Cross-brand designation analysis
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Same-model Comparison
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
Exact designations rank first. Dimensions, suffixes and other technical differences remain visible so the result is not mistaken for an interchangeability declaration.
Dimensions verified
“7321” across 5 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 | SKF7321 BEP105 × 225 × 49 mm | FAG7321-B-XL-MP105 × 225 × 49 mm | TIMKEN7321WNMBR105 × 225 × 49 mm | NSK7321A105 × 225 × 49 mm | KOYO7321 FY105 × 225 × 49 mm |
|---|---|---|---|---|---|
| Comparable specifications | |||||
| Brand | SKF | FAG | TIMKEN | NSK | KOYO |
| Designation | 7321 BEP | 7321-B-XL-MP | 7321WNMBR | 7321A | 7321 FY |
| Product family | Angular contact ball bearings | — | Angular Contact Ball | Angular contact ball bearing | Single-row / With machined cage |
| Detailed type | Single row angular contact ball bearing | Angular contact ball bearings | Angular contact ball bearings | Angular contact ball bearings | Angular contact ball bearings |
| Series | — | 7321 | 7300 | — | — |
| Bore diameterd | 105 mm | 105 mm | 105 mm | 105 mm | 105 mm |
| Outside diameterD | 225 mm | 225 mm | 225 mm | 225 mm | 225 mm |
| WidthB | 49 mm | 49 mm | 49 mm | 49 mm | 49 mm |
| Basic dynamic load ratingC | 203 kN | 225 kN | 202 kN | 228 kN | 260 kN |
| Basic static load ratingC0 | 193 kN | 214 kN | 194 kN | 193 kN | 193 kN |
| Fatigue load limitPu | 6.4 kN | 11.5 kN | — | — | 7.75 kN |
| Reference speednref | 3800 r/min | 3400 r/min | — | — | — |
| Limiting speednG | 3400 r/min | 5100 r/min | — | — | 3500 r/min |
| Mass≈m | 8.33 kg | 9.3 kg | 9.48 kg | 9.34 kg | 8.62 kg |
| Precision class | Normal | PN — Normal (ISO 492:2023) | — | — | — |
| Sealing | Without | Without — Not sealed | Open | — | — |
| Cage | Non-metallic | MP — Solid brass cage, ball guided | Brass cage | Machined brass, inner-ring guided | — |
| Bearing material | Bearing steel | — | — | — | — |
| Lubricant | None | Without — Bearing not greased | — | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — | — | — |
| Maximum operating temperatureTmax | — | 150 °C | — | — | — |
| Boundary dimensions | |||||
| Individual bearing widthB | — | — | — | 49 mm | — |
| Minimum bearing chamferr min. | — | — | — | 3 mm | — |
| Minimum secondary bearing chamferr1 min. | — | — | — | 1.1 mm | — |
| Calculation Factors | |||||
| K Factor | — | — | 0.00 | — | — |
| Y1 Factor | — | — | 0.00 | — | — |
| Y2 Factor | — | — | 0.00 | — | — |
| Y0 Factor | — | — | 0.26 | — | — |
| E Factor | — | — | 0.00 | — | — |
| Cg Factor | — | — | 0.0737 | — | — |
| Capabilities & suitability | |||||
| Radial load capacity | — | Yes | — | — | — |
| Axial load capacity in one direction | — | Yes | — | — | — |
| Suitable for grease lubrication | — | Yes | — | — | — |
| Suitable for oil lubrication | — | Yes | — | — | — |
| Unsealed design | — | Yes | — | — | — |
| Classification | |||||
| Official Category Path | — | — | — | — | Angular contact ball bearings - Single-row - With machined cage |
| Official Classification 1 | — | — | — | — | Angular contact ball bearings / Single-row / With machined cage |
| Construction | |||||
| Nominal contact angleα | — | — | — | 30 ° | — |
| Standard cage code | — | — | — | M usually omitted | — |
| Optional cage codes — ratings require separate confirmation | — | — | — | T | — |
| Catalogue matching scope | — | — | — | DB, DF, DT | — |
| Cage material and construction | — | — | — | Machined brass, inner-ring guided | — |
