| B | 20 mm |
| Permissible sliding velocity v min. | 0 m/s |
| Coefficient of friction µ max. | 0.15 |
| Tolerance housing | H7 m/s |
| d | 20 mm |
| Tolerance shaft | f7 m/s |
| Permissible sliding velocity v max. | 1 m/s |
| Mass bushing | 0.017 kg |
| Specific dynamic load factor K | 40 N/mm² |
| Specific static load factor K0 | 120 N/mm² |
| Coefficient of friction µ min. | 0.08 |
| D | 23 mm |
NCF3020V NSK Full row of cylindrical roller bearings cross reference chart | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| No. | Brand | d | D | r | R | C | T | B | db |
| 20NQ3020 | KOYO | 20 | 30 mm | - | - | 19.8 kN | - | - | - |
| YT 223020 | IKO | 22 | 30 mm | - | - | 28,2 kN | - | - | - |
| 25R3020-1 | KOYO | 25 | 30 | - | - | 19 kN | - | 20 mm | - |
| 25VPU3020B | KOYO | 25 | 30 | - | - | 16,6 kN | - | 20 mm | - |
| XAA30205/Y30205 | Timken | 25 mm | 52 mm | 1 mm | 4,1 mm | 13 mm | 16,25 mm | 15 mm | 37,5 mm |
| XAA30205/YAA30205 | Timken | 25 mm | 52 mm | 1,5 mm | 4,1 mm | 13 mm | 16,25 mm | 15 mm | 37,5 mm |
| X33020/Y33020 | Timken | 100 mm | 150 mm | 1,5 mm | 2 mm | 32,5 mm | 39 mm | 39 mm | 111 mm |
| X30203/Y30203 | Timken | 17 mm | 40 mm | 1 mm | 1 mm | 11 mm | 13,25 mm | 12 mm | 22 mm |
| X30204/Y30204 | Timken | 20 mm | 47 mm | 1 mm | 1 mm | 12 mm | 15,25 mm | 14 mm | 25,5 mm |
| X30204/Y30204Z | Timken | 20 mm | 47 mm | 1 mm | 1 mm | 12 mm | 15,25 mm | 14 mm | - |
| X30204M/Y30204M | Timken | 20 mm | 47 mm | 1 mm | 1 mm | 12 mm | 15,25 mm | 14 mm | 27,5 mm |
| NNU4168K3 NSK Double row cylindrical roller bearings | Mass bearing unit:0.35 kg; Fatigue load limit Pu:0.335 kN; Basic static load rating C0:7.8 kN; H2:16 mm; s1:26.9 mm; A5:18 mm; J min.:100 mm; Housing material:Composite; B1:44.4 mm; Limiting speed:1500 r/min; Thread grub screw G2:M6x0.75; H1:36.5 mm; A1:22 mm; d:25 mm; Recommended diameter for attac |
| NNU4156 TIMKEN Double row cylindrical roller bearings | ra max.:2.5 mm; Calculation factor Y1:1.5; T:102 mm; Calculation factor e:0.46; r5 min.:1 mm; Basic dynamic load rating C:1069 kN; r3,4 min.:2.5 mm; Calculation factor Y0:1.4; Mass bearing pair:22.6 kg; Fatigue load limit Pu:193 kN; b:12 mm; D:320 mm; Calculation factor Y2:2.2; K:7.5 mm; Limiting sp |
| NN4922K NSK Double row cylindrical roller bearings | Basic Radial Load Rating-Dynamic DC:1990 lbf; Total Length A:1.938 in; MRC Bearing Number (MRC) :S1938; Span B:1.547 in; Dimension C:0.9380 in; MRC Bearing Number (MRC):CONV-504-3; Variant:CONV-504-3; Basic Radial Load Rating-Static SCO:1270 lbf; |
| NN494 TIMKEN Double row cylindrical roller bearings | d:25.000 mm; B:63.50 mm; Lateral Eccentricity Max LE:0.003 mm; D:62.0000 mm; Basic Static Radial Load Rating Co:26500 N; Set:Quadruplex Set DFDT; Fillet Radius ra:0.80 mm; Basic Dynamic Radial Load Rating C:22500 N; |
| NNU4888 NSK Double row cylindrical roller bearings | Grease Speed Rating n1:2600 rpm; Basic Dynamic Radial Load Rating C:176000 N; B:38.00 mm; d:150.000 mm; Basic Static Radial Load Rating Co:200000 N; Fillet Radius rb:1.00 mm; Fillet Radius ra:2.00 mm; D:235.0000 mm; Oil Speed Rating n2:3200 rpm; |
| NNU40/710K TIMKEN Double row cylindrical roller bearings | Da:130 mm; J max.:244.475 mm; H1:82.55 mm; P60°:54.7 kN; PG:1/8 NPT; RG:1/4 NPT; Appropriate attachment bolt size G:0.5 in; Labyrinth ring (dc shaft position):LOR 46; L:285.75 mm; P120°:20 kN; Cap bolt recommended tightening torque:81.3 N·m; da:75 mm; A2:118.666 mm; dc:71.438 mm; Ca:3 |
