Product Details

NNU304 NTN Tapered Roller Bearing

Brand Name NTN
Model Number NNU304
Min.Order Quantity 1 pcs
Price Negotiable

Product Features

 

4R3431 NTN Cylindrical Roller Bearingdb min.:338 mm; d1:300 mm; d3:400 mm; r1,2 min.:5 mm; Fatigue load limit Pu:440 kN; Mass bearing + sleeve:192 kg; Limiting speed:260 r/min; D:540 mm; Basic static load rating C0:6100 kN; Calculation factor Y0:2.2; B5:56 mm; Basic dynamic load rating C:3929 kN; D1 ≈:483 mm; d2 ≈:361 mm; B1:226 mm; B2:42 mm; Da max.:520 mm; Calculation factor e:0.3; b:22.3 mm; da max.:361 mm;
NNU49/560K NTN Cylindrical Roller BearingMax. speed for PosiTrac Plus seal:2350 r/min; S:4.763 mm; Housing:SAF 615; A2:149.225 mm; Stabilizing ring:SR-18-15; R2:27.94 mm; N1:22.225 mm; J max.:295.275 mm; End plug (suffix Y):EPR 7; P150°:40.5 kN; Ca:64.795 mm; L:349.25 mm; Cap bolt, SAE grade:8; R1:60.325 mm; h:40.481 mm; PosiTrac Plus contact element:2 x B10724-37; RG:3/8 NPT; P120°:45.4 kN; P90°:72.5 kN; J min.:263.525 mm;
4R4807 NTN Cylindrical Roller BearingCap bolt:4 x 7/8-9 UNC; Cap bolt recommended tightening torque:271.2 N·m; Cap bolt, SAE grade:5; J max.:635 mm; J min.:571.5 mm; L:749.3 mm; Eye bolt:2 x 1/2-13 UNC; H2:85.725 mm; Da:359.999 mm; R2:42.862 mm; P150°:120 kN; Labyrinth ring:2 x LOR 550; R1:122.237 mm; A2:285.75 mm; H1:209.55 mm; Pa:66.7 kN; P90°:218 kN; PG:1/4 NPT; PosiTrac Plus contact element:2 x B10724-552; RG:1 NPT;
NN3934K NTN Cylindrical Roller BearingJ6:98.5 mm; Recommended tightening torque for grub screw:4 N·m; DN:6.5 mm; J7:12.5 mm; A5:22.5 mm; RG:1/4-28 UNF; d:30.163 mm; L:83 mm; SWN:7 mm; s1:22.2 mm; Mass bearing unit:0.86 kg; A3:3.2 mm; Db2:83 mm; R1:21 mm; Housing material:Cast iron; H:141.5 mm; Thread grub screw G2:1/4-28 UNF; Recommended diameter for attachment bolts, mm G:10 mm; Rα:45 °; Basic dynamic load rating C:19.5 kN;
NN3072Rα:45 °; Limiting speed:2800 r/min; Mass bearing unit:1.8 kg; L:101.6 mm; A5:31.5 mm; Basic dynamic load rating C:26 kN; Recommended tightening torque for grub screw:6.5 N·m; RG:1/4-28 UNF; Recommended diameter for attachment bolts, inch G:0.5 in; Basic static load rating C0:19 kN; d:38.1 mm; Db1:96.5 mm; J:143.7 mm; s1:30.2 mm; Hexagonal key size for grub screw N:3.969 mm; Housing:FYTWR 508 Y;
NNU4920KPermissible sliding velocity v max.:0.5 m/s; α:124 °; a:10 mm; h:212.5 mm; B:200 mm; d:210 mm; Specific dynamic load factor K:25 N/mm²; Coefficient of friction µ min.:0.08; Mass bushing:12.2 kg; Tolerance shaft:e7; Permissible sliding velocity v min.:0 m/s; Tolerance housing:H7; D:230 mm; Specific static load factor K0:45 N/mm²; Coefficient of friction µ max.:0.15;
NN3038 NTN Tapered Roller BearingP180°:30.7 kN; J min.:215.9 mm; PosiTrac Plus contact element (db shaft position):B10724-79; J max.:247.65 mm; PG:1/8 NPT; S:3.175 mm; H1:82.55 mm; da:75 mm; P90°:45.4 kN; Ca:37.008 mm; dc:71.438 mm; Cap bolt recommended tightening torque:149.1 N·m; Mass pillow block:14.1 kg; P150°:25.4 kN; ba:32.544 mm; Max. speed for PosiTrac Plus seal:1450 r/min; Labyrinth ring (db shaft position):LOR 79;
NN3944 NTN Tapered Roller BearingA6:26.988 mm; L:193.675 mm; B:92.075 mm; J:152.4 mm; Basic dynamic load rating C:158 kN; S:0.794 mm; A1:98.425 mm; a:6.35 mm; A:69.85 mm; s:31.75 mm; N1:20.637 mm; Attachment bolt diameter G:19.05 mm; Mass bearing unit:12.8 kg; da:69.85 mm; A5:38.1 mm; Limiting speed:2800 r/min; d2:111.125 mm;
4R4054 NTN Cylindrical Roller BearingD:125 mm; B:50 mm; d:105 mm; a:2.5 mm; Specific dynamic load factor K:25 N/mm²; D1:135 mm; Permissible sliding velocity v max.:0.5 m/s; h:106.5 mm; α:124 °; Mass bushing:1.6 kg; Coefficient of friction µ min.:0.08; Tolerance shaft:e7; Specific static load factor K0:45 N/mm²; Permissible sliding velocity v min.:0 m/s; Tolerance housing:H7; Coefficient of friction µ max.:0.15;
NN38/56 NTN Tapered Roller BearingD1 ≈:1053 mm; Mass bearing:525 kg; Limiting speed:480 r/min; ra max.:5 mm; d2 ≈:940 mm; D:1120 mm; r1,2 min.:6 mm; Reference speed:360 r/min; B:200 mm; Basic static load rating C0:16300 kN; d:850 mm; Operating clearance factor k2:0.098; Misalignment factor k1:0.135; Fatigue load limit Pu:960 kN; Ca min.:2.9 mm; Da max.:1097 mm; Da min.:1025 mm; Basic dynamic load rating C:7350 kN; s1 max.:35.9 mm;
NNU3164 NTN Tapered Roller BearingCalculation factor Y0:1.8; Mass bearing:250 kg; d:320 mm; Calculation factor Y2:2.9; Fatigue load limit Pu:475 kN; Limiting speed:1400 r/min; r1,2 min.:5 mm; d2 ≈:382 mm; K:12 mm; Da max.:560 mm; b:22.3 mm; Basic static load rating C0:6700 kN; Reference speed:700 r/min; B:208 mm; D:580 mm; D1 ≈:493 mm; da min.:340 mm; Basic dynamic load rating C:4607 kN; Calculation factor e:0.35; Calculation factor Y1:1.9;
NN3024 NTN Tapered Roller Bearingrb max.:1 mm; Da max.:70.5 mm; Mass plain bearing:0.6 kg; d1 ≈:57 mm; b1:4.6 mm; C:28 mm; D:75 mm; Specific dynamic load factor K:100 N/mm²; Sealing solution:Triple-lip seals; B:43 mm; Material constant KM:330; Specific static load factor K0:500 N/mm²; d:50 mm; da max.:57 mm; Lubricant:Regular relubricatio; b:4.6 mm; α:4 °; Basic static load rating C0:780 kN; Design (sliding contact surface combination):Steel/steel, heavy-d;
NN4936 NTN Tapered Roller BearingB4:32.537 mm; G:189.789 mm; Threads per inch:8; B:28.829 mm; Hydraulic nut:HMVC 38E; d:190 mm; d3 max.:240.64 mm; B1:171.399 mm; Mass adapter sleeve assembly:12.5 kg; Sleeve:S 138x6.15/16; d1:176.213 mm;
NNU494 NTN Tapered Roller BearingA6:19.05 mm; A:57.15 mm; A1:75.406 mm; a:2.381 mm; B:73.025 mm; Limiting speed:4100 r/min; J:111.125 mm; N1:14.287 mm; da:50.8 mm; Attachment bolt diameter G:12.7 mm; Basic dynamic load rating C:84.5 kN; A5:27.781 mm; S:0.794 mm; L:139.7 mm; Mass bearing unit:4.99 kg; d2:73.819 mm; s:25.4 mm;
NNU4952KCap bolt, size:M 30x220; Locating ring:6 x FRB 10/480; P120°:2200 kN; J6:770 mm; N1:42 mm; Pa:1500 kN; P150°:1900 kN; Mass housing:301 kg; Q120°:2860 kN; da:303.212 mm; s:22 mm; Adapter sleeve:H 3064/11.15/16; Oil level, min.:82 mm; Oil level, max.:96 mm; P90°:2900 kN; A1:310 mm; A:345 mm; Q180°:1430 kN; H1:300 mm; Oil seal:2 x TSD 3064/11.15/1;
4R3425 NTN Cylindrical Roller BearingBasic dynamic load rating C:18.3 kN; Reference speed:19000 r/min; Fatigue load limit Pu:3.2 kN; Ew:26 mm; Mass needle roller and cage assembly:0.016 kg; Basic static load rating C0:26 kN; U:17 mm; Fw:20 mm; Limiting speed:22000 r/min;