| Construction / arrangement | — | — | — | Single-row angular contact bearing | — |
| Dimensions | |||||
| Contact angle | 40.0 ° | — | — | — | — |
| Minimum chamfer dimensionrmin | — | 3 mm | — | — | — |
| Minimum chamfer dimensionrmin | — | 0.118 in | — | — | — |
| Minimum chamfer dimensionr1 min | — | 1.1 mm | — | — | — |
| Minimum chamfer dimensionr1 min | — | 0.043 in | — | — | — |
| Shoulder diameter on outer ring wide side faceD1 | — | 178.9 mm | — | — | — |
| Shoulder diameter on outer ring wide side faceD1 | — | 7.043 in | — | — | — |
| Shoulder diameter on inner ring wide side faced1 | — | 154 mm | — | — | — |
| Shoulder diameter on inner ring wide side faced1 | — | 6.063 in | — | — | — |
| Distance between the apexes of the pressure conesa | — | 93.7 mm | — | — | — |
| Distance between the apexes of the pressure conesa | — | 3.689 in | — | — | — |
| Contact angleα | — | 40 ° | — | — | — |
| Engineering — Abutment dimensions | |||||
| Diameter of shaft abutmentd a | min. 119 mm | — | — | — | — |
| Abutment diameter housingD a | max. 211 mm | — | — | — | — |
| Diameter of housing abutmentD b | max. 218 mm | — | — | — | — |
| Radius of filletr a | max. 2.5 mm | — | — | — | — |
| Radius of filletr b | max. 1 mm | — | — | — | — |
| Engineering — Calculation data | |||||
| Minimum axial load factorA | 0.67 | — | — | — | — |
| Minimum radial load factork r | 0.1 | — | — | — | — |
| Limiting valuee | 1.1 | — | — | — | — |
| Engineering — Calculation data — Bearing pair arranged back-to-back or face-to-face | |||||
| Calculation factor (back-to-back, face-to-face)X | 0.57 | — | — | — | — |
| Calculation factor (back-to-back, face-to-face)Y 0 | 0.52 | — | — | — | — |
| Calculation factor (back-to-back, face-to-face)Y 1 | 0.55 | — | — | — | — |
| Calculation factor (back-to-back, face-to-face)Y 2 | 0.93 | — | — | — | — |
| Engineering — Calculation data — Single bearing or bearing pair arranged in tandem | |||||
| Calculation factor (single, tandem)X | 0.35 | — | — | — | — |
| Calculation factor (single, tandem)Y 0 | 0.26 | — | — | — | — |
| Calculation factor (single, tandem)Y 2 | 0.57 | — | — | — | — |
| Engineering — Dimensions | |||||
| Deviation limits of mid-range bore diametert Δdmp | -0.02 to 0 mm | — | — | — | — |
| Deviation limits of mid-range outside diametert ΔDmp | -0.03 to 0 mm | — | — | — | — |
| Deviation limits of ring widtht ΔBs | -0.2 to 0 mm | — | — | — | — |
| Shoulder diameter of inner ring (large side face)d 1 | ≈ 151.65 mm | — | — | — | — |
| Shoulder diameter of inner ring (small side face)d 2 | ≈ 127.87 mm | — | — | — | — |
| Shoulder diameter of outer ring (large side face)D 1 | ≈ 180.8 mm | — | — | — | — |
| Distance side face to pressure pointa | 94 mm | — | — | — | — |
| Chamfer dimensionr 1,2 | min. 3 mm | — | — | — | — |
| Chamfer dimensionr 3,4 | min. 1.1 mm | — | — | — | — |
| ISO tolerance class for dimensions | Normal | — | — | — | — |
| Engineering — Tolerances of run-out | |||||
| Range of section height at inner ring of assembled bearingt Kia | 25 µm | — | — | — | — |
| Range of section height at outer ring of assembled bearingt Kea | 50 µm | — | — | — | — |
| ISO tolerance class for geometrical tolerances | Normal | — | — | — | — |
| Load ratings | |||||
| Basic dynamic radial load ratingCr | — | — | — | 228000 N | — |
| Basic static radial load ratingC0r | — | — | — | 193000 N | — |
| Load-centre geometry | |||||
| Single-bearing effective load centrea | — | — | — | 72.1 mm | — |
