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NU 209 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with NU 209. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.

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Find by measured dimensions

Enter bore d, outside diameter D and width B. Use decimals or inch fractions such as 1/2 or 1 1/4.

Exact model evidence

NU 209 dimensions and recorded technical data

The recorded NU 209 base designation measures 45×85×19 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from NTN. It does not assign the same dimensions or operating ratings to every suffix.

The numeric series boundary is preserved: a longer number is not included merely because its first digits match. 14 recorded variants are listed. A dash means the value is missing, not zero.

Exact designation reference

Catalogue parameters for NU 209

Choose the complete brand and marking before reading a value. These source-labelled records add dimensions, construction and engineering properties where they were recorded; a shared model number does not establish interchangeability.

Units, ranges and minimum/maximum qualifiers are retained. The data is a dated catalogue reference, not a certified drawing, a complete current specification or an operating approval.

NTN NU209

NTN NU209 — 24 recorded parameters

Single row cylindrical roller bearings

Reference: NTN Europe public product catalogue; source snapshot 2026-10-02.

For this exact NTN NU209 record, the nominal envelope is 45×85×19 mm (d = internal diameter; D = external diameter; B = bearing/inner ring width). These are bearing or washer dimensions, not shaft/housing fit limits.

Calculated inch equivalent: 1.771654×3.346457×0.748031 in, in the same axis order. The conversion uses exactly 25.4 mm per inch and rounds to six decimals; it is not an inch-series designation or a machining tolerance.

Keep the prefix when matching this cylindrical roller bearing. The source construction below, including any axial-load direction statement, belongs only to the complete recorded designation; a similar NU, NJ or NUP number is not an approved substitute.

Use grease- and oil-qualified speed entries only for the named lubrication condition. Dynamic C and static C0 are catalogue ratings, not a universal safe load or installation approval; shoulder and fillet limits are separate from boundary size.

Dimensions and properties

Parameter	Source symbol	Recorded value
Internal diameter	d	45 mm
External diameter	D	85 mm
Bearing/Inner ring width	B	19 mm
Upper roller diameter	E	75 mm
Under roller diameter	F	55 mm
Min fillet radius	rs	1.1 mm
Min fillet radius	r1s	1.1 mm
Radial clearance class	Not separately recorded	CN
Mass	Not separately recorded	0.432 kg

Performance

Parameter	Source symbol	Recorded value
Dynamic load	C	51 kN
Static load	C0	47 kN
Fatigue limit load	Cu	5.7 kN
Oil lubrication limit speed	N lim	9900 r/min
Grease lubrication limit speed	N lim	8400 r/min
Min operating temperature	Tmin	-40 °C
Max operating temperature	Tmax	120 °C

Mounting dimensions

Parameter	Source symbol	Recorded value
Min shoulder diameter IR	da min	51.5 mm
Small face shoulder max diameter	da max	54 mm
Min inner ring GO diameter	db min	57 mm
Max shoulder diameter OR	Da max	78.5 mm
Max fillet radius	ra max	1 mm
Max fillet radius	r1a	1 mm

Product characteristics

Parameter	Source symbol	Recorded value
Catalogue construction	Not separately recorded	Single row cylindrical roller bearing, floating, separable, pressed steel cage
Cage construction	Not separately recorded	pressed steel cage

