE, 6304-DDU NSK, 6304-2RS TIMKEN are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.

How much does bearing 6304-2RS cost?

At Castomer from PLN 8.63 to PLN 85.64 net per piece depending on the manufacturer (SKF, ZEN, NKE, NSK, TIMKEN, KOYO). Prices are updated from supplier warehouses; larger quantities get an individual offer.

What is the delivery time for 6304-2RS?

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