| Logistics | |||||
| Product net weight | 8.33 kg | — | — | — | — |
| eClass code | 23-05-08-03 | — | — | — | — |
| UNSPSC code | 31171531 | — | — | — | — |
| Lubrication-qualified speed | |||||
| Limiting speed — grease | — | — | — | 2600 r/min | — |
| Limiting speed — oil | — | — | — | 3600 r/min | — |
| Main Dimensions & Performance Data | |||||
| Basic dynamic load rating, radialCr | — | 225,000 N | — | — | — |
| Basic dynamic load rating, radialCr | — | 50,584.532 lbf | — | — | — |
| Basic static load rating, radialC0r | — | 214,000 N | — | — | — |
| Basic static load rating, radialC0r | — | 48,111.511 lbf | — | — | — |
| Fatigue load limit, radialCur | — | 11,500 N | — | — | — |
| Fatigue load limit, radialCur | — | 2,585.432 lbf | — | — | — |
| Manufacturer Identity | |||||
| Schaeffler Product Code | — | 359983 | — | — | — |
| Material Number | — | — | 000000000100013366 | — | — |
| Official Class Key | — | — | — | — | 020-010-000 |
| Base Type | — | 7321 | — | — | — |
| World Assembly Part Number | — | — | 7321WNMBRC1 | — | — |
| Old Designation | — | ["7321-B-MP","7321B.MP"] | — | — | — |
| Upc | — | — | 0087796074323 | — | — |
| Gpsd Group | — | S03 | — | — | — |
| Product Line Id | — | 14 | — | — | — |
| X Life Marking | — | XL | — | — | — |
| Official Source System | — | — | CORE BP - DS DF | — | — |
| Official Last Run | — | — | 2026-08-23T20:02:47.063 | — | — |
| SAP material number | — | 0191182950000 | — | — | — |
| Base product | — | 2305080301 | — | — | — |
| Bearing X designation | — | 7321-B-XL-MP | — | — | — |
| Mounting Manager ID | — | 7321-B-XL-MP | — | — | — |
| Grease application ID | — | 7321-B-XL-MP | — | — | — |
| Mass reference | |||||
| Approximate mass | — | — | — | 9.34 kg | — |
| Mounting dimensions | |||||
| Minimum diameter of shaft shoulderda min | — | 119 mm | — | — | — |
| Minimum diameter of shaft shoulderda min | — | 4.685 in | — | — | — |
| Maximum diameter of housing shoulderDa max | — | 211 mm | — | — | — |
| Maximum diameter of housing shoulderDa max | — | 8.307 in | — | — | — |
| Maximum diameter of housing shoulderDb max | — | 218 mm | — | — | — |
| Maximum diameter of housing shoulderDb max | — | 8.583 in | — | — | — |
| Maximum fillet radius of shaftra max | — | 2.5 mm | — | — | — |
| Maximum fillet radius of shaftra max | — | 0.098 in | — | — | — |
| Maximum fillet radius of housingra1 max | — | 1 mm | — | — | — |
| Maximum fillet radius of housingra1 max | — | 0.039 in | — | — | — |
| Mounting dimensions — shown arrangement | |||||
| Minimum shaft shoulder diameterda min. | — | — | — | 119 mm | — |
| Maximum housing shoulder diameterDa max. | — | — | — | 211 mm | — |
| Maximum adjacent fillet radiusra max. | — | — | — | 2.5 mm | — |
| Product characteristics | |||||
| Design variant | — | B | — | — | — |
| Type of SealWithout | — | Not sealed | — | — | — |
| Tolerance classPN | — | Normal (ISO 492:2023) | — | — | — |
| Dimensional / heat stabilizationS0 | — | Rings dimensional stabilized up to 150° | — | — | — |
| Product identity | |||||
| Official product category | Angular contact ball bearings | — | — | — | — |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/angular-contact-ball-bearings/single-row-angular-contact-ball-bearings | — | — | — | — |
| Structure group ID | BA1_001_101 | — | — | — | — |
| Available from SKF | Yes | — | — | — | — |
| Remanufacturable | No | — | — | — | — |
| Product Identity | |||||
| Type Description | — | — | Angular Contact Ball | — | — |
