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NNU4972K NTN Cylindrical Roller Bearing

Name: NNU4972K NTN Cylindrical Roller Bearing
Brand: NTN
SKU: NNU4972K
Rating: 4.9 (5 reviews)

NTN NNU4972K Bearing SPECIFICATIONS

What is NNU4972K NTN Cylindrical Roller Bearing in mechanical engineering? Thrust Spherical Roller Bearing Manufacturing Service . Upload NACHI BEARINGS OF AMERICA CORP. your CAD file for an 7/8-9 UNC Cap bolt instant.
Brand Name:NTN
Model Number:
NNU4972K
Cap bolt:7/8-9 UNC
PG:1/4 NPT
RG:3/4 NPT
Initial grease fill:481.95 g
Housing:SSAFS 034 KA
Cap bolt, SAE grade:8
Labyrinth ring:2 x LOR 141
H1:152.4 mm

Download NTN NNU4972K Spec Sheet

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Thrust Spherical Roller Bearing Specification details

Cap bolt:7/8-9 UNC
PG:1/4 NPT
RG:3/4 NPT
Initial grease fill:481.95 g
Housing:SSAFS 034 KA
Cap bolt, SAE grade:8
Labyrinth ring:2 x LOR 141
H1:152.4 mm
P90°:180 kN
h:44.45 mm
Stabilizing ring:2 x SR-0-24
da:152.4 mm
R1:87.313 mm
P120°:116 kN
End plug (suffix Y):EPR 18
A1:149.225 mm
PosiTrac Plus contact element:2 x B10724-140
ba:64.294 mm
L:511.175 mm
H:298.45 mm

