Cross-brand designation analysis
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Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
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One base designation across loaded brands
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Dimensions verified
“N221” across 4 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | SKFN 221 ECP105 × 190 × 36 mm | FAGN221-E-XL-M1105 × 190 × 36 mm | NSKN221W105 × 190 × 36 mm | KOYON221105 × 190 × 36 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | SKF | FAG | NSK | KOYO |
| Designation | N 221 ECP | N221-E-XL-M1 | N221W | N221 |
| Product family | Cylindrical roller bearings | — | Cylindrical roller bearing | Single-row / NU |
| Detailed type | Single row cylindrical roller bearing, n design | Cylindrical roller bearings | Cylindrical roller bearings | Cylindrical roller bearings |
| Series | — | N221 | — | — |
| Bore diameterd | 105 mm | 105 mm | 105 mm | 105 mm |
| Outside diameterD | 190 mm | 190 mm | 190 mm | 190 mm |
| WidthB | 36 mm | 36 mm | 36 mm | 36 mm |
| Basic dynamic load ratingC | 300 kN | 310 kN | 247 kN | 251 kN |
| Basic static load ratingC0 | 315 kN | 320 kN | 241 kN | 241 kN |
| Fatigue load limitPu | 36.5 kN | 54 kN | — | 34.1 kN |
| Reference speednref | 3800 r/min | — | — | — |
| Limiting speednG | 4300 r/min | — | — | 3300 r/min |
| Mass≈m | 3.88 kg | 4.52 kg | — | — |
| Precision class | — | PN — Normal (ISO 492:2023) | — | — |
| Internal clearance | CN | CN (Group N) — Normal internal clearance | — | — |
| Sealing | Without | — | — | — |
| Cage | Non-metallic | M1 — Two Piece Brass Cage Roller Guided | Pressed steel | — |
| Lubricant | None | — | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — | — |
| Maximum operating temperatureTmax | — | 150 °C | — | — |
| Boundary dimensions | ||||
| Bearing widthB | — | — | 36 mm | — |
| Minimum bearing chamferr min. | — | — | 2.1 mm | — |
| Minimum secondary bearing chamferr1 min. | — | — | 2.1 mm | — |
| Roller circumscribed circle diameterEw | — | — | 168.8 mm | — |
| Capabilities & suitability | ||||
| Radial load capacity | — | Yes | — | — |
| Suitable for grease lubrication | — | Yes | — | — |
| Suitable for oil lubrication | — | Yes | — | — |
| Unsealed design | — | Yes | — | — |
| Catalogue reference mass | ||||
| Approximate shared-row mass — not separately stated for each rib arrangement | — | — | 4 kg | — |
| Classification | ||||
| Official Category Path | — | — | — | Cylindrical roller bearings - Single-row - NU |
| Official Classification 1 | — | — | — | Cylindrical roller bearings / Single-row / NU |
| Official Classification 2 | — | — | — | Cylindrical roller bearings / Single-row / N |
| Construction | ||||
| Single-row construction type | — | — | N | — |
| Rib arrangement | — | — | Two inner-ring ribs; ribless outer ring | — |
| Standard cage material | — | — | Pressed steel | — |
| Standard cage marking | — | — | W | — |
| Other cage codes listed for this catalogue row | — | — | M | — |
| Precision — designation omission rule | — | — | ISO Normal when no precision suffix is specified | — |
| Clearance identification — verify interchangeability | — | — | No clearance suffix shown. CN omission applies to interchangeable designs; do not infer a numerical clearance. | — |
| Optimized crowning note | — | — | No optimized-crowning asterisk on this row | — |
| Dimensions | ||||
| Minimum chamfer dimensionr1 min | — | 2.1 mm | — | — |
