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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Availability:
1 in stock
Metric tapered roller bearing, 35 x 80 x 22.75 mm, flanged cup, pressed steel cage. P5 precision, high-capacity HR series, Cr 93.5 kN, e 0.32.
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| MFR / Brand | NSK |
|---|---|
| MPN | HR30307JFP5 |
| Model | 30307 J F P5 |
| Bearing Type | Tapered Roller Bearing Cone, Open |
| ID | 35 mm (1.3780 in) |
| OD | 80 mm (3.1496 in) |
| Width | 22.75 mm (0.8957 in) |
| Material | Bearing Steel |
|---|---|
| Series | 30300 |
| Base Number | 30307 |
| Industry Terms | metric tapered roller bearing, flanged cup taper bearing, P5 taper bearing, high capacity taper roller, 30307 bearing |
| Bore Shaft Size | 35 mm (1.3780 in) |
| Mpn Variants | HR30307JFP5, HR-30307-JF-P5, HR30307 JF P5, HR30307JF P5, 30307JFP5, 30307 J F P5, 30307 |
| Closure Type | Open |
| Rolling Elements | Tapered Roller |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.20.00 |
| Part Number | HR30307JFP5 |
| Cross Reference 1 | Timken 30307 – unflanged cup, standard class, not HR |
|---|---|
| Cross Reference 2 | SKF 30307 J2 – unflanged cup, standard class, not HR |
| Cross Reference 3 | FAG 30307-A – unflanged cup, standard class, not HR |
| Cross Reference 4 | NTN 30307 – unflanged cup, standard class, not HR |
| Cross Reference 5 | Koyo 30307JR – unflanged cup, standard class, not HR |
| Cross Reference 6 | NSK 30307J – unflanged cup, standard class, not HR |
NSK HR30307JFP5 metric tapered roller bearing, cone and flanged cup. Bore: 35 mm. Outside Diameter: 80 mm. Width: 22.75 mm. Series: 30300 (ISO 303 dimension series). Single row, open, pressed steel cage, bearing steel. Country of Origin: Japan.
HR: NSK’s high-capacity tapered roller design, with a larger roller complement and revised raceway geometry than the base 30307. J: pressed steel cage. F: flanged cup. P5: ISO precision class 5, equivalent to ABEC 5. Searchable forms: HR30307JFP5, HR-30307-JF-P5, HR30307 JF P5, 30307JFP5, 30307.
Dynamic Load Rating (Cr): 93.5 kN (21,019 lbf). Static Load Rating (C0r): 79.0 kN (17,760 lbf). Limiting speed: 5,600 rpm. Operating temperature range: −40 °C to 120 °C. These are figures for the complete bearing, cone and cup together.
Precision class P5 holds tighter bore, outside diameter and running-accuracy tolerances than standard class, which lowers radial and axial runout and reduces vibration at speed — the reason P5 tapers are specified for machine tool spindles, gearbox pinions and geared drives with tight shaft-location budgets. e Factor: 0.32, the thrust-to-radial ratio at which the load calculation changes to its combined-load form. The flanged cup locates the outer ring axially against a through-bored housing face, so no housing shoulder is needed on that side and the seal position is set accurately. The HR high-capacity geometry raises the dynamic rating within the same 35 x 80 x 22.75 mm envelope, which buys calculated life without a size change.
Two pieces ship as one bearing: the cone, comprising the inner ring, rollers and cage, and the flanged cup. Unit Quantity: 1 Set, 2 Pcs. Open, without snap ring. Weight: 1.18 lb.
The 30307 envelope is a common ISO metric taper size: Timken 30307, SKF 30307 J2, FAG 30307-A, NTN 30307, Koyo 30307JR. Those are standard-class open bearings on the same 35 x 80 x 22.75 mm envelope; this bearing adds P5 precision, the HR high-capacity geometry and a flanged cup, so it substitutes for them while they do not substitute for it.
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