NU23 Series Cylindrical Roller Bearings

NU23 series — 27 sizes, ISO 15 boundary dimensions with cross-brand equivalents.

Sizes in this series

Designation	Bore	Outer Ø	Width (B)	Cross-reference
NU2304	20 mm	52 mm	21 mm	equivalents →
NU2305	25 mm	62 mm	24 mm	equivalents →
NU2306	30 mm	72 mm	27 mm	equivalents →
NU2307	35 mm	80 mm	31 mm	equivalents →
NU2308	40 mm	90 mm	33 mm	equivalents →
NU2309	45 mm	100 mm	36 mm	equivalents →
NU2310	50 mm	110 mm	40 mm	equivalents →
NU2311	55 mm	120 mm	43 mm	equivalents →
NU2312	60 mm	130 mm	46 mm	equivalents →
NU2313	65 mm	140 mm	48 mm	equivalents →
NU2314	70 mm	150 mm	51 mm	equivalents →
NU2315	75 mm	160 mm	55 mm	equivalents →
NU2316	80 mm	170 mm	58 mm	equivalents →
NU2317	85 mm	180 mm	60 mm	equivalents →
NU2318	90 mm	190 mm	64 mm	equivalents →
NU2319	95 mm	200 mm	67 mm	equivalents →
NU2320	100 mm	215 mm	73 mm	equivalents →
NU2322	110 mm	240 mm	80 mm	equivalents →
NU2324	120 mm	260 mm	86 mm	equivalents →
NU2326	130 mm	280 mm	93 mm	equivalents →
NU2328	140 mm	300 mm	102 mm	equivalents →
NU2330	150 mm	320 mm	108 mm	equivalents →
NU2332	160 mm	340 mm	114 mm	equivalents →
NU2334	170 mm	360 mm	120 mm	equivalents →
NU2336	180 mm	380 mm	126 mm	equivalents →
NU2338	190 mm	400 mm	132 mm	equivalents →
NU2340	200 mm	420 mm	138 mm	equivalents →

Boundary-dimension reference only. Verify suffixes before substituting.