| NN49/1000K NSK Double row cylindrical roller bearings | T:82 mm; rc max.:1 mm; r5 min.:1 mm; d1 ≈:98.75 mm; a:65.464 mm; Db min.:130 mm; Calculation factor Y2:2.9; r1,2 min.:3 mm; Calculation factor e:0.35; Calculation factor Y0:1.8; d:65 mm; Cb min.:8 mm; Fatigue load limit Pu:55 kN; Basic static load rating C0:455 kN; K:2 mm; Mass bearing pair:5. |
| NN3048K NSK Double row cylindrical roller bearings | Keyway f:1.6 mm; Preload:50 lb; Grease Speed Rating Max. n1:5000 rpm; B:25.40 mm; d:20.640 mm; Keyway e:21.4 mm; Fillet Radius ra:1.00 mm; Oil Speed Rating Max. n2:8000 rpm; D:50.8000 mm; X-L-O Part Number:55-27; Oil Mist Speed Rating Max. n3:12000 rpm; |
| NN4964K TIMKEN Double row cylindrical roller bearings | dk:60 mm; d2 max.:104 mm; Basic static load rating C0:200 kN; Material constant KM:330; l7 min.:50 mm; h:163 mm; α:7 °; l1 min.:92 mm; r1 min.:0.6 mm; d:45 mm; Specific dynamic load factor K:100 N/mm²; B:32 mm; Basic dynamic load rating C:127 kN; l2 max.:217 mm; Mass rod end:2.45 kg; C1 max |
| NNU4936 TIMKEN Double row cylindrical roller bearings | r3,4 min.:0.6 mm; Static moment stiffness:970 N·m/mrad; Preload:3930 N; a:137 mm; Da max.:82 mm; r1,2 min.:0.3 mm; ra max.:0.3 mm; d:50 mm; Angle between holes in outer ring (Pitch) α:30 °; D2:81.3 mm; H1:25 mm; Number of attachment bolts:11; Basic static load rating C0:146 kN; Attainable |
| NNU40/900K TIMKEN Double row cylindrical roller bearings | Basic Dynamic Radial Load Rating C:24700 N; Basic Static Radial Load Rating Co:19000 N; Height H:171.5 mm; Dimension L:101.6 mm; Distance J:143.7 mm; Dimension A2:14.3 mm; Insert Bearing IB:Stainless Steel; Height T:53.0 mm; Dimension A1:38.9 mm; Diameter N:14.3 mm; Shaft Diameter D:40 mm; |
| NNU412 TIMKEN Double row cylindrical roller bearings | Calculation factor e:0.31; Comparative radial load rating CF:1530 kN; d:420 mm; r3,4 min.:6 mm; Fatigue load limit Pu:1220 kN; D1 ≈:508 mm; T:437 mm; Thrust factor K:1.88; Calculation factor Y1:2.2; B:437 mm; Calculation factor Y2:3.3; Comparative axial load rating CFa:234 kN; Basic static loa |
| NNU4964K NSK Double row cylindrical roller bearings | Attachment bolt diameter G:12.7 mm; B:73.025 mm; da:42.862 mm; H2:31.75 mm; J max.:161.925 mm; S:0.794 mm; H:107.95 mm; s:25.4 mm; A1:78.581 mm; Basic dynamic load rating C:77 kN; L:200.025 mm; J min.:155.575 mm; A:60.325 mm; d2:68.659 mm; Mass bearing unit:4.22 kg; H1:53.975 mm; Limiting speed:4500 |
| NNU4084K NSK Double row cylindrical roller bearings | r2 max.:1 mm; Mass needle roller:6.13 g; r1,2 min.:0.3 mm; Dw:5 mm; Lw:39.8 mm; r1 max.:0.8 mm; |
| NN4968 NSK Double row cylindrical roller bearings | Calculation factor (back-to-back, face-to-face) Y2:1.41; Calculation factor fHC:1; Calculation factor f2A:1; da max.:107.6 mm; Basic static load rating C0:30 kN; db max.:104.8 mm; Calculation factor (single, tandem) Y2:0.87; Calculation factor e:0.68; a:39 mm; B:24 mm; r3,4 min.:1 mm; Static axial s |
| NN3934K TIMKEN Double row cylindrical roller bearings | r1s (min):4 mm; Static (Coa):962 kN; D:400 mm; E:mm; B:65 mm; Dynamic (Ca):643 kN; d2 (max):mm; d2:260 mm; Pu:82.000 kN; b1:mm; F:296 mm; b:mm; s:2 mm; rs (min):4 mm; |
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