Cross-brand designation analysis
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You entered 7238BDF. This table explores the base group 7238; it does not preserve or approve every requested suffix. Search your complete marking first →
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“7238” 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 | SKF7238 BCBM190 × 340 × 55 mm | FAG7238-B-MP190 × 340 × 55 mm | NSK7238A190 × 340 × 55 mm | KOYO7238 FY190 × 340 × 55 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | SKF | FAG | NSK | KOYO |
| Designation | 7238 BCBM | 7238-B-MP | 7238A | 7238 FY |
| Product family | Angular contact ball bearings | — | 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 |
| Series | — | 7238 | — | — |
| Bore diameterd | 190 mm | 190 mm | 190 mm | 190 mm |
| Outside diameterD | 340 mm | 340 mm | 340 mm | 340 mm |
| WidthB | 55 mm | 55 mm | 55 mm | 55 mm |
| Basic dynamic load ratingC | 307 kN | 300 kN | 345 kN | 379 kN |
| Basic static load ratingC0 | 405 kN | 425 kN | 410 kN | 390 kN |
| Fatigue load limitPu | 10.4 kN | 13.6 kN | — | 12.4 kN |
| Reference speednref | 2200 r/min | 2140 r/min | — | — |
| Limiting speednG | 2600 r/min | 2950 r/min | — | 2000 r/min |
| Mass≈m | 20.8 kg | 22.6 kg | 22.4 kg | 18.8 kg |
| Precision class | P6 | PN — Normal (ISO 492:2023) | — | — |
| Sealing | Without | Without — Not sealed | — | — |
| Cage | Machined brass | MP — Solid brass cage, ball guided | Machined brass, inner-ring guided | — |
| Bearing material | Bearing steel | — | — | — |
| Lubricant | None | Without — Bearing not greased | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — | — |
| Maximum operating temperatureTmax | — | 200 °C | — | — |
| Boundary dimensions | ||||
| Individual bearing widthB | — | — | 55 mm | — |
| Minimum bearing chamferr min. | — | — | 4 mm | — |
| Minimum secondary bearing chamferr1 min. | — | — | 1.5 mm | — |
| 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 | — | — |
| Largebearing | — | 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 | — | — | None listed | — |
| 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 | — | 4 mm | — | — |
| Minimum chamfer dimensionrmin | — | 0.157 in | — | — |
| Minimum chamfer dimensionr1 min | — | 1.5 mm | — | — |
| Minimum chamfer dimensionr1 min | — | 0.059 in | — | — |
| Shoulder diameter on outer ring wide side faceD1 | — | 281 mm | — | — |
| Shoulder diameter on outer ring wide side faceD1 | — | 11.063 in | — | — |
| Shoulder diameter on inner ring wide side faced1 | — | 250 mm | — | — |
| Shoulder diameter on inner ring wide side faced1 | — | 9.843 in | — | — |
| Distance between the apexes of the pressure conesa | — | 138.7 mm | — | — |
| Distance between the apexes of the pressure conesa | — | 5.461 in | — | — |
| Contact angleα | — | 40 ° | — | — |
| Engineering — Abutment dimensions | ||||
| Diameter of shaft abutmentd a | min. 207 mm | — | — | — |
| Abutment diameter housingD a | max. 323 mm | — | — | — |
| Diameter of housing abutmentD b | max. 331 mm | — | — | — |
| Radius of filletr a | max. 3 mm | — | — | — |
| Radius of filletr b | max. 1.5 mm | — | — | — |
| Engineering — Calculation data | ||||
| Minimum axial load factorA | 2.6 | — | — | — |
| Minimum radial load factork r | 0.08 | — | — | — |
| 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 | -0.022 to 0 mm | — | — | — |
| Deviation limits of mid-range outside diametert ΔDmp | -0.028 to 0 mm | — | — | — |
| Deviation limits of ring widtht ΔBs | -0.3 to 0 mm | — | — | — |
| Shoulder diameter of inner ring (large side face)d 1 | ≈ 250.4 mm | — | — | — |
| Shoulder diameter of inner ring (small side face)d 2 | ≈ 224.1 mm | — | — | — |
| Shoulder diameter of outer ring (large side face)D 1 | ≈ 285.4 mm | — | — | — |
| Distance side face to pressure pointa | 139 mm | — | — | — |
| Chamfer dimensionr 1,2 | min. 4 mm | — | — | — |
| Chamfer dimensionr 3,4 | min. 1.5 mm | — | — | — |
| ISO tolerance class for dimensions | P6 | — | — | — |
| Engineering — Tolerances of run-out | ||||
| Range of section height at inner ring of assembled bearingt Kia | 20 µm | — | — | — |
| Range of section height at outer ring of assembled bearingt Kea | 35 µm | — | — | — |
| ISO tolerance class for geometrical tolerances | P6 | — | — | — |
| Load ratings | ||||
| Basic dynamic radial load ratingCr | — | — | 345000 N | — |
| Basic static radial load ratingC0r | — | — | 410000 N | — |
| Load-centre geometry | ||||
| Single-bearing effective load centrea | — | — | 104 mm | — |
| Logistics | ||||
| Product net weight | 20.8 kg | — | — | — |
| eClass code | 23-05-08-03 | — | — | — |
| UNSPSC code | 31171531 | — | — | — |
| Lubrication-qualified speed | ||||
| Limiting speed — grease | — | — | 1600 r/min | — |
| Limiting speed — oil | — | — | 2200 r/min | — |
| Main Dimensions & Performance Data | ||||
| Basic dynamic load rating, radialCr | — | 300,000 N | — | — |
| Basic dynamic load rating, radialCr | — | 67,446.043 lbf | — | — |
