NTN 7221 bearings
7221, Angular contact ball bearing, pressed cage, contact angle 30°
- Measurement system
- Metric
- Bore diameter
- 105.000 mm
- Outside diameter
- 190.000 mm
- Width
- 36.000 mm
- Cr
- 173000 N
- C0r
- 142000 N
- Limiting speed
- 3700 r/min
- Net weight
- 3.790 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 7221
| Part Number | 7221 | |
|---|---|---|
| Brand | NTN | |
| Description | Angular contact ball bearing | |
| Net weight | 3.790 kg | |
| PRODUCT DEFINITION | ||
| d | 105 mm | Internal diameter |
| D | 190 mm | External diameter |
| B | 36 mm | Width |
| a | 60.500 mm | Charge load application point |
| α | 30° | Contact angle |
| rs | 2.1 mm | Min fillet radius |
| r1s | 1.10 mm | Min fillet radius |
| PRODUCT PERFORMANCE | ||
| C | 173 kN | Dynamic load |
| C0 | 142 kN | Static load |
| Cu | 9.1 kN | Fatigue limit load |
| N | 5 000 tr/min | Oil lubrication limit speed |
| N | 3 700 tr/min | Grease lubrication limit speed |
| ABUTMENT | ||
| da min. | 117 mm | Min shoulder diameter IR |
| db min. | 112 mm | Min shoulder diameter IR |
| Da max. | 178 mm | Max shoulder diameter OR |
| Db max. | 183 mm | Max shoulder diameter OR |
| ra max. | 2 mm | Max shaft & housing fillet radius |
| r1a max. | 1 mm | Max fillet radius |
7221, Brand: NTN, Angular contact ball bearing, Internal diameter 105 mm; External diameter 190 mm; Width 36 mm; 3.790 kg.
NTN 7221, 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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