Deep groove ball bearing 6311 – 55×120×29 mm

42 offers · 10 manufacturers · net prices from PLN 52.22 · dispatch in 2 working days

6311 is a deep groove ball bearing with a 55 mm bore, 120 mm outside diameter and 29 mm width, open design (no seals) – for externally lubricated arrangements. 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: 55 mm
outside D: 120 mm
width B: 29 mm
sealing: open
mass: 1.37 kg
net price from: PLN 52.22

Dimension drawing 6311 – one for all brands (ISO dimensions)

Main dimensions
d – bore diameter	55 mm
D – outside diameter	120 mm
B – width	29 mm
dynamic load rating C	74.1 kN (per SKF catalogue)
static load rating C₀	45 kN (per SKF catalogue)
mass	1.37 kg

Pictured: NKE 6311 C3. Every brand has its own product page with photo and full description.

Brands and prices 6311

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
NKE	6311 C3	C3	PLN 52.22PLN 64.23 gross	supplier stockdispatch in 2 working days
NKE	6311	CN	PLN 52.22PLN 64.23 gross	supplier stockdispatch in 2 working days
NTN	6311 C3	C3	PLN 63.34PLN 77.91 gross	supplier stockdispatch in 2 working days
FAG	6311-C	CN	PLN 67.45PLN 82.96 gross	supplier stockdispatch in 2 working days
FAG	6311-CC3	C3	PLN 67.45PLN 82.96 gross	supplier stockdispatch in 2 working days
NACHI	6311 C4	C4	PLN 68.26PLN 83.96 gross	supplier stockdispatch in 2 working days
NACHI	6311 C3	C3	PLN 68.26PLN 83.96 gross	supplier stockdispatch in 2 working days
NACHI	6311	CN	PLN 68.26PLN 83.96 gross	supplier stockdispatch in 2 working days
NSK	6311	CN	PLN 70.20PLN 86.35 gross	supplier stockdispatch in 2 working days
NSK	6311 C3	C3	PLN 70.20PLN 86.35 gross	supplier stockdispatch in 2 working days
NTN	6311 CMclearance for electric motors (quiet running)	CN	PLN 76.02PLN 93.50 gross	supplier stockdispatch in 2 working days
KOYO	6311 C3	C3	PLN 81.37PLN 100.09 gross	supplier stockdispatch in 2 working days
KOYO	6311 CMclearance for electric motors (quiet running)	CN	PLN 81.37PLN 100.09 gross	supplier stockdispatch in 2 working days
SKF	6311	CN	PLN 81.59PLN 100.36 gross	supplier stockdispatch in 2 working days
INNE	6311-2NSEreinforced design, higher load rating	CN	PLN 83.98PLN 103.30 gross	supplier stockdispatch in 2 working days
NACHI	6311-2NSEC3reinforced design, higher load rating	C3	PLN 83.98PLN 103.30 gross	supplier stockdispatch in 2 working days
KOYO	6311 C4	C4	PLN 85.48PLN 105.14 gross	supplier stockdispatch in 2 working days
SKF	6311 C3	C3	PLN 103.84PLN 127.72 gross	supplier stockdispatch in 2 working days
TIMKEN	6311	CN	PLN 109.94PLN 135.23 gross	supplier stockdispatch in 2 working days
TIMKEN	6311-C3	C3	PLN 109.94PLN 135.23 gross	supplier stockdispatch in 2 working days
NSK	6311 Mmachined brass cage	CN	PLN 190.51PLN 234.33 gross	supplier stockdispatch in 2 working days
NKE	6311 MC4machined brass cage	C4	PLN 207.57PLN 255.31 gross	supplier stockdispatch in 2 working days
SNR	6311 F600	CN	PLN 241.11PLN 296.57 gross	supplier stockdispatch in 2 working days
SNR	6311 F605	CN	PLN 251.05PLN 308.79 gross	supplier stockdispatch in 2 working days
FAG	6311 TBC340° contact angle	C3	PLN 306.02PLN 376.40 gross	supplier stockdispatch in 2 working days
FAG	6311 TB40° contact angle	CN	PLN 306.02PLN 376.40 gross	supplier stockdispatch in 2 working days
SNR	6311 F604	CN	PLN 338.26PLN 416.06 gross	supplier stockdispatch in 2 working days
FAG	6311-CMC3clearance for electric motors (quiet running)	C3	PLN 430.71PLN 529.77 gross	supplier stockdispatch in 2 working days
FAG	6311-CMclearance for electric motors (quiet running)	CN	PLN 430.71PLN 529.77 gross	supplier stockdispatch in 2 working days
TIMKEN	6311-M-C3machined brass cage	C3	PLN 485.89PLN 597.64 gross	supplier stockdispatch in 2 working days
FAG	6311-J20AA-C3two-piece pressed steel cage	C3	PLN 3,335.25PLN 4,102.36 gross	supplier stockdispatch in 2 working days

