NJ408, NJ408E, NJ408M, NJ408M1 Cylindrical Roller BearingProducts and services
| Design (sliding contact surface combination): |
Steel/steel |
d1 ≈: |
54.991 mm |
Basic dynamic load rating C: |
170 kN |
| Basic static load rating C0: |
510 kN |
D: |
71.438 mm |
M: |
4 mm |
| r2 min.: |
1 mm |
da max.: |
55 mm |
Da min.: |
61.3 mm |
| Specific dynamic load factor K: |
100 N/mm² |
NJ408, NJ408E, NJ408M, NJ408M1 Cylindrical Roller BearingSystems
| Place of Origin | Luoyang,Henan,China | Type | vertical mill grinding roller | Machine Type | vertical mill |
| Certification | ISO | Material | Steel/alloy steel | Processing Type | Casting/forging |
| Use | Mining machinery | Name | casting alloy steel vertical mill grinding roller | Advantage | high resistance to wear |
| Process | casting, rough machining, QT, finish machining | Mould processing | sand casting or lost form mould casting | Heat treatment | quenching and tempering |
| surface treament | according to customer requirments | Usage | Crushing Etc | Standard | ISO9001 |
| Packaging Details | Package adapting to transport |
| d | 20 mm |
| D | 28 mm |
| Specific static load factor K0 | 20 N/mm² |
| Tolerance housing | H7 |
| Coefficient of friction µ min. | 0.05 |
| Tolerance shaft | h8 |
| Coefficient of friction µ max. | 0.1 |
| Mass bushing | 0.04 kg |
| B | 20 mm |
| Permissible sliding velocity v max. | 5 m/s |
How to Identify NJ408, NJ408E, NJ408M, NJ408M1 Cylindrical Roller Bearing by Bearing Number
Mass:1.05 kg; b:8 mm; Recommended tightening torque:14.2 N·m; B:32 mm; G:M 80x2; d5:109 mm; h:3.5 mm; d1:105 mm; Associated spanner (Hook spanner in accordance with DIN 1810):HN 16; d3:110 mm;
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Fillet Radius ra:1.00 mm; Grease Speed Rating n1:5600 rpm; D:80.0000 mm; B:30.20 mm; Basic Static Radial Load Rating Co:49000 N; Sealed Speed Rating n3:5600 rpm; Oil Speed Rating n2:7500 rpm; d:40.000 mm; Basic Dynamic Radial Load Rating C:49500 N; Accessories:Shield & Seal & Snap;
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Da:9.3 mm; Basic dynamic load rating C:2.55 kN; Db:6.3 mm; Reference speed:34000 r/min; D:13 mm; Fatigue load limit Pu:0.25 kN; Basic static load rating C0:2.36 kN; E:9 mm; ra max.:0.3 mm; Fw:6 mm;
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l7 min.:80 mm; l3 min.:80 mm; Mass rod end:10.5 kg; r1 min.:1 mm; dk:92 mm; Material constant KM:330; α:6 °; l5 ≈:40 mm; d4 ≈:92 mm; h1:265 mm;
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with tapered bore:3 000 min-1; B:45 mm; rs (min):2 mm; with cylindrical bore:2 200 min-1; Oil:56.880 kN; Pu:329 kN; Static (Cor):5.5 mm; d:110 mm; D:170 mm; Dynamic (Cr):3 mm;
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Accessories:Two Seals; Grease Speed Rating Open/Shielded n1:3400 rpm; d:80.000 mm; Fillet Radius ra:2.50 mm; Sealed Speed Rating n3:2300 rpm; B:48.00 mm; D:200.0000 mm; Basic Dynamic Radial Load Rating C:163000 N; Oil Speed Rating Open/Shielded n2:4000 rpm; Basic Static Radial Load Rating Co:125000
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B:60 mm; Specific dynamic load factor K:140 N/mm²; Permissible sliding velocity v max.:0.5 m/s; Permissible sliding velocity v min.:0 m/s; Coefficient of friction µ min.:0.03; Coefficient of friction µ max.:0.08; d:85 mm; Tolerance shaft:h8; Tolerance housing:H7; D:95 mm;
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rs (min):1 mm; D:47 mm; Weight:0.17 kg; da:25 min; Bearing designation:3204 ; Grease:9 400 min-1; Da:42 max; Static (Cor):15.000 kN; Pu:0.682 kN; a:31 mm;
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Static (Cor):110.000 kN; Bearing designation:3215 ; d:75 ; Grease:3 200 min-1; rs (min):1.5 mm; Oil:3 800 min-1; d:75 mm; D:130 mm; Pu:4.939 kN; Weight:2.08 kg;
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Db2:60.3 mm; Mass bearing unit:0.47 kg; Db1:55.7 mm; End cover:ECW 204; Thread grub screw G2:1/4-28 UNF; s1:18.3 mm; Rα:45 °; Hexagonal key size for grub screw N:3.175 mm; Basic static load rating C0:6.55 kN; Bearing:YAR 204-012-2RFGR/HV;
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B:86.00 mm; Oil Speed Rating n2:3200 rpm; Fillet Radius ra:2.50 mm; d:90.000 mm; Basic Static Radial Load Rating Co:270000 N; Basic Dynamic Radial Load Rating C:255000 N; Fillet Radius rb:1.00 mm; D:190.0000 mm; Grease Speed Rating n1:2200 rpm;
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B:22.00 mm; Basic Static Radial Load Rating Co:41500 N; Basic Dynamic Radial Load Rating C:50700 N; D:125.0000 mm; d:80.000 mm; Oil Speed Rating Open/Shielded n2:6300 rpm; Sealed Speed Rating n3:3200 rpm; Accessories:Without Accessories; Fillet Radius ra:1.00 mm; Grease Speed Rating Open/Shielded n1
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Basic Dynamic Radial Load Rating C:21200 N; Basic Static Radial Load Rating Co:13700 N; D:62.0000 mm; Fillet Radius ra:1.00 mm; Oil Speed Rating n2:14000 rpm; d:25.000 mm; B:17.00 mm; Grease Speed Rating n1:11000 rpm;
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B1:131 mm; Mass bearing + sleeve:38.2 kg; db min.:191 mm; ra max.:3 mm; D:320 mm; Basic static load rating C0:1560 kN; Calculation factor Y1:2.6; D1 ≈:278 mm; Fatigue load limit Pu:140 kN; B4:29.5 mm;
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G:319.075 mm; B5:51.841 mm; d1:292.1 mm; Hydraulic nut:HMVC 64E; B1:176.174 mm; d3 max.:381.127 mm; Mass adapter sleeve assembly:29.5 kg; d:320 mm; B:42.316 mm; Lock nut:N 064;
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AMERICAN BEARING MFG.CORP.2020-07-10 09:46:19
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