| Basic static load rating, radialC0r | — | 425,000 N | — | — |
| Basic static load rating, radialC0r | — | 95,548.561 lbf | — | — |
| Fatigue load limit, radialCur | — | 13,600 N | — | — |
| Fatigue load limit, radialCur | — | 3,057.554 lbf | — | — |
| Manufacturer Identity | ||||
| Schaeffler Product Code | — | 1794525 | — | — |
| Official Class Key | — | — | — | 020-010-000 |
| Base Type | — | 7238 | — | — |
| Product Line Id | — | 14 | — | — |
| Base product | — | 2305080301 | — | — |
| Bearing X designation | — | 7238-B-MP | — | — |
| Mounting Manager ID | — | 7238-B-MP | — | — |
| Grease application ID | — | 7238-B-MP | — | — |
| Mass reference | ||||
| Approximate mass | — | — | 22.4 kg | — |
| Mounting dimensions | ||||
| Minimum diameter of shaft shoulderda min | — | 207 mm | — | — |
| Minimum diameter of shaft shoulderda min | — | 8.15 in | — | — |
| Maximum diameter of housing shoulderDa max | — | 323 mm | — | — |
| Maximum diameter of housing shoulderDa max | — | 12.717 in | — | — |
| Maximum diameter of housing shoulderDb max | — | 331 mm | — | — |
| Maximum diameter of housing shoulderDb max | — | 13.031 in | — | — |
| Maximum fillet radius of shaftra max | — | 3 mm | — | — |
| Maximum fillet radius of shaftra max | — | 0.118 in | — | — |
| Maximum fillet radius of housingra1 max | — | 1.5 mm | — | — |
| Maximum fillet radius of housingra1 max | — | 0.059 in | — | — |
| Mounting dimensions — shown arrangement | ||||
| Minimum shaft shoulder diameterda min. | — | — | 208 mm | — |
| Maximum housing shoulder diameterDa max. | — | — | 322 mm | — |
| Maximum adjacent fillet radiusra max. | — | — | 3 mm | — |
| Product characteristics | ||||
| Design variant | — | B | — | — |
| Type of SealWithout | — | Not sealed | — | — |
| Tolerance classPN | — | Normal (ISO 492:2023) | — | — |
| Dimensional / heat stabilizationS1 | — | Rings dimensional stabilized up to 200° | — | — |
| 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 | Yes | — | — | — |
| Product Identity | ||||
| Construction | — | Angular contact ball bearing 72..-B-MP, single row, solid brass cage | — | — |
| Short Description | — | Angular contact ball bearing | — | — |
| Properties | ||||
| Contact type | Normal contact (two-point contact) | — | — | — |
| Number of rows | 1 | — | — | — |
| Locating feature, bearing outer ring | Without | — | — | — |
| Ring type | One-piece inner and outer rings | — | — | — |
| Matched arrangement | No | — | — | — |
| Universal matching bearing | Yes | — | — | — |
| Axial internal clearance | Not applicable | — | — | — |
| Matched condition (axial clearance/ preload) | Axial clearance CB | — | — | — |
| Tolerance class | Class 6 (P6) | — | — | — |
| Material, bearing | Bearing steel | — | — | — |
| Coating | Without | — | — | — |
| Relubrication feature | Without | — | — | — |
| Indicative carbon footprint for new product | 77.0 kg CO 2 e | — | — | — |
| Technical Data | ||||
| d | — | — | — | 340 mm |
| B | — | — | — | 55 mm |
| Bore Diameter (D) | — | 190 mm | — | — |
| R(Min.) | — | — | — | 4 mm |
| Outside Diameter (D) | — | 340 mm | — | — |
| R1(Min.) | — | — | — | 1.5 mm |
| Width (B) | — | 55 mm | — | — |
| Basic Load Ratings : Cr | — | — | — | 379 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 300,000 N | — | — |
| Basic Load Ratings : C0R | — | — | — | 390 kN |
| Basic Static Load Rating, Radial (C0R) | — | 425,000 N | — | — |
| Fatigue Load Limit : Cu | — | — | — | 12.4 kN |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — |
| Limiting Speed (Ng) | — | 2,950 1/min | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | 2000 min-1 |
| Operating Temperature Max. (Tmax) | — | 200 °C | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | 2500 min-1 |
| Reference Speed (Nϑr) | — | 2,140 1/min | — | — |
| Load Center Spread : A | — | — | — | 104.0 mm |
| Maximum Diameter Of Housing Shoulder (Db Max) | — | 331 mm | — | — |
| Da(Min.) | — | — | — | 208 mm |
| Fatigue Load Limit, Radial (Cur) | — | 13,600 N | — | — |
| Da(Max.) | — | — | — | 322 mm |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 207 mm | — | — |
| Ra(Max.) | — | — | — | 3 mm |
| Shoulder Diameter Inner Ring (D1) | — | 250 mm | — | — |
| Mass(Refer.) | — | — | — | 18.8 kg |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 323 mm | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 4 mm | — | — |
| Maximum Fillet Radius (Ra Max) | — | 3 mm | — | — |
| Maximum Recess Radius (Ra1 Max) | — | 1.5 mm | — | — |
| Shoulder Diameter Outer Ring (D1) | — | 281 mm | — | — |
| Minimum Chamfer Dimension (R1 Min) | — | 1.5 mm | — | — |
| Contact Angle (Α) | — | 40 ° | — | — |
| Distance Between The Apexes Of The Pressure Cones (A) | — | 138.7 mm | — | — |
| Temperature range | ||||
| Operating temperature min.Tmin | — | -30 °C | — | — |
| Operating temperature min.Tmin | — | -22 °F | — | — |
| Operating temperature max.Tmax | — | 200 °C | — | — |
| Operating temperature max.Tmax | — | 392 °F | — | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.