NTN 7308 bearings
7308, Angular contact ball bearing, pressed cage, contact angle 30°
- Measurement system
- Metric
- Bore diameter
- 40.000 mm
- Outside diameter
- 90.000 mm
- Width
- 23.000 mm
- Cr
- 54000 N
- C0r
- 33000 N
- Limiting speed
- 8600 r/min
- Net weight
- 0.630 kg
- Number of rows
- 1
- Contact angle deg
- 30
- Sealing
- Without
- Cage
- Steel sheet
- Bearing material
- Steel
- Rolling material
- Steel
- Tolerance class
- Normal (PN)
In stock
Technical specification for NTN 7308
| Part Number | 7308 | |
|---|---|---|
| Brand | NTN | |
| Description | Angular contact ball bearing | |
| Net weight | 0.630 kg | |
| PRODUCT DEFINITION | ||
| d | 40 mm | Internal diameter |
| D | 90 mm | External diameter |
| B | 23 mm | Width |
| a | 30.500 mm | Charge load application point |
| α | 30° | Contact angle |
| rs | 1.5 mm | Min fillet radius |
| r1s | 1.00 mm | Min fillet radius |
| PRODUCT PERFORMANCE | ||
| C | 54 kN | Dynamic load |
| C0 | 33 kN | Static load |
| Cu | 2.58 kN | Fatigue limit load |
| N | 12 000 tr/min | Oil lubrication limit speed |
| N | 8 600 tr/min | Grease lubrication limit speed |
| ABUTMENT | ||
| da min. | 48.5 mm | Min shoulder diameter IR |
| db min. | 45.5 mm | Min shoulder diameter IR |
| Da max. | 81.5 mm | Max shoulder diameter OR |
| Db max. | 84.5 mm | Max shoulder diameter OR |
| ra max. | 1.5 mm | Max shaft & housing fillet radius |
| r1a max. | 1 mm | Max fillet radius |
7308, Brand: NTN, Angular contact ball bearing, Internal diameter 40 mm; External diameter 90 mm; Width 23 mm; 0.630 kg.
NTN 7308, single row angular contact ball bearing is designed to withstand combined loads with a predominant axial componen. Installed in opposition with another bearing of the same type, it guarantees high mounting rigidity.
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