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“7338” 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 | SKF7338 BCBM190 × 400 × 78 mm | FAG7338-B-MP-UA190 × 400 × 78 mm | NSK7338A190 × 400 × 78 mm | KOYO7338 FY190 × 400 × 78 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | SKF | FAG | NSK | KOYO |
| Designation | 7338 BCBM | 7338-B-MP-UA | 7338A | 7338 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 | — | 7338 | — | — |
| Bore diameterd | 190 mm | 190 mm | 190 mm | 190 mm |
| Outside diameterD | 400 mm | 400 mm | 400 mm | 400 mm |
| WidthB | 78 mm | 78 mm | 78 mm | 78 mm |
| Basic dynamic load ratingC | 442 kN | 440 kN | 495 kN | 563 kN |
| Basic static load ratingC0 | 600 kN | 630 kN | 600 kN | 598 kN |
| Fatigue load limitPu | 14.6 kN | 19.2 kN | — | 18 kN |
| Reference speednref | 2000 r/min | 1680 r/min | — | — |
| Limiting speednG | 2400 r/min | 2490 r/min | — | 1800 r/min |
| Mass≈m | 48.3 kg | 47.9 kg | 47.5 kg | 45.5 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 | — | — |
| Additional information | ||||
| Tolerance for axial clearance or preload per setTol(+) | — | 16 µm | — | — |
| Tolerance for axial clearance or preload per setTol(+) | — | 0.00063 in | — | — |
| Axial clearance per set min.Amin | — | 80 mm | — | — |
| Axial clearance per set min.Amin | — | 3.15 in | — | — |
| Boundary dimensions | ||||
| Individual bearing widthB | — | — | 78 mm | — |
| Minimum bearing chamferr min. | — | — | 5 mm | — |
| Minimum secondary bearing chamferr1 min. | — | — | 2 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 | — | — | 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 | — | 5 mm | — | — |
| Minimum chamfer dimensionrmin | — | 0.197 in | — | — |
| Minimum chamfer dimensionr1 min | — | 2 mm | — | — |
| Minimum chamfer dimensionr1 min | — | 0.079 in | — | — |
| Shoulder diameter on outer ring wide side faceD1 | — | 318 mm | — | — |
| Shoulder diameter on outer ring wide side faceD1 | — | 12.52 in | — | — |
| Shoulder diameter on inner ring wide side faced1 | — | 273 mm | — | — |
| Shoulder diameter on inner ring wide side faced1 | — | 10.748 in | — | — |
| Distance between the apexes of the pressure conesa | — | 162.8 mm | — | — |
| Distance between the apexes of the pressure conesa | — | 6.409 in | — | — |
| Contact angleα | — | 40 ° | — | — |
| Engineering — Abutment dimensions | ||||
| Diameter of shaft abutmentd a | min. 210 mm | — | — | — |
| Abutment diameter housingD a | max. 380 mm | — | — | — |
| Diameter of housing abutmentD b | max. 390 mm | — | — | — |
| Radius of filletr a | max. 4 mm | — | — | — |
| Radius of filletr b | max. 2 mm | — | — | — |
| Engineering — Calculation data | ||||
| Minimum axial load factorA | 6.5 | — | — | — |
| Minimum radial load factork r | 0.09 | — | — | — |
| 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 | ≈ 271.6 mm | — | — | — |
| Shoulder diameter of inner ring (small side face)d 2 | ≈ 231.8 mm | — | — | — |
| Shoulder diameter of outer ring (large side face)D 1 | ≈ 324.25 mm | — | — | — |
| Distance side face to pressure pointa | 164 mm | — | — | — |
| Chamfer dimensionr 1,2 | min. 5 mm | — | — | — |
| Chamfer dimensionr 3,4 | min. 2 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 | — | — | 495000 N | — |
| Basic static radial load ratingC0r | — | — | 600000 N | — |
| Load-centre geometry | ||||
| Single-bearing effective load centrea | — | — | 124.2 mm | — |
| Logistics | ||||
| Product net weight | 48.3 kg | — | — | — |
| eClass code | 23-05-08-03 | — | — | — |
| UNSPSC code | 31171531 | — | — | — |
| Lubrication-qualified speed | ||||
| Limiting speed — grease | — | — | 1400 r/min | — |
| Limiting speed — oil | — | — | 1900 r/min | — |
| Main Dimensions & Performance Data | ||||
| Basic dynamic load rating, radialCr | — | 440,000 N | — | — |
| Basic dynamic load rating, radialCr | — | 98,920.863 lbf | — | — |
| Basic static load rating, radialC0r | — | 630,000 N | — | — |
