Find · understand · compare

NU314 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with NU314. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.

On this page5 sections

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

NU314 dimensions and recorded technical data

The recorded NU314 base designation measures 70×150×35 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. 16 recorded variants are listed. A dash means the value is missing, not zero.

Exact designation reference

Catalogue parameters for NU314

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 NU314

NTN NU314 — 24 recorded parameters

Single row cylindrical roller bearings

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

For this exact NTN NU314 record, the nominal envelope is 70×150×35 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: 2.755906×5.905512×1.377953 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	70 mm
External diameter	D	150 mm
Bearing/Inner ring width	B	35 mm
Upper roller diameter	E	130 mm
Under roller diameter	F	90 mm
Min fillet radius	rs	2.1 mm
Min fillet radius	r1s	2.1 mm
Radial clearance class	Not separately recorded	CN
Mass	Not separately recorded	2.71 kg

Performance

Parameter	Source symbol	Recorded value
Dynamic load	C	175 kN
Static load	C0	168 kN
Fatigue limit load	Cu	20 kN
Oil lubrication limit speed	N lim	5500 r/min
Grease lubrication limit speed	N lim	4700 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	81 mm
Small face shoulder max diameter	da max	87 mm
Min inner ring GO diameter	db min	92 mm
Max shoulder diameter OR	Da max	139 mm
Max fillet radius	ra max	2 mm
Max fillet radius	r1a	2 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 NU314 product record →