 

 

No.BrandUEwbLNKC
4R3628NTN - - - - 387.35 mm - - -
NNU494NTN - - - - 139.7 mm - - -
NNU4996KNTN - - - 10.5 mm - - - 66.675 mm
NNU4956NTN - - - - - - - -
NN3024KNTN - - - - - - - -
NN3072NTN - - - - 101.6 mm - - -
NN4921KNTN - - - - - - - -
4R4413NTN - mm - 12 mm - - - -
NNU49/5NTN - - - - - - - -
NN3044NTN - - - - - - - -
4R3225NTN - - - - 147.625 mm - - -
NN30/5NTN - - - - - - - -
4R3031NTN - - - - - - - -
4R2035NTN - - - - 279.4 mm - - -
NN3972NTN - - 50 mm - - - - -
4R4206NTN - - - - - - - -
NNU4922KNTN - - - - - - - -
NNU4936KNTN - - - - - - - -
NN4928NTN - 40 mm - - - - - -
NNU4952NTN - - - - - - - -
4R4807NTN - - - - 749.3 mm - - -
NN3022KNTN - - - - - - - -
NN3064NTN - - - - - - - -
NN4968KNTN - - - - - - - -
NN4944NTN - - - - - - - -
4R4444NTN - - - - - - - -
NN3056KNTN - - - - - - - -

 

NNU304 NTN Tapered Roller Bearing Video

 

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