| Basic static load rating, radialC0r | — | 141,636.691 lbf | — | — |
| Fatigue load limit, radialCur | — | 19,200 N | — | — |
| Fatigue load limit, radialCur | — | 4,316.547 lbf | — | — |
| Manufacturer Identity | ||||
| Schaeffler Product Code | — | 359773 | — | — |
| Official Class Key | — | — | — | 020-010-000 |
| Base Type | — | 7338 | — | — |
| Old Designation | — | ["7338B.MP.UA"] | — | — |
| Gpsd Group | — | S03 | — | — |
| Product Line Id | — | 14 | — | — |
| SAP material number | — | 0191186270000 | — | — |
| Base product | — | 2305080301 | — | — |
| Bearing X designation | — | 7338-B-MP-UA | — | — |
| Mounting Manager ID | — | 7338-B-MP-UA | — | — |
| Grease application ID | — | 7338-B-MP-UA | — | — |
| Mass reference | ||||
| Approximate mass | — | — | 47.5 kg | — |
| Mounting dimensions | ||||
| Minimum diameter of shaft shoulderda min | — | 210 mm | — | — |
| Minimum diameter of shaft shoulderda min | — | 8.268 in | — | — |
| Maximum diameter of housing shoulderDa max | — | 380 mm | — | — |
| Maximum diameter of housing shoulderDa max | — | 14.961 in | — | — |
| Maximum diameter of housing shoulderDb max | — | 389 mm | — | — |
| Maximum diameter of housing shoulderDb max | — | 15.315 in | — | — |
| Maximum fillet radius of shaftra max | — | 4 mm | — | — |
| Maximum fillet radius of shaftra max | — | 0.157 in | — | — |
| Maximum fillet radius of housingra1 max | — | 2 mm | — | — |
| Maximum fillet radius of housingra1 max | — | 0.079 in | — | — |
| Mounting dimensions — shown arrangement | ||||
| Minimum shaft shoulder diameterda min. | — | — | 212 mm | — |
| Maximum housing shoulder diameterDa max. | — | — | 378 mm | — |
| Maximum adjacent fillet radiusra max. | — | — | 4 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° | — | — |
| Bearing with matched conditions for fitting in pairsUA | — | Bearing set with small axial internal clearance | — | — |
| 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 73..-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 | 179.0 kg CO 2 e | — | — | — |
| Technical Data | ||||
| d | — | — | — | 400 mm |
| B | — | — | — | 78 mm |
| R(Min.) | — | — | — | 5 mm |
| R1(Min.) | — | — | — | 2 mm |
| Bore Diameter (D) | — | 190 mm | — | — |
| Basic Load Ratings : Cr | — | — | — | 563 kN |
| Outside Diameter (D) | — | 400 mm | — | — |
| Basic Load Ratings : C0R | — | — | — | 598 kN |
| Width (B) | — | 78 mm | — | — |
| Fatigue Load Limit : Cu | — | — | — | 18.0 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 440,000 N | — | — |
| Basic Static Load Rating, Radial (C0R) | — | 630,000 N | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | 1800 min-1 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | 2200 min-1 |
| Limiting Speed (Ng) | — | 2,490 1/min | — | — |
| Load Center Spread : A | — | — | — | 124.2 mm |
| Operating Temperature Max. (Tmax) | — | 200 °C | — | — |
| Da(Min.) | — | — | — | 212 mm |
| Reference Speed (Nϑr) | — | 1,680 1/min | — | — |
| Da(Max.) | — | — | — | 378 mm |
| Maximum Diameter Of Housing Shoulder (Db Max) | — | 389 mm | — | — |
| Ra(Max.) | — | — | — | 4 mm |
| Tolerance For Axial Clearance Or Preload Per Set (Tol(+)) | — | 16 µm | — | — |
| Mass(Refer.) | — | — | — | 45.5 kg |
| Fatigue Load Limit, Radial (Cur) | — | 19,200 N | — | — |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 210 mm | — | — |
| Shoulder Diameter Inner Ring (D1) | — | 273 mm | — | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 380 mm | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 5 mm | — | — |
| Maximum Fillet Radius (Ra Max) | — | 4 mm | — | — |
| Maximum Recess Radius (Ra1 Max) | — | 2 mm | — | — |
| Shoulder Diameter Outer Ring (D1) | — | 318 mm | — | — |
| Minimum Chamfer Dimension (R1 Min) | — | 2 mm | — | — |
| Contact Angle (Α) | — | 40 ° | — | — |
| Distance Between The Apexes Of The Pressure Cones (A) | — | 162.8 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.