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NJ 208 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with NJ 208. 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

NJ 208 dimensions and recorded technical data

The recorded NJ 208 base designation measures 40×80×18 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 NJ 208

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 NJ208

NTN NJ208 — 24 recorded parameters

Single row cylindrical roller bearings

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

For this exact NTN NJ208 record, the nominal envelope is 40×80×18 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: 1.574803×3.149606×0.708661 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	40 mm
External diameter	D	80 mm
Bearing/Inner ring width	B	18 mm
Upper roller diameter	E	70 mm
Under roller diameter	F	50 mm
IR flange outer diameter	d1	54.2 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	0.41 kg

Performance

Parameter	Source symbol	Recorded value
Dynamic load	C	48.5 kN
Static load	C0	43 kN
Fatigue limit load	Cu	5.25 kN
Oil lubrication limit speed	N lim	11000 r/min
Grease lubrication limit speed	N lim	9400 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	46.5 mm
Small face shoulder max diameter	da max	49 mm
Min inner ring GO diameter	dc min	56 mm
Max shoulder diameter OR	Da max	73.5 mm
Max fillet radius	ra max	1 mm

Product characteristics

Parameter	Source symbol	Recorded value
Catalogue construction	Not separately recorded	Single row cylindrical roller bearing, single direction for axial loads, separable, pressed steel cage.
Cage construction	Not separately recorded	pressed steel cage.

Open NTN NJ208 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)
NTNNJ208Cylindrical roller bearing	Internal diameter (d) 40 mm 1.574803 in External diameter (D) 80 mm 3.149606 in Bearing/Inner ring width (B) 18 mm 0.708661 in	48.5 kN	43 kN	—	—	0.41 kg410 g
SKFNJ 208 ECJSingle row cylindrical roller bearing, NJ design	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	62 kN	53 kN	9500 rpm	11000 rpm	0.389 kg389 g
SKFNJ 208 ECJ/C3Single row cylindrical roller bearing, NJ design	Recorded bore (d) 40 mm 1.574803 in Recorded outside dimension (D) 80 mm 3.149606 in Catalogue width (symbol unverified) 18 mm 0.708661 in	62 kN	53 kN	9500 rpm	11000 rpm	0.391 kg391 g
SKFNJ 208 ECMSingle row cylindrical roller bearing, NJ design	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	62 kN	53 kN	9500 rpm	11000 rpm	0.433 kg433 g
SKFNJ 208 ECM/C3Single row cylindrical roller bearing, NJ design	Recorded bore (d) 40 mm 1.574803 in Recorded outside dimension (D) 80 mm 3.149606 in Catalogue width (symbol unverified) 18 mm 0.708661 in	62 kN	53 kN	9500 rpm	11000 rpm	0.433 kg433 g
SKFNJ 208 ECMLSingle row cylindrical roller bearing, NJ design	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	62 kN	53 kN	9500 rpm	16000 rpm	0.432 kg432 g
SKFNJ 208 ECPSingle row cylindrical roller bearing, NJ design	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	62 kN	53 kN	9500 rpm	11000 rpm	0.379 kg379 g
SKFNJ 208 ECP/C3Single row cylindrical roller bearing, NJ design	Recorded bore (d) 40 mm 1.574803 in Recorded outside dimension (D) 80 mm 3.149606 in Catalogue width (symbol unverified) 18 mm 0.708661 in	62 kN	53 kN	9500 rpm	11000 rpm	0.384 kg384 g
SKFNJ 208 ECPHSingle row cylindrical roller bearing, NJ design	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	62 kN	53 kN	9500 rpm	11000 rpm	0.384 kg384 g
FAGNJ208-E-XL-TVP2Cylindrical roller bearing	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	63 kN	53 kN	7500 rpm	12500 rpm	0.378 kg378 g
FAGNJ208-E-XL-TVP2>ACylindrical roller bearing	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	63 kN	53 kN	7500 rpm	12500 rpm	0.37847 kg378.47 g
FAGNJ208-E-XL-TVP2-C3Cylindrical roller bearing	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	63 kN	53 kN	7500 rpm	12500 rpm	0.378 kg378 g
FAGNJ208-E-XL-TVP2-C4Cylindrical roller bearing	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	63 kN	53 kN	7500 rpm	12500 rpm	0.378 kg378 g
FAGNJ208-E-XL-TVP2-C5Cylindrical roller bearing	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	63 kN	53 kN	7500 rpm	12500 rpm	0.378 kg378 g
NSKNJ208EWCylindrical roller bearing	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Bearing width (B) 18 mm 0.708661 in	68.5 kN	55.5 kN	—	—	—
KOYONJ208RCylindrical roller bearing	Bore diameter (d) 40 mm 1.574803 in Outside diameter (D) 80 mm 3.149606 in Width (B) 18 mm 0.708661 in	69.6 kN	55.4 kN	—	8300 rpmLimiting Speeds(Grease Lub.): 8300 min-1Limiting Speeds(Oil Lub.): 9900 min-1	0.397 kg397 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 NJ208	Not recorded	Not recorded	CN	pressed steel cage.	Not recorded	Not recorded
SKF NJ 208 ECJ	Without	Not recorded	CN	Sheet metal	Not recorded	None
SKF NJ 208 ECJ/C3	Without	Not recorded	C3	Sheet metal	Not recorded	None
SKF NJ 208 ECM	Without	Not recorded	CN	Machined brass	Not recorded	None
SKF NJ 208 ECM/C3	Without	Not recorded	C3	Machined brass	Not recorded	None
SKF NJ 208 ECML	Without	Not recorded	CN	Machined brass	Not recorded	None
SKF NJ 208 ECP	Without	Not recorded	CN	Non-metallic	Not recorded	None
SKF NJ 208 ECP/C3	Without	Not recorded	C3	Non-metallic	Not recorded	None
SKF NJ 208 ECPH	Without	Not recorded	CN	Non-metallic	Not recorded	None
FAG NJ208-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
FAG NJ208-E-XL-TVP2>A	Not recorded	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	TVP2 — Solid Window Cage made from PA66	Not recorded	Not recorded
FAG NJ208-E-XL-TVP2-C3	Not recorded	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	TVP2 — Solid Window Cage made from PA66	Not recorded	Not recorded
FAG NJ208-E-XL-TVP2-C4	Not recorded	PN — Normal (ISO 492:2023)	C4 (Group 4) — Internal clearance larger than C3	TVP2 — Solid Window Cage made from PA66	Not recorded	Not recorded
FAG NJ208-E-XL-TVP2-C5	Not recorded	PN — Normal (ISO 492:2023)	C5 (Group 5) — Internal clearance larger than C4	TVP2 — Solid Window Cage made from PA66	Not recorded	Not recorded
NSK NJ208EW	Not recorded	Not recorded	Not recorded	Pressed steel	Not recorded	Not recorded
KOYO NJ208R	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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