NNU4972K NTN Cylindrical Roller Bearing pdf

NTN NNU4972K NNU4972K NTN Cylindrical Roller Bearing Product Features

NN3032 NTN Tapered Roller Bearing	J1:95.25 mm; Cap bolt recommended tightening torque:359.3 N·m; Ca:105.816 mm; N1:28.575 mm; H1:160.35 mm; P90°:138 kN; P60°:230 kN; P180°:96.1 kN; ba:77.787 mm; A2:279.4 mm; L:539.75 mm; h:50.8 mm; Stabilizing ring:SR-30-0; S:4.763 mm; P120°:87.2 kN; RG:3/8 NPT; J max.:463.55 mm; Mass pillow block:92.5 kg; Housing:SAW 530; R2:39.688 mm;
NNU306 NTN Tapered Roller Bearing	D:1250 mm; Dynamic (Cr):6400 kN; Weight:987 ; Pu:1187.950 kg; d:950 mm; Bearing designation:PLC 512-28 ; Static (Cor):20000 ; B1:220 mm; B:300 mm;
4R3228 NTN Cylindrical Roller Bearing	RG:3/8 NPT; h:42.069 mm; Stabilizing ring:2 x SR-1520; P120°:44.5 kN; End plug (suffix Y):EPR 12; Housing:FSAF 520; Ca:55.804 mm; Da:180 mm; Appropriate attachment bolt size G:0.75 in; J1:60.325 mm; P180°:48.9 kN; Pa:10.2 kN; Labyrinth ring:2 x LOR 101; R1:58.737 mm; H:217.488 mm; P60°:119 kN; P150°:40 kN; L:387.35 mm; Cap bolt recommended tightening torque:203.4 N·m; J min.:295.275 mm;
NNU4996K NTN Cylindrical Roller Bearing	da min.:92.7 mm; C:66.675 mm; b:10.5 mm; α:9 °; Lubricant:Maintenance free &nd; Specific dynamic load factor K:150 N/mm²; d:82.55 mm; M:6.5 mm; B:82.931 mm; Sealing solution:Triple-lip seals; da max.:97.5 mm; r1 min.:2 mm; Da min.:122.8 mm; Specific static load factor K0:300 N/mm²; Mass plain bearing:5.6 kg; r2 min.:1 mm; Material constant KM:330; Da max.:133.8 mm; Design (sliding contact surface combination):Steel/steel;
4R3036 NTN Cylindrical Roller Bearing	P150°:1300 kN; Oil level, min.:62 mm; Oil level, max.:71 mm; Q120°:1800 kN; H2:90 mm; Mass housing:138 kg; Pa:1000 kN; A1:240 mm; J6:590 mm; J1:140 mm; P180°:1600 kN; N4 max.:20 mm; N:42 mm; Bearing (basic designation):23144 K; P120°:1400 kN; Da:370 mm; Eye bolt, size:2 x M 20; A2:280 mm; Ca:140 mm; L:640 mm;
NNU4972 NTN Tapered Roller Bearing	Da:63.5 mm; Db:65 mm; Housing material:Composite; Hexagonal key size for grub screw N:2.5 mm; Basic static load rating C0:7.8 kN; B1:33 mm; d2:41.7 mm; Recommended tightening torque for grub screw:4.2 N·m; A5:18 mm; A1:15 mm; Recommended diameter for attachment bolts, mm G:10 mm; A3:3.2 mm; Mass bearing unit:0.29 kg; N:12.3 mm; s1:21 mm; Fatigue load limit Pu:0.335 kN; Basic dynamic load rating C:14 kN;
4R4425 NTN Cylindrical Roller Bearing	r1,2 min.:1.5 mm; Calculation factor f2D:1.08; Calculation factor (single, tandem) Y2:0.87; da max.:104.8 mm; Basic static load rating C0:72 kN; B:24 mm; Db max.:136 mm; D2:128.25 mm; Preload class D GD:3680 N; Basic dynamic load rating C:74.1 kN; d1:105.4 mm; Static axial stiffness, preload class D:575 N/µm; Calculation factor (back-to-back, face-to-face) Y2:1.41; Preload class B GB:920 N; Mass bearing:1.17 kg;
4R304 NTN Cylindrical Roller Bearing	Calculation factor kr:0.035; Fatigue load limit Pu:0.011 kN; r1,2 min.:0.2 mm; Basic dynamic load rating C:0.741 kN; d:3 mm; Da max.:11.5 mm; Basic static load rating C0:0.25 kN; D2 ≈:11.35 mm; Reference speed:110000 r/min; Calculation factor f0:6.4; Mass bearing:0.0029 kg; B:5 mm; ra max.:0.2 mm; da min.:4.6 mm; D:13 mm; d2 ≈:6 mm; Limiting speed:70000 r/min;
NNU4932 NTN Tapered Roller Bearing	Housing:SAW 532; P90°:136 kN; L:558.8 mm; N1:28.575 mm; J min.:441.325 mm; da:136.525 mm; Cap bolt recommended tightening torque:203.4 N·m; Labyrinth ring:2 x LOR 129; H:336.55 mm; J1:95.25 mm; Stabilizing ring:SR-32-0; Ca:113.817 mm; S:4.763 mm; Initial grease fill:793.8 g; h:52.388 mm; Mass pillow block:109 kg; Cap bolt:4 x 3/4-10 UNC; End plug (suffix Y):EPR 16; P150°:78.3 kN; R2:33.337 mm;
NN4944K NTN Cylindrical Roller Bearing	J max.:279.4 mm; P150°:28.5 kN; P90°:50.7 kN; R2:22.225 mm; PG:1/8 NPT; P60°:84.5 kN; Da:150 mm; Bearing limiting speed:5600 r/min; P180°:34.7 kN; Pa:7.12 kN; End plug (suffix Y):EPR 9; Mass pillow block:17.9 kg; ba:31.75 mm; H2:31.75 mm; N1:22.225 mm; Initial grease fill:218.29 g; Stabilizing ring:2 x SR-1517; Cap bolt, SAE grade:5; Ca:42.799 mm; Labyrinth ring:2 x LOR 52;
NN4922K NTN Cylindrical Roller Bearing	s max.:1.5 mm; das:68.9 mm; Basic dynamic load rating C:198 kN; Basic static load rating C0:300 kN; B:46 mm; Da max.:89 mm; Calculation factor kr:0.5; d1 ≈:71.5 mm; da min.:66 mm; r3,4 min.:0.6 mm; r1,2 min.:1.1 mm; D:95 mm; d:60 mm; ra max.:1 mm; Limiting speed:4000 r/min; Fatigue load limit Pu:36.5 kN; Reference speed:3400 r/min; b1:4.5 mm; D1 ≈:82 mm; rb max.:0.5 mm;
NNU4932K	Housing:SAF 530; Eye bolt:2 x 3/8-16 UNC; Stabilizing ring:SR-30-0; Ca:82.804 mm; P150°:80.1 kN; Cap bolt, SAE grade:5; Initial grease fill:623.7 g; H2:63.5 mm; P120°:87.2 kN; Taconite seal:TER 126; RG:3/4 NPT; H1:160.325 mm; S:4.763 mm; L:539.75 mm; R2:39.688 mm; Mass pillow block:91.6 kg; J min.:431.8 mm; A1:158.75 mm; Da:269.999 mm; Cap bolt:4 x 3/4-10 UNC;
NN3934K NTN Cylindrical Roller Bearing	J6:98.5 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;
4R2904 NTN Cylindrical Roller Bearing	A:30 mm; A1:15 mm; A3:3.2 mm; Hexagonal key size for grub screw N:3 mm; H:124 mm; B:34.1 mm; Recommended diameter for attachment bolts, inch G:0.375 in; Db:65 mm; T:38.8 mm; Recommended diameter for attachment bolts, mm G:10 mm; Fatigue load limit Pu:0.335 kN; J:99 mm; Da:63.5 mm; L:70 mm; Thread grub screw G2:M6x0.75; Housing material:Composite; N:12.3 mm; Mass bearing unit:0.29 kg; Limiting speed:1500 r/min;
NNU4856K NTN Cylindrical Roller Bearing	with cylindrical bore:800 min-1; Grease:3110 kN; rs (min):5 mm; Static (Cor):22.3 mm; Dynamic (Cr):12 mm; with tapered bore:1 000 min-1; D:420 mm; Oil:270.110 kN; d:200 mm; Pu:2230 kN; B:138 mm;
NN3072	Rα: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;

