NTN 7909 bearings
7909, Angular contact ball bearing, resin cage, contact angle 30
- Measurement system
- Metric
- Bore diameter
- 45.000 mm
- Outside diameter
- 68.000 mm
- Width
- 12.000 mm
- Cr
- 17400 N
- C0r
- 12900 N
- Limiting speed
- 10000 r/min
- Net weight
- 0.150 kg
- Number of rows
- 1
- Contact angle deg
- 30
- Sealing
- Without
- Cage
- Resin cage
- Bearing material
- Steel
- Rolling material
- Steel
- Tolerance class
- Normal (PN)
In stock
Technical specification for NTN 7909
| Part Number | 7909 | |
|---|---|---|
| Brand | NTN | |
| Description | Angular contact ball bearing | |
| Net weight | 0.150 kg | |
| PRODUCT DEFINITION | ||
| d | 45 mm | Internal diameter |
| D | 68 mm | External diameter |
| B | 12 mm | Width |
| a | 22.500 mm | Charge load application point |
| α | 30° | Contact angle |
| rs | 0.6 mm | Min fillet radius |
| r1s | 0.30 mm | Min fillet radius |
| PRODUCT PERFORMANCE | ||
| C | 17.4 kN | Dynamic load |
| C0 | 12.9 kN | Static load |
| Cu | 0.895 kN | Fatigue limit load |
| N | 14 000 tr/min | Oil lubrication limit speed |
| N | 10 000 tr/min | Grease lubrication limit speed |
| ABUTMENT | ||
| da min. | 49.5 mm | Min shoulder diameter IR |
| db min. | 49.5 mm | Min shoulder diameter IR |
| Da max. | 63.5 mm | Max shoulder diameter OR |
| Db max. | 65.5 mm | Max shoulder diameter OR |
| ra max. | 0.6 mm | Max shaft & housing fillet radius |
| r1a max. | 0.3 mm | Max fillet radius |
7909, Brand: NTN, Angular contact ball bearing, Internal diameter 45 mm; External diameter 68 mm; Width 12 mm; 0.150 kg.
NTN 7909, 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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