NN3020K bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with NN3020K. 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.
NN3020K dimensions and recorded technical data
The recorded NN3020K base designation measures 100×150×37 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from KOYO. 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. 9 recorded variants are listed. A dash means the value is missing, not zero.
Catalogue parameters for NN3020K
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.
KOYO NN3020K — 17 recorded parameters
Cylindrical roller bearing
Reference: JTEKT / Koyo catalogue; source snapshot 2026-09-02.
Read the complete suffix and recorded construction. Similar dimensions do not prove identical seals, clearance, precision or material.
Values shown are retained from the recorded source. Zero boundary dimensions and zero load ratings from incomplete legacy feeds are withheld rather than presented as usable specifications.
Technical Data
| Parameter | Source symbol | Recorded value |
|---|---|---|
| d | Not separately recorded | 100 mm |
| D | Not separately recorded | 150 mm |
| B | Not separately recorded | 37 mm |
| R(Min.) | Not separately recorded | 1.5 mm |
| Fw | Not separately recorded | - mm |
| Ew | Not separately recorded | 137 mm |
| Basic Load Ratings : Cr | Not separately recorded | 196 kN |
| Basic Load Ratings : C0R | Not separately recorded | 265 kN |
| Fatigue Load Limit : Cu | Not separately recorded | 33.3 kN |
| Limiting Speeds(Grease Lub.) | Not separately recorded | 3900 min-1 |
| Limiting Speeds(Oil Lub.) | Not separately recorded | 4700 min-1 |
| Da(Min.) | Not separately recorded | 139 mm |
| Da(Max.) | Not separately recorded | - mm |
| Db(Min.) | Not separately recorded | - mm |
| Da(Max.) | Not separately recorded | 142 mm |
| Ra(Max.) | Not separately recorded | 1.5 mm |
| Mass(Refer.) | Not separately recorded | 2.21 kg |
No recorded variant matches these filters. Clear a filter to see other records; no substitute has been inferred.
| Brand / full designation | Named dimensions (mm / in) | Dynamic C (kN) | Static C0 (kN) | Reference speed (rpm) | Limiting speed (rpm) | Mass (kg / g) |
|---|---|---|---|---|---|---|
| KOYONN3020KCylindrical roller bearing |
| 196 kN | 265 kN | — | 3900 rpmLimiting Speeds(Grease Lub.): 3900 min-1Limiting Speeds(Oil Lub.): 4700 min-1 | 2.21 kg2210 g |
| SKFNN 3020 KTN3/SPSuper-precision double row cylindrical roller bearing with tapered bore |
| 151 kN | 250 kN | — | — | 2.13 kg2130 g |
| SKFNN 3020 KTN3/SPW33Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature |
| 151 kN | 250 kN | — | — | 2.13 kg2130 g |
| SKFNN 3020 KTN9/SPSuper-precision double row cylindrical roller bearing with tapered bore |
| 151 kN | 250 kN | — | — | 2.1 kg2100 g |
| SKFNN 3020 KTN9/SPW33Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature |
| 151 kN | 250 kN | — | — | 2.08 kg2080 g |
| SKFNN 3020 KTN9/UPW33Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature |
| 151 kN | 250 kN | — | — | 2.2 kg2200 g |
| SKFNN 3020 KTN9/VM1271Super-precision double row cylindrical roller bearing with tapered bore |
| 151 kN | 250 kN | — | — | 2.1 kg2100 g |
| SKFNN 3020 KTN9/VQ585Super-precision double row cylindrical roller bearing with tapered bore |
| 151 kN | 250 kN | — | — | 2.1 kg2100 g |
| SKFNN 3020 KTN9/W33VQ497Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature |
| 151 kN | 250 kN | — | — | 2.08 kg2080 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 |
|---|---|---|---|---|---|---|
| KOYO NN3020K | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| SKF NN 3020 KTN3/SP | Without | Not recorded | C1 | Non-metallic | Bearing steel | None |
| SKF NN 3020 KTN3/SPW33 | Without | Not recorded | C1 | Non-metallic | Bearing steel | None |
| SKF NN 3020 KTN9/SP | Without | Not recorded | C1 | Non-metallic | Bearing steel | None |
| SKF NN 3020 KTN9/SPW33 | Without | Not recorded | C1 | Non-metallic | Bearing steel | None |
| SKF NN 3020 KTN9/UPW33 | Without | Not recorded | C1 | Non-metallic | Bearing steel | None |
| SKF NN 3020 KTN9/VM1271 | Without | Not recorded | NSTD | Non-metallic | Bearing steel | None |
| SKF NN 3020 KTN9/VQ585 | Without | Not recorded | NSTD | Non-metallic | Bearing steel | None |
| SKF NN 3020 KTN9/W33VQ497 | Without | Not recorded | NSTD | Non-metallic | Bearing steel | None |
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.
NN3020K
Cylindrical roller bearing
View full technical record →SKFNN 3020 KTN3/SP
Super-precision double row cylindrical roller bearing with tapered bore
View full technical record →SKFNN 3020 KTN3/SPW33
Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature
View full technical record →SKFNN 3020 KTN9/SP
Super-precision double row cylindrical roller bearing with tapered bore
View full technical record →SKFNN 3020 KTN9/SPW33
Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature
View full technical record →SKFNN 3020 KTN9/UPW33
Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature
View full technical record →SKFNN 3020 KTN9/VM1271
Super-precision double row cylindrical roller bearing with tapered bore
View full technical record →SKFNN 3020 KTN9/VQ585
Super-precision double row cylindrical roller bearing with tapered bore
View full technical record →SKFNN 3020 KTN9/W33VQ497
Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature
View full technical record →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.