No.	Brand	U	E	w	b	L	N	K	C
NN3934K	NTN	-	-	-	-	83 mm	-	-	-
4R3821	NTN	-	-	-	-	-	-	-	-
NNU4988	NTN	-	-	-	-	-	-	-	-
NN308	NTN	-	-	-	-	-	14.8 mm	-	-
NN3032	NTN	-	-	-	-	539.75 mm	-	-	-
4R4819	NTN	-	-	-	-	-	-	-	-
NN3092K	NTN	-	-	-	-	-	-	-	-
NNU4996	NTN	-	-	-	-	-	-	-	-
NN4921	NTN	-	-	-	-	466.725 mm	-	-	-
4R3428	NTN	-	-	-	-	-	-	-	-
NNU39/63	NTN	-	-	-	-	-	-	-	-
4R4611	NTN	-	-	-	-	-	-	-	-
NNU3184	NTN	-	-	-	-	869.95 mm	-	-	-
NNU4968	NTN	-	-	-	-	-	11.5 mm	-	-
NNU3034	NTN	-	-	-	-	-	-	-	-
NNU4996K	NTN	-	-	-	10.5 mm	-	-	-	66.675 mm
NN3092	NTN	-	-	-	-	-	-	-	-
NN4936	NTN	-	-	-	-	-	-	-	-
NN4922	NTN	-	-	-	-	-	-	-	-
NN4960K	NTN	-	-	-	16 mm	-	-	10 mm	-
4R4426	NTN	-	-	-	-	-	-	-	-
NN314	NTN	-	-	-	-	200.025 mm	-	-	-
NN3056	NTN	-	-	-	-	349.25 mm	-	-	-

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Thrust Spherical Roller Bearing Part series NNU4972K is a potential replacement for these common bearing part numbers:

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