▸Special designs 6311 (11) – stainless steel, snap ring, manufacturer specials

NACHI	6311 NSEsnap ring groove, reinforced design, higher load rating	CN	PLN 82.41PLN 101.36 gross	supplier stockdispatch in 2 working days
INNE	6311 NRsnap ring groove with snap ring	CN	PLN 89.69PLN 110.32 gross	supplier stockdispatch in 2 working days
NKE	6311-NRsnap ring groove with snap ring	CN	PLN 92.17PLN 113.37 gross	supplier stockdispatch in 2 working days
NKE	6311-NR-C3snap ring groove with snap ring	C3	PLN 92.17PLN 113.37 gross	supplier stockdispatch in 2 working days
NACHI	6311 NRC3snap ring groove with snap ring	C3	PLN 94.67PLN 116.44 gross	supplier stockdispatch in 2 working days
NSK	6311 NRsnap ring groove with snap ring	CN	PLN 97.20PLN 119.56 gross	supplier stockdispatch in 2 working days
NSK	6311 NRC3snap ring groove with snap ring	C3	PLN 97.20PLN 119.56 gross	supplier stockdispatch in 2 working days
NTN	6311 NRsnap ring groove with snap ring	CN	PLN 125.22PLN 154.02 gross	supplier stockdispatch in 2 working days
SKF	6311 Nsnap ring groove	CN	PLN 169.93PLN 209.01 gross	supplier stockdispatch in 2 working days
SKF	6311 NRsnap ring groove with snap ring	CN	PLN 181.98PLN 223.84 gross	supplier stockdispatch in 2 working days
SKF	6311 NRC3snap ring groove with snap ring	C3	PLN 226.97PLN 279.17 gross	supplier stockdispatch in 2 working days

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

Other versions of 6311

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

How manufacturers designate 6311

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

Manufacturer	Designation	Sealing / design
FAG	6311-C	Open
NACHI	6311 C4	Open
NKE	6311 C3	Open
NSK	6311	Open
SKF	6311	Open
NTN	6311 C3	Open
KOYO	6311 C3	Open
TIMKEN	6311	Open
SNR	6311 F600	Open
INNE	6311-2NSE	Open

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 6311 are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.

Questions about 6311

What are the dimensions of bearing 6311?

Bore 55 mm, outside diameter 120 mm, width 29 mm. Standardised dimensions – the same for every manufacturer.

Are 6311 bearings from different brands interchangeable?

Yes. 6311-C FAG, 6311 C4 NACHI, 6311 C3 NKE, 6311 NSK, 6311 SKF are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.

How much does bearing 6311 cost?

At Castomer from PLN 52.22 to PLN 3,335.25 net per piece depending on the manufacturer (FAG, NACHI, NKE, NSK, SKF, NTN). Prices are updated from supplier warehouses; larger quantities get an individual offer.

What is the delivery time for 6311?

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