| Items |
 H-E30203J Tapered Roller Bearings |
H-E30303J Tapered Roller Bearings |
H-E30204J Tapered Roller Bearings |
H-E30304J Tapered Roller Bearings |
H-E32004J Tapered Roller Bearings |
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| Brand | Nachi America, Inc. | |||||||||
| Bore Type | Cylindrical Bore | |||||||||
| Configuration | Single Row | |||||||||
| Enclosure | Open | |||||||||
| Bore Size | 17 mm | 17 mm | 20 mm | 20 mm | 20 mm | |||||
| Outside Diameter | 40 mm | 47 mm | 47 mm | 52 mm | 42 mm | |||||
| Width | 13.3 mm | 15.3 mm | 15.3 mm | 16.3 mm | 15 mm | |||||
| Fillet Radius/Chamfer | 1 mm | 1 mm | 1 mm | 1.5 mm | 0.6 mm | |||||
| Dynamic Load Rating | 20,800 N | 27,400 N | 27,000 N | 36,400 N | 27,300 N | |||||
| Static Load Rating | 20,700 N | 24,500 N | 27,200 N | 35,200 N | 31,500 N | |||||
| Limiting Speed - Grease | 10,000 rpm | 9,200 rpm | 8,700 rpm | 8,300 rpm | 9,300 rpm | |||||
| Limiting Speed - Oil | 14,000 rpm | 12,000 rpm | 12,000 rpm | 11,000 rpm | 13,000 rpm | |||||
| Weight | 0.081 kg | 0.133 kg | 0.127 kg | 0.179 kg | 0.102 kg | |||||
| B | 12 mm | 14 mm | 14 mm | 16 mm | 15 mm | |||||
| C | 11 mm | 12 mm | 12 mm | 13 mm | 12 mm | |||||
| r1 | 1 mm | 1 mm | 1 mm | 1.5 mm | 0.6 mm | |||||
| a | ||||||||||
| da (min) | 22.5 mm | 22.5 mm | 25.5 mm | 28.5 mm | 24.5 mm | |||||
| db (max) | 23 mm | 25 mm | 27 mm | 28 mm | 25 mm | |||||
| Da (min) | 33 mm | 40 mm | 39 mm | 44 mm | 35 mm | |||||
| Db (min) | 37 mm | 42 mm | 44 mm | 47 mm | 39 mm | |||||
| S1 (min) | 2 mm | 2 mm | 2 mm | 2 mm | 3 mm | |||||
| S2 (min) | 2 mm | 3 mm | 3 mm | 3 mm | 3 mm | |||||
| Cone ra (max) | 1 mm | 1 mm | 1 mm | 1.5 mm | 0.6 mm | |||||
| Cup ra (max) | 1 mm | 1 mm | 1 mm | 1.5 mm | 0.6 mm | |||||
| Load Center | 3.2 mm | 4.3 mm | 3.5 mm | 3 mm | 4.5 mm | |||||
| Constant e | 0.35 | 0.29 | 0.35 | 0.30 | 0.37 | |||||
| Axial Load Factor Y0 | 0.96 | 1.16 | 0.95 | 1.10 | 0.88 | |||||
| Axial Load Factor Y1 | 1.74 | 2.11 | 1.74 | 2.00 | 1.60 | |||||
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