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NU 316 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with NU 316. 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.

For tapered assemblies use total width T; for units or flanged bearings also check the mounting drawing.

Exact model evidence

NU 316 dimensions and recorded technical data

The recorded NU 316 base designation measures 80×170×39 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. 19 recorded variants are listed. A dash means the value is missing, not zero.

Exact designation reference

Catalogue parameters for NU 316

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 NU316 — 24 recorded parameters

Single row cylindrical roller bearings

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

For this exact NTN NU316 record, the nominal envelope is 80×170×39 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: 3.149606×6.692913×1.535433 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

ParameterSource symbolRecorded value
Internal diameterd80 mm
External diameterD170 mm
Bearing/Inner ring widthB39 mm
Upper roller diameterE147 mm
Under roller diameterF103 mm
Min fillet radiusrs2.1 mm
Min fillet radiusr1s2.1 mm
Radial clearance classNot separately recordedCN
MassNot separately recorded3.86 kg

Performance

ParameterSource symbolRecorded value
Dynamic loadC211 kN
Static loadC0207 kN
Fatigue limit loadCu23.7 kN
Oil lubrication limit speedN lim4800 r/min
Grease lubrication limit speedN lim4100 r/min
Min operating temperatureTmin-40 °C
Max operating temperatureTmax120 °C

Mounting dimensions

ParameterSource symbolRecorded value
Min shoulder diameter IRda min91 mm
Small face shoulder max diameterda max99 mm
Min inner ring GO diameterdb min105 mm
Max shoulder diameter ORDa max159 mm
Max fillet radiusra max2 mm
Max fillet radiusr1a2 mm