| Minimum chamfer dimensionr1 min | — | 0.083 in | — | — |
| Axial displacements1 | — | 1.2 mm | — | — |
| Axial displacements1 | — | 0.047 in | — | — |
| Raceway diameter outer ringE | — | 171.5 mm | — | — |
| Raceway diameter outer ringE | — | 6.752 in | — | — |
| Engineering — Abutment dimensions | ||||
| Diameter of spacer sleeved a | max. 170 mm | — | — | — |
| Diameter of housing abutmentD a | max. 178 mm | — | — | — |
| Radius of filletr a | max. 2 mm | — | — | — |
| Radius of filletr b | max. 2 mm | — | — | — |
| Engineering — Calculation data | ||||
| SKF performance class | SKF Explorer | — | — | — |
| Minimum load factork r | 0.12 | — | — | — |
| Limiting valuee | 0.2 | — | — | — |
| Calculation factorY | 0.6 | — | — | — |
| Engineering — Dimensions | ||||
| Shoulder diameter of inner ringd 1 | ≈ 134 mm | — | — | — |
| Raceway diameter of outer ringE | 173 mm | — | — | — |
| Chamfer dimensionr 1,2 | min. 2.1 mm | — | — | — |
| Chamfer dimensionr 3,4 | min. 2.1 mm | — | — | — |
| Permissible axial displacements | max. 2 mm | — | — | — |
| Load ratings — standard cage | ||||
| Basic dynamic radial load ratingCr | — | — | 247000 N | — |
| Basic static radial load ratingC0r | — | — | 241000 N | — |
| Logistics | ||||
| Product net weight | 3.88 kg | — | — | — |
| eClass code | 23-05-09-01 | — | — | — |
| UNSPSC code | 31171505 | — | — | — |
| Lubrication-qualified speed — standard cage | ||||
| Thermal speed rating — oil bath | — | — | 4500 r/min | — |
| Mechanical limiting speed — forced oil circulation | — | — | Not stated in this catalogue row | — |
| Limiting speed — grease | — | — | 2600 r/min | — |
| Limiting speed — oil bath | — | — | 3200 r/min | — |
| Main Dimensions & Performance Data | ||||
| Basic dynamic load rating, radialCr | — | 310,000 N | — | — |
| Basic dynamic load rating, radialCr | — | 69,694.245 lbf | — | — |
| Basic static load rating, radialC0r | — | 320,000 N | — | — |
| Basic static load rating, radialC0r | — | 71,942.446 lbf | — | — |
| Fatigue load limit, radialCur | — | 54,000 N | — | — |
| Fatigue load limit, radialCur | — | 12,140.288 lbf | — | — |
| Limiting speed for grease lubricationnG Grease | — | 5,500 1/min | — | — |
| Limiting speed for oil lubricationnG Oil | — | 6,500 1/min | — | — |
| Manufacturer Identity | ||||
| Schaeffler Product Code | — | 367601 | — | — |
| Official Class Key | — | — | — | 040-010-000 |
| Base Type | — | N221 | — | — |
| Gpsd Group | — | F01 | — | — |
| Product Line Id | — | 63 | — | — |
| SAP material number | — | 0192177220000 | — | — |
| Base product | — | 2305090101 | — | — |
| Bearing X designation | — | N221-E-XL-M1 | — | — |
| Mounting Manager ID | — | N221-E-XL-M1 | — | — |
| Grease application ID | — | N221-E-XL-M1 | — | — |
| Mounting dimensions | ||||
| Diameter shaft shoulderda | — | 117 mm | — | — |
| Diameter shaft shoulderda | — | 4.606 in | — | — |
| Diameter of housing shoulderDa | — | 178 mm | — | — |
| Diameter of housing shoulderDa | — | 7.008 in | — | — |
| Maximum recess radiusra1 max | — | 2.1 mm | — | — |
| Maximum recess radiusra1 max | — | 0.083 in | — | — |
| Mounting dimensions — shown arrangement | ||||
| Minimum shaft shoulder diameterda min. | — | — | 116 mm | — |
| Maximum housing shoulder diameterDb max. | — | — | 179 mm | — |
| Minimum housing shoulder diameterDb min. | — | — | 172 mm | — |
| Maximum adjacent fillet radiusra max. | — | — | 2 mm | — |
| Maximum secondary adjacent fillet radiusrb max. | — | — | 2 mm | — |
| Product characteristics | ||||