| Construction | — | Angular contact ball bearing 73..-B-XL-MP, single row, X-life, solid brass cage | Single Row Angular Contact Ball Bearing | Imperial Series | 4.1339 in Bore | 8.8583 in OD | 1.9291 in Width | Open | Cylindrical Bore | Brass Cage | 40° Contact Angle | ISO P0 Tolerance | — | — |
| Number Of Rows | 1 | — | 1 | — | — |
| Tapered Bore | — | — | N | — | — |
| Short Description | — | Angular contact ball bearing | — | — | — |
| Properties | |||||
| Contact type | Normal contact (two-point contact) | — | — | — | — |
| Locating feature, bearing outer ring | Without | — | — | — | — |
| Ring type | One-piece inner and outer rings | — | — | — | — |
| Matched arrangement | No | — | — | — | — |
| Universal matching bearing | No | — | — | — | — |
| Axial internal clearance | Not applicable | — | — | — | — |
| Tolerance class | Normal | — | — | — | — |
| Material, bearing | Bearing steel | — | — | — | — |
| Coating | Without | — | — | — | — |
| Relubrication feature | Without | — | — | — | — |
| Indicative carbon footprint for new product | 30.8 kg CO 2 e | — | — | — | — |
| Technical Data | |||||
| d | — | — | — | — | 225 mm |
| B | — | — | — | — | 49 mm |
| Overall Width | — | — | 0.000 mm | — | — |
| R(Min.) | — | — | — | — | 3 mm |
| Radial Rating | — | — | 224,000 N | — | — |
| R1(Min.) | — | — | — | — | 1.1 mm |
| Axial Rating | — | — | 0 N | — | — |
| Basic Load Ratings : Cr | — | — | — | — | 260 kN |
| Bore Diameter (D) | — | 105 mm | — | — | — |
| Dynamic Rating C1 | — | — | 202,000 N | — | — |
| Basic Load Ratings : C0R | — | — | — | — | 193 kN |
| Outside Diameter (D) | — | 225 mm | — | — | — |
| Dynamic Rating C90 | — | — | 0 N | — | — |
| Fatigue Load Limit : Cu | — | — | — | — | 7.75 kN |
| Width (B) | — | 49 mm | — | — | — |
| Dynamic Axial Rating Ca90 | — | — | 0 N | — | — |
| Basic Dynamic Load Rating, Radial (Cr) | — | 225,000 N | — | — | — |
| Dynamic Axial Rating Ca1 | — | — | 0 N | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | — | 3500 min-1 |
| Basic Static Load Rating, Radial (C0R) | — | 214,000 N | — | — | — |
| Static Radial Rating C0 | — | — | 194,000 N | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | — | 4400 min-1 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — | — |
| Extended Dynamic Rating Ce | — | — | 224,000 N | — | — |
| Load Center Spread : A | — | — | — | — | 72.1 mm |
| Limiting Speed (Ng) | — | 5,100 1/min | — | — | — |
| Static Axial Rating C0A | — | — | 0 N | — | — |
| Da(Min.) | — | — | — | — | 119 mm |
| Operating Temperature Max. (Tmax) | — | 150 °C | — | — | — |
| Da(Max.) | — | — | — | — | 211 mm |
| Reference Speed (Nϑr) | — | 3,400 1/min | — | — | — |
| Ra(Max.) | — | — | — | — | 2.5 mm |
| Maximum Diameter Of Housing Shoulder (Db Max) | — | 218 mm | — | — | — |
| Mass(Refer.) | — | — | — | — | 8.62 kg |
| Fatigue Load Limit, Radial (Cur) | — | 11,500 N | — | — | — |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 119 mm | — | — | — |
| Shoulder Diameter Inner Ring (D1) | — | 154 mm | — | — | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 211 mm | — | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 3 mm | — | — | — |
| Maximum Fillet Radius (Ra Max) | — | 2.5 mm | — | — | — |
| Maximum Recess Radius (Ra1 Max) | — | 1 mm | — | — | — |
| Shoulder Diameter Outer Ring (D1) | — | 178.9 mm | — | — | — |
| Minimum Chamfer Dimension (R1 Min) | — | 1.1 mm | — | — | — |
| Contact Angle (Α) | — | 40 ° | — | — | — |
| Distance Between The Apexes Of The Pressure Cones (A) | — | 93.7 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.