Product characteristics

ParameterSource symbolRecorded value
Catalogue constructionNot separately recordedSingle row cylindrical roller bearing, floating, separable, pressed steel cage
Cage constructionNot separately recordedpressed steel cage
Open NTN NU316 product record →
Brand / full designationNamed dimensions (mm / in)Dynamic C (kN)Static C0 (kN)Reference speed (rpm)Limiting speed (rpm)Mass (kg / g)
NTNNU316Cylindrical roller bearing
Internal diameter (d)
80 mm
3.149606 in
External diameter (D)
170 mm
6.692913 in
Bearing/Inner ring width (B)
39 mm
1.535433 in
211 kN207 kN——3.86 kg3860 g
SKFNU 316 ECJSingle row cylindrical roller bearing, NU design
Bore diameter (d)
80 mm
3.149606 in
Outside diameter (D)
170 mm
6.692913 in
Width (B)
39 mm
1.535433 in
300 kN290 kN4300 rpm5000 rpm3.89 kg3890 g
SKFNU 316 ECJ/C3Single row cylindrical roller bearing, NU design
Recorded bore (d)
80 mm
3.149606 in
Recorded outside dimension (D)
170 mm
6.692913 in
Catalogue width (symbol unverified)
39 mm
1.535433 in
300 kN290 kN4300 rpm5000 rpm3.89 kg3890 g
SKFNU 316 ECMSingle row cylindrical roller bearing, NU design
Bore diameter (d)
80 mm
3.149606 in
Outside diameter (D)
170 mm
6.692913 in
Width (B)
39 mm
1.535433 in
300 kN290 kN4300 rpm5000 rpm4.39 kg4390 g
SKFNU 316 ECM/C3Single row cylindrical roller bearing, NU design
Recorded bore (d)
80 mm
3.149606 in
Recorded outside dimension (D)
170 mm
6.692913 in
Catalogue width (symbol unverified)
39 mm
1.535433 in
300 kN290 kN4300 rpm5000 rpm4.39 kg4390 g
SKFNU 316 ECM/C3VL0241INSOCOAT single row cylindrical roller bearing, NU design
Bore diameter (d)
80 mm
3.149606 in
Outside diameter (D)
170 mm
6.692913 in
Width (B)
39 mm
1.535433 in
300 kN290 kN4300 rpm5000 rpm4.39 kg4390 g
SKFNU 316 ECMLSingle row cylindrical roller bearing, NU design
Bore diameter (d)
80 mm
3.149606 in
Outside diameter (D)
170 mm
6.692913 in
Width (B)
39 mm
1.535433 in
300 kN290 kN4300 rpm7500 rpm4.35 kg4350 g
SKFNU 316 ECML/C4Single row cylindrical roller bearing, NU design
Recorded bore (d)
80 mm
3.149606 in
Recorded outside dimension (D)
170 mm
6.692913 in
Catalogue width (symbol unverified)
39 mm
1.535433 in
300 kN290 kN4300 rpm7500 rpm4.35 kg4350 g
SKFNU 316 ECPSingle row cylindrical roller bearing, NU design
Bore diameter (d)
80 mm
3.149606 in
Outside diameter (D)
170 mm
6.692913 in
Width (B)
39 mm
1.535433 in
300 kN290 kN4300 rpm5000 rpm3.86 kg3860 g
SKFNU 316 ECP/C3Single row cylindrical roller bearing, NU design
Recorded bore (d)
80 mm
3.149606 in
Recorded outside dimension (D)
170 mm
6.692913 in
Catalogue width (symbol unverified)
39 mm
1.535433 in
300 kN290 kN4300 rpm5000 rpm3.94 kg3940 g
SKFNU 316 ECPHSingle row cylindrical roller bearing, NU design
Bore diameter (d)
80 mm
3.149606 in
Outside diameter (D)
170 mm
6.692913 in
Width (B)
39 mm
1.535433 in
300 kN290 kN4300 rpm5000 rpm3.86 kg3860 g
FAGNU316-E-XL-M1Cylindrical roller bearing
Bore diameter (d)
80 mm
3.149606 in
Outside diameter (D)
170 mm
6.692913 in
Width (B)
39 mm
1.535433 in
300 kN275 kN4100 rpm7200 rpm4.37 kg4370 g
FAGNU316-E-XL-TVP2Cylindrical roller bearing
Bore diameter (d)
80 mm
3.149606 in
Outside diameter (D)
170 mm
6.692913 in
Width (B)
39 mm
1.535433 in
300 kN275 kN4100 rpm5500 rpm3.812 kg3812 g
TIMKENNU316EJCylindrical roller bearing
Recorded bore (d)
80 mm
3.149606 in
Recorded outside dimension (D)
170 mm
6.692913 in
Catalogue width (symbol unverified)
39 mm
1.535433 in
290 kN289 kN——3.9 kg3900 g
TIMKENNU316EJC3Cylindrical roller bearing
Recorded bore (d)
80 mm
3.149606 in
Recorded outside dimension (D)
170 mm
6.692913 in
Catalogue width (symbol unverified)
39 mm
1.535433 in
290 kN289 kN——3.9 kg3900 g
TIMKENNU316EMACylindrical roller bearing
Recorded bore (d)
80 mm
3.149606 in
Recorded outside dimension (D)
170 mm
6.692913 in
Catalogue width (symbol unverified)
39 mm
1.535433 in
290 kN289 kN——4.3 kg4300 g
TIMKENNU316EMAC3Cylindrical roller bearing
Recorded bore (d)
80 mm
3.149606 in
Recorded outside dimension (D)
170 mm
6.692913 in
Catalogue width (symbol unverified)
39 mm
1.535433 in
290 kN289 kN——4.3 kg4300 g
NSKNU316EMCylindrical roller bearing
Bore diameter (d)
80 mm
3.149606 in
Outside diameter (D)
170 mm
6.692913 in
Bearing width (B)
39 mm
1.535433 in
315 kN282 kN———
KOYONU316RCylindrical roller bearing
Bore diameter (d)
80 mm
3.149606 in
Outside diameter (D)
170 mm
6.692913 in
Width (B)
39 mm
1.535433 in
320 kN282 kN—3500 rpmLimiting Speeds(Grease Lub.): 3500 min-1Limiting Speeds(Oil Lub.): 4700 min-14 kg4000 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 / designationClosureOriginal precisionClearanceCageMaterialLubricant
NTN NU316Not recordedNot recordedCNpressed steel cageNot recordedNot recorded
SKF NU 316 ECJWithoutNot recordedCNSheet metalNot recordedNone
SKF NU 316 ECJ/C3WithoutNot recordedC3Sheet metalNot recordedNone
SKF NU 316 ECMWithoutNot recordedCNMachined brassNot recordedNone
SKF NU 316 ECM/C3WithoutNot recordedC3Machined brassNot recordedNone
SKF NU 316 ECM/C3VL0241WithoutNot recordedC3Machined brassBearing steelNone
SKF NU 316 ECMLWithoutNot recordedCNMachined brassNot recordedNone
SKF NU 316 ECML/C4WithoutNot recordedC4Machined brassNot recordedNone
SKF NU 316 ECPWithoutNot recordedCNNon-metallicNot recordedNone
SKF NU 316 ECP/C3WithoutNot recordedC3Non-metallicNot recordedNone
SKF NU 316 ECPHWithoutNot recordedCNNon-metallicNot recordedNone
FAG NU316-E-XL-M1Not recordedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceM1 — Two Piece Brass Cage Roller GuidedNot recordedNot recorded
FAG NU316-E-XL-TVP2Not recordedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceTVP2 — Solid Window Cage made from PA66Not recordedNot recorded
TIMKEN NU316EJOpenNot recordedNot recordedWindow Steel cageNot recordedNot recorded
TIMKEN NU316EJC3OpenNot recordedNot recordedWindow Steel cageNot recordedNot recorded
TIMKEN NU316EMAOpenNot recordedNot recordedWindow Brass cageNot recordedNot recorded
TIMKEN NU316EMAC3OpenNot recordedNot recordedWindow Brass cageNot recordedNot recorded
NSK NU316EMNot recordedNot recordedNot recordedMachined brassNot recordedNot recorded
KOYO NU316RNot recordedNot recordedNot recordedNot recordedNot recordedNot 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.

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.

Check the drawing before substituting

Nominal dimensions are not shaft-fit tolerances. Different variants can add grooves, flanges, wider rings or assembly components. When the table has different dimensions, the complete designation—not the shared prefix—controls.

Reference basis & data limits

Manufacturer terminology is retained in the product records. Technical reference basis: JTEKT Basic Bearing Knowledge (boundary dimensions, tolerance classes and lubrication); NSK Bearing ABCs (lubrication, designations and clearance); NTN technical FAQs (closure codes and component interchange); SKF rolling-bearing selection and maintenance references.

Selection workflows and catalogue grouping are BearingScope editorial aids. Verify the current drawing and application requirements before using a candidate. Missing database information is not converted into an assumed match.

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