Open NTN NU209 product record →

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Brand / full designation	Named dimensions (mm / in)	Dynamic C (kN)	Static C0 (kN)	Reference speed (rpm)	Limiting speed (rpm)	Mass (kg / g)
NTNNU209Cylindrical roller bearing	Internal diameter (d) 45 mm 1.771654 in External diameter (D) 85 mm 3.346457 in Bearing/Inner ring width (B) 19 mm 0.748031 in	51 kN	47 kN	—	—	0.432 kg432 g
SKFNU 209 ECJSingle row cylindrical roller bearing, NU design	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Width (B) 19 mm 0.748031 in	69.5 kN	64 kN	9000 rpm	9500 rpm	0.433 kg433 g
SKFNU 209 ECJ/C3Single row cylindrical roller bearing, NU design	Recorded bore (d) 45 mm 1.771654 in Recorded outside dimension (D) 85 mm 3.346457 in Catalogue width (symbol unverified) 19 mm 0.748031 in	69.5 kN	64 kN	9000 rpm	9500 rpm	0.433 kg433 g
SKFNU 209 ECMSingle row cylindrical roller bearing, NU design	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Width (B) 19 mm 0.748031 in	69.5 kN	64 kN	9000 rpm	9500 rpm	0.503 kg503 g
SKFNU 209 ECM/HC5C3Hybrid ceramic single row cylindrical roller bearing, NU design	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Width (B) 19 mm 0.748031 in	60.5 kN	64 kN	9500 rpm	12000 rpm	0.426 kg426 g
SKFNU 209 ECMLSingle row cylindrical roller bearing, NU design	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Width (B) 19 mm 0.748031 in	69.5 kN	64 kN	9000 rpm	15000 rpm	0.496 kg496 g
SKFNU 209 ECPSingle row cylindrical roller bearing, NU design	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Width (B) 19 mm 0.748031 in	69.5 kN	64 kN	9000 rpm	9500 rpm	0.422 kg422 g
SKFNU 209 ECP/C3Single row cylindrical roller bearing, NU design	Recorded bore (d) 45 mm 1.771654 in Recorded outside dimension (D) 85 mm 3.346457 in Catalogue width (symbol unverified) 19 mm 0.748031 in	69.5 kN	64 kN	9000 rpm	9500 rpm	0.434 kg434 g
FAGNU209-E-XL-M1Cylindrical roller bearing	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Width (B) 19 mm 0.748031 in	76 kN	68 kN	6900 rpm	15300 rpm	0.497 kg497 g
FAGNU209-E-XL-M1-C3Cylindrical roller bearing	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Width (B) 19 mm 0.748031 in	76 kN	68 kN	6900 rpm	15300 rpm	0.478 kg478 g
FAGNU209-E-XL-M1-J20GA-H257A-C4Cylindrical roller bearing	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Width (B) 19 mm 0.748031 in	76 kN	68 kN	6900 rpm	15300 rpm	0.48515 kg485.15 g
FAGNU209-E-XL-TVP2Cylindrical roller bearing	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Width (B) 19 mm 0.748031 in	72 kN	63 kN	7000 rpm	10200 rpm	0.429 kg429 g
NSKNU209EWCylindrical roller bearing	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Bearing width (B) 19 mm 0.748031 in	77.5 kN	66.5 kN	—	—	—
KOYONU209RCylindrical roller bearing	Bore diameter (d) 45 mm 1.771654 in Outside diameter (D) 85 mm 3.346457 in Width (B) 19 mm 0.748031 in	78.9 kN	66.4 kN	—	7600 rpmLimiting Speeds(Grease Lub.): 7600 min-1Limiting Speeds(Oil Lub.): 9200 min-1	0.439 kg439 g

Compare recorded seals, clearance, precision and materials

Manufacturer wording is retained. A missing property is not inferred from another brand or a similar suffix.

Brand / designation	Closure	Original precision	Clearance	Cage	Material	Lubricant
NTN NU209	Not recorded	Not recorded	CN	pressed steel cage	Not recorded	Not recorded
SKF NU 209 ECJ	Without	Not recorded	CN	Sheet metal	Not recorded	None
SKF NU 209 ECJ/C3	Without	Not recorded	C3	Sheet metal	Not recorded	None
SKF NU 209 ECM	Without	Not recorded	CN	Machined brass	Not recorded	None
SKF NU 209 ECM/HC5C3	Without	Not recorded	C3	Machined brass	Hybrid (ceramic rollers)	None
SKF NU 209 ECML	Without	Not recorded	CN	Machined brass	Not recorded	None
SKF NU 209 ECP	Without	Not recorded	CN	Non-metallic	Not recorded	None
SKF NU 209 ECP/C3	Without	Not recorded	C3	Non-metallic	Not recorded	None
FAG NU209-E-XL-M1	Not recorded	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	M1 — Two Piece Brass Cage Roller Guided	Not recorded	Not recorded
FAG NU209-E-XL-M1-C3	Not recorded	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	M1 — Two Piece Brass Cage Roller Guided	Not recorded	Not recorded
FAG NU209-E-XL-M1-J20GA-H257A-C4	Not recorded	PN — Normal (ISO 492:2023)	C4 (Group 4) — Internal clearance larger than C3	M1 — Two Piece Brass Cage Roller Guided	Not recorded	Not recorded
FAG NU209-E-XL-TVP2	Not recorded	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	TVP2 — Solid Window Cage made from PA66	Not recorded	Not recorded
NSK NU209EW	Not recorded	Not recorded	Not recorded	Pressed steel	Not recorded	Not recorded
KOYO NU209R	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded

How to compare these values

Use the displayed dimension names and original symbols. Housing length L, height H2 and flange width are not bearing outside diameter D. A catalogue width with an unverified symbol must not be assumed to be inner-ring width B or assembly width T. Open the product record for mounting dimensions and geometry.
Inch values are calculated from the recorded millimetres using 25.4 mm per inch, rounded to six decimal places. They do not change a metric bearing into an inch-series bearing. Gram values are converted from the recorded mass in kilograms.
C and C0 describe different rating conditions. They are not a single safe working-load limit and cannot replace an application load calculation.
Reference and limiting speeds are separate catalogue values. The source grease/oil context is shown where recorded. Lubricant, seals, loads, fit, clearance and cooling affect the usable operating speed.
A common base number does not prove equivalent seals, clearance, precision, material or interchangeability. Open the full designation for these fields.

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Related prefix matches — other model numbers may appear

These discovery results can contain a longer number or a different component. They are not specifications for the requested exact model. Open the complete product to inspect its original geometry.

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