| Tolerance classPN | — | Normal (ISO 492:2023) | — | — |
| Change markE | — | Increased Capacity Design | — | — |
| Radial internal clearanceCN (Group N) | — | Normal internal clearance | — | — |
| Number of rows1 | — | Single-row design | — | — |
| Product identity | ||||
| Official product category | Cylindrical roller bearings | — | — | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/cylindrical-roller-bearings/single-row-cylindrical-roller-bearings | — | — | — |
| Structure group ID | BC1_001_101 | — | — | — |
| Available from SKF | Yes | — | — | — |
| Remanufacturable | No | — | — | — |
| Product Identity | ||||
| Construction | — | Cylindrical roller bearing N2..-M1, with cage, single row, non-locating bearing, 0 ribs on outer ring, 2 rib on inner ring, type N2 | — | — |
| Short Description | — | Cylindrical roller bearing | — | — |
| Properties | ||||
| Bearing part | Complete bearing | — | — | — |
| Axial displacement capability | In both directions | — | — | — |
| Number of rows | 1 | — | — | — |
| Locating feature, bearing outer ring | Without | — | — | — |
| Bore type | Cylindrical | — | — | — |
| Number of flanges, outer ring | 0 | — | — | — |
| Number of flanges, inner ring | 2 | — | — | — |
| Loose flange | None | — | — | — |
| Radial internal clearance | CN | — | — | — |
| Tolerance class | Normal | — | — | — |
| Coating | Without | — | — | — |
| Relubrication feature | Without | — | — | — |
| Indicative carbon footprint for new product | 14.3 kg CO 2 e | — | — | — |
| Technical Data | ||||
| d | — | — | — | 190 mm |
| Bore Diameter (D) | — | 105 mm | — | — |
| B | — | — | — | 36 mm |
| Outside Diamater (D) | — | 190 mm | — | — |
| R(Min.) | — | — | — | 2.1 mm |
| Total Width (B) | — | 36 mm | — | — |
| R1(Min.) | — | — | — | 2.1 mm |
| Basic Dynamic Load Rating, Radial (Cr) | — | 310,000 N | — | — |
| Ew | — | — | — | - mm |
| Basic Static Load Rating, Radial (C0R) | — | 320,000 N | — | — |
| Basic Load Ratings : Cr | — | — | — | 251 kN |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — |
| Basic Load Ratings : C0R | — | — | — | 241 kN |
| Limiting Speed For Grease Lubrication (Ng Grea) | — | 5,500 1/min | — | — |
| Fatigue Load Limit : Cu | — | — | — | 34.1 kN |
| Minimum Diameter Shaft Shoulder (Da) | — | 117 mm | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | 3300 min-1 |
| Limiting Speed (Ng Oil) | — | 6,500 1/min | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | 3900 min-1 |
| Operating Temperature Max. (Tmax) | — | 150 °C | — | — |
| Sd1 | — | — | — | - mm |
| Axial Displacement (S1) | — | 1.2 mm | — | — |
| B1 | — | — | — | - mm |
| Maximum Diameter Of Housing Shoulder (Da) | — | 178 mm | — | — |
| B2 | — | — | — | - mm |
| Minimum Chamfer Dimension (R1 Min) | — | 2.1 mm | — | — |
| Da(Min.) | — | — | — | - mm |
| Maximum Recess Radius (Ra1 Max) | — | 2.1 mm | — | — |
| Dc(Min.) | — | — | — | - mm |
| Raceway Diameter Outer Ring (E) | — | 171.5 mm | — | — |
| Dd(Min.) | — | — | — | - mm |
| Fatigue Load Limit, Radial (Cur) | — | 54,000 N | — | — |
| Da(Max.) | — | — | — | 179 mm |
| Db(Max.) | — | — | — | - mm |
| Db(Min.) | — | — | — | - mm |
| Ra(Max.) | — | — | — | 2 mm |
| Rb(Max.) | — | — | — | 2 mm |
| Temperature range | ||||
| Operating temperature min.Tmin | — | -30 °C | — | — |
| Operating temperature min.Tmin | — | -22 °F | — | — |
| Operating temperature max.Tmax | — | 150 °C | — | — |
| Operating temperature max.Tmax | — | 302 °F | — | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.