20 mm x 52 mm x 15 mm 20 mm x 52 mm x 15 mm NACHI 7304B angular contact ball bearingsCross reference
| Structure | Deep Groove | Type | Ball | Applicable Industries | Hotels, Manufacturing Plant, Farms, Retail, Printing Shops, Construction works |
| Bore Size | 75 mm | Precision Rating | P6,P5,P4,P2,P1,P0 | Seals Type | Open, ZZ/ZRS.RZ/RS. Open |
| Number of Row | Single Row | Place of Origin | Anhui, China | Name | deep groove ball bearing |
| Clearance | C0,C2,C3,C4,C5 is available | Sealed Cap | Rubber or Metal | Material | Gcr15 |
| MOQ | 1 pcs | Payment Terms | 30% T/T in advance,70%balance has to be paid before shippment | Vibration Level code | V1,V2.V3 |
| OEM | Accept | Sample | Acceptable |
| Calculation factor Y1 | 1.9 |
| Basic dynamic load rating C | 3425 kN |
| d2 ≈ | 332 mm |
| Fatigue load limit Pu | 365 kN |
| Calculation factor Y2 | 2.9 |
| K | 12 mm |
| b | 22.3 mm |
| Limiting speed | 1700 r/min |
| da min. | 300 mm |
| Calculation factor Y0 | 1.8 |
20 mm x 52 mm x 15 mm NACHI 7304B angular contact ball bearings Specifications
D:260 mm; Grease:966 kN; Oil:92.370 kN; d:190 mm; with cylindrical bore:1 700 min-1; Dynamic (Cr):3 mm; Static (Cor):5.5 mm; with tapered bore:2 200 min-1; Pu:520 kN; B:52 mm;
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Dimension F:11.1 mm; Dimension B:110.3 mm; Distance J:38.1 mm; Shaft Diameter D:20 mm; Dimension S1:18.3 mm; Pin Dia BS:3/8; Width A:23.8 mm; Dimension C:42.9 mm; Dimension N:8.7 mm; Basic Static Radial Load Rating Co:6550 N;
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P90°:36.9 kN; Bearing:1217; J1:53.975 mm; P180°:25.4 kN; P150°:20.9 kN; db:100.013 mm; dc:80.963 mm; Ca:45.796 mm; Cap bolt recommended tightening torque:149.1 N·m; J min.:250.825 mm;
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Accessories:Mast Guide Type- 307; Basic Interchange:-; Basic Interchange NDH:-; Basic Interchange NSK:-; Basic Interchange MCGILL:-; Basic Interchange BCA:-; Basic Radial Load Rating-Dynamic DC:13600 lbf; Basic Radial Load Rating-Static SCO:48600 lbf; Basic Interchange SPLIT:-;
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d3:210 mm; Basic dynamic load rating C:880 kN; Da min.:239 mm; B:74 mm; Limiting speed:2600 r/min; Ba min.:9 mm; D:280 mm; B1:109 mm; Ca min.:2 mm; D1 ≈:251 mm;
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Grease Speed Rating n1:2400 rpm; B:76.00 mm; D:200.0000 mm; Oil Speed Rating n2:2900 rpm; Fillet Radius ra:2.00 mm; Basic Static Radial Load Rating Co:340000 N; Basic Dynamic Radial Load Rating C:296000 N; d:110.000 mm; Fillet Radius rb:1.00 mm;
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Adapter sleeve assembly:SNW 15x2.7/16; J max.:244.475 mm; Appropriate attachment bolt size G:0.625 in; R2:21.431 mm; H2:30.163 mm; Initial grease fill:68.04 g; Cap bolt:2 x 1/2-13 UNC; S:3.175 mm; PG:1/8 NPT; Da:130 mm;
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Calculation factor Y0:1.6; Reference speed:2800 r/min; Basic static load rating C0:570 kN; r5 min.:0.6 mm; K:4.5 mm; Basic dynamic load rating C:451 kN; T:77 mm; Calculation factor Y1:1.6; Mass bearing pair:5.4 kg; Ca min.:5 mm;
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Mass bearing:1496 kg; D:920 mm; K:12 mm; Basic dynamic load rating C:18300 kN; d:650 mm; Basic static load rating C0:46500 kN; Fatigue load limit Pu:3200 kN; Design variant/feature:BC4.10/W33WI; r3,4 min.:4 mm; Calculation factor kr:670;
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Basic Static Radial Load Rating Co:146000 N; Grease Speed Rating n1:3900 rpm; B:62.00 mm; D:130.0000 mm; Fillet Radius ra:2.00 mm; Oil Speed Rating n2:5100 rpm; Fillet Radius rb:1.00 mm; d:50.000 mm; Basic Dynamic Radial Load Rating C:156000 N;
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Da min.:123 mm; d1:75 mm; s1 max.:7.1 mm; Mass bearing + sleeve:3.7 kg; Operating clearance factor k2:0.105; Basic static load rating C0:320 kN; Limiting speed:5600 r/min; B2:19 mm; d2 ≈:103 mm; Reference speed:4000 r/min;
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B:65 mm; Static (Cor):284.000 kN; D:320 mm; Weight:22 kg; Grease:2 100 min-1; Oil:2 400 min-1; Da:303 max; rs:4 mm; da:167 min; ra:3 max;
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Fillet Radius ra:2.00 mm; Basic Static Radial Load Rating Co:83000 N; Basic Dynamic Radial Load Rating C:95600 N; Grease Speed Rating n1:3600 rpm; Fillet Radius rb:1.00 mm; Oil Speed Rating n2:4800 rpm; B:28.00 mm; D:150.0000 mm; d:85.000 mm;
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da:100.013 mm; H1:107.95 mm; J1:57.15 mm; d2:152.4 mm; H:217.488 mm; H2:61.913 mm; s:41.275 mm; A:114.3 mm; Mass bearing unit:22.5 kg; Limiting speed:2200 r/min;
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Appropriate attachment bolt, rec. tightening torque:665 N·m; P90°:1300 kN; Oil seal:TSD 3138/6.15/16 U; Pa:710 kN; da:176.213 mm; Locating ring:2 x FRB 10/320; P150°:880 kN; P55°:2700 kN; Adapter sleeve:HA 3138; A:255 mm;
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| interchange 20 mm x 52 mm x 15 mm NACHI 7304B angular contact ball bearings guide |
| d | a | D | C | B | r1 | C0 | f0 |
| 7304B | 20 mm | 7.6 mm | 52 mm | 17,8 kN | 15 mm | 0.6 mm | 9,9 kN | - |
| 7304B | 20 mm | - | 52 mm | 17,3 kN | 15 mm | - | 9,65 kN | - |
| 7304B | 20,000 mm | - | 52,000 mm | 15,000 mm | 15,000 mm | - | - | - |
| 7304B | 20 mm | - | 52 mm | 19,3 kN | 15 mm | - | 9,9 kN | - |
| 7304B | 20 mm | 22.6 mm | 52 mm | 15 mm | 15 mm | - | - | - |
| 7304B | 20 mm | - | 52 mm | 19000 kN | 15 mm | - | 10400 kN | - |
| 7304B | 20 mm | 21.6 mm | 52 mm | 28,2 kN | 15 mm | - | 19,3 kN | - |
| 7304B | 20 mm | 22,5 mm | 52 mm | 17,3 kN | 15 mm | - | 9,65 kN | - |
| 7304B | - | - | - | - | - | - | - | - |
| 7304B | 20 | - | 52 | - | 15 | - | - | - |
English
ISO 7318 ADB angular contact ball bearings