Deep groove ball bearing, radial contact, pressed steel cage, snap ring & groove on outer diameter, shields on both sides
The single row deep-groove ball bearing is the most popular bearing. It is available in a wide range of sizes with several possible options: sealing with shields or seals, presence of a retaining ring, varied clearances, several cage types, etc.
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Product information
| PRODUCT DEFINITION | |
|---|---|
| Brand | NTN |
| d - Internal diameter | 30 mm |
| D - External diameter | 72 mm |
| B - Bearing/Inner ring width | 19 mm |
| a min - Min position Groove | 3,07 mm |
| a max - Max position groove | 3,28 mm |
| rs - Min fillet radius | 1,1 mm |
| rNs - Min fillet radius | 0,5 mm |
| D3 - Max bottom groove diameter | 68,81 mm |
| b min - Min groove width | 1,9 mm |
| b max - Max groove width | 2,2 mm |
| r0 max - Max bottom groove radius | 0,6 mm |
| D4 max - Max outer diameter of assembled stop ring | 78,6 mm |
| f - Stop ring thickness | 1,7 mm |
| Snap ring reference | R72 |
| Radial clearance class | C3 |
| Mass | 0,36 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 29,5 kN |
| C0 - Static load | 15 kN |
| Cu - Fatigue limit load | 1,14 kN |
| f0 - Coefficient | 13.3 |
| N lim - Grease lubrication limit speed | 10000 tr/min |
| Tmin - Min operating temperature | -25 °C |
| Tmax - Max operating temperature | 120 °C |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 36,5 mm |
| Da max - Max shoulder diameter OR | 65,5 mm |
| ra max - Max shaft & housing fillet radius | 1 mm |
| rNa max - Max fillet radius on segment side | 0,5 mm |
| Ca min - Mini segment position | 4,67 mm |
| Ca max - Max segment position | 4,98 mm |
| Db min - Min stop ring position diameter | 80 mm |