Clearance tables →Precision classes →Load calculations →Interchange checks →

Brand / full designation	Named dimensions (mm / in)	Dynamic C (kN)	Static C0 (kN)	Reference speed (rpm)	Limiting speed (rpm)	Mass (kg / g)
NTNNU314Cylindrical roller bearing	Internal diameter (d) 70 mm 2.755906 in External diameter (D) 150 mm 5.905512 in Bearing/Inner ring width (B) 35 mm 1.377953 in	175 kN	168 kN	—	—	2.71 kg2710 g
SKFNU 314 ECJSingle row cylindrical roller bearing, NU design	Bore diameter (d) 70 mm 2.755906 in Outside diameter (D) 150 mm 5.905512 in Width (B) 35 mm 1.377953 in	236 kN	228 kN	4800 rpm	5600 rpm	2.72 kg2720 g
SKFNU 314 ECJ/C3Single row cylindrical roller bearing, NU design	Recorded bore (d) 70 mm 2.755906 in Recorded outside dimension (D) 150 mm 5.905512 in Catalogue width (symbol unverified) 35 mm 1.377953 in	236 kN	228 kN	4800 rpm	5600 rpm	2.72 kg2720 g
SKFNU 314 ECMSingle row cylindrical roller bearing, NU design	Bore diameter (d) 70 mm 2.755906 in Outside diameter (D) 150 mm 5.905512 in Width (B) 35 mm 1.377953 in	236 kN	228 kN	4800 rpm	5600 rpm	3.17 kg3170 g
SKFNU 314 ECM/C3Single row cylindrical roller bearing, NU design	Recorded bore (d) 70 mm 2.755906 in Recorded outside dimension (D) 150 mm 5.905512 in Catalogue width (symbol unverified) 35 mm 1.377953 in	236 kN	228 kN	4800 rpm	5600 rpm	3.17 kg3170 g
SKFNU 314 ECM/C3VL0241INSOCOAT single row cylindrical roller bearing, NU design	Bore diameter (d) 70 mm 2.755906 in Outside diameter (D) 150 mm 5.905512 in Width (B) 35 mm 1.377953 in	236 kN	228 kN	4800 rpm	5600 rpm	3.17 kg3170 g
SKFNU 314 ECM/C4VA301Single row cylindrical roller bearing, NU design	Recorded bore (d) 70 mm 2.755906 in Recorded outside dimension (D) 150 mm 5.905512 in Catalogue width (symbol unverified) 35 mm 1.377953 in	236 kN	228 kN	4800 rpm	5600 rpm	3.17 kg3170 g
SKFNU 314 ECM/C5Single row cylindrical roller bearing, NU design	Recorded bore (d) 70 mm 2.755906 in Recorded outside dimension (D) 150 mm 5.905512 in Catalogue width (symbol unverified) 35 mm 1.377953 in	236 kN	228 kN	4800 rpm	5600 rpm	3.17 kg3170 g
SKFNU 314 ECMLSingle row cylindrical roller bearing, NU design	Bore diameter (d) 70 mm 2.755906 in Outside diameter (D) 150 mm 5.905512 in Width (B) 35 mm 1.377953 in	236 kN	228 kN	4800 rpm	8500 rpm	3.02 kg3020 g
SKFNU 314 ECPSingle row cylindrical roller bearing, NU design	Bore diameter (d) 70 mm 2.755906 in Outside diameter (D) 150 mm 5.905512 in Width (B) 35 mm 1.377953 in	236 kN	228 kN	4800 rpm	5600 rpm	2.7 kg2700 g
SKFNU 314 ECP/C3Single row cylindrical roller bearing, NU design	Recorded bore (d) 70 mm 2.755906 in Recorded outside dimension (D) 150 mm 5.905512 in Catalogue width (symbol unverified) 35 mm 1.377953 in	236 kN	228 kN	4800 rpm	5600 rpm	2.7 kg2700 g
FAGNU314-E-XL-M1Cylindrical roller bearing	Bore diameter (d) 70 mm 2.755906 in Outside diameter (D) 150 mm 5.905512 in Width (B) 35 mm 1.377953 in	242 kN	222 kN	4500 rpm	8200 rpm	3.037 kg3037 g
FAGNU314-E-XL-TVP2Cylindrical roller bearing	Bore diameter (d) 70 mm 2.755906 in Outside diameter (D) 150 mm 5.905512 in Width (B) 35 mm 1.377953 in	242 kN	222 kN	4500 rpm	6300 rpm	2.686 kg2686 g
NSKNU314EMCylindrical roller bearing	Bore diameter (d) 70 mm 2.755906 in Outside diameter (D) 150 mm 5.905512 in Bearing width (B) 35 mm 1.377953 in	252 kN	222 kN	—	—	—
NSKNU314WCylindrical roller bearing	Bore diameter (d) 70 mm 2.755906 in Outside diameter (D) 150 mm 5.905512 in Bearing width (B) 35 mm 1.377953 in	195 kN	168 kN	—	—	—
KOYONU314RCylindrical roller bearing	Bore diameter (d) 70 mm 2.755906 in Outside diameter (D) 150 mm 5.905512 in Width (B) 35 mm 1.377953 in	256 kN	222 kN	—	4000 rpmLimiting Speeds(Grease Lub.): 4000 min-1Limiting Speeds(Oil Lub.): 5300 min-1	2.81 kg2810 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 NU314	Not recorded	Not recorded	CN	pressed steel cage	Not recorded	Not recorded
SKF NU 314 ECJ	Without	Not recorded	CN	Sheet metal	Not recorded	None
SKF NU 314 ECJ/C3	Without	Not recorded	C3	Sheet metal	Not recorded	None
SKF NU 314 ECM	Without	Not recorded	CN	Machined brass	Not recorded	None
SKF NU 314 ECM/C3	Without	Not recorded	C3	Machined brass	Not recorded	None
SKF NU 314 ECM/C3VL0241	Without	Not recorded	C3	Machined brass	Bearing steel	None
SKF NU 314 ECM/C4VA301	Without	Not recorded	C4	Machined brass	Not recorded	None
SKF NU 314 ECM/C5	Without	Not recorded	C5	Machined brass	Not recorded	None
SKF NU 314 ECML	Without	Not recorded	CN	Machined brass	Not recorded	None
SKF NU 314 ECP	Without	Not recorded	CN	Non-metallic	Not recorded	None
SKF NU 314 ECP/C3	Without	Not recorded	C3	Non-metallic	Not recorded	None
FAG NU314-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 NU314-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 NU314EM	Not recorded	Not recorded	Not recorded	Machined brass	Not recorded	Not recorded
NSK NU314W	Not recorded	Not recorded	Not recorded	Pressed steel	Not recorded	Not recorded
KOYO NU314R	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.

Check load calculations →Estimate rating life →Decode the complete marking →Check replacement evidence →

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.

NTN