| da max. | 654 mm |
| Mass bearing | 560 kg |
| Ca min. | -11.7 mm |
| s1 max. | 75.3 mm |
| Limiting speed | 750 r/min |
| Misalignment factor k1 | 0.099 |
| Da max. | 798 mm |
| B | 264 mm |
| r1,2 min. | 7.5 mm |
| Da min. | 706 mm |
| d2 ≈ | 605 mm |
| D1 ≈ | 738 mm |
| ra max. | 6 mm |
| Operating clearance factor k2 | 0.116 |
| da min. | 532 mm |
| d | 500 mm |
| Reference speed | 530 r/min |
| Fatigue load limit Pu | 850 kN |
| Basic static load rating C0 | 12700 kN |
| D | 830 mm |
7052 KOYO Single-row, matched pair angular contact ball bearings Interchange Guide | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| No. | Brand | D | a | B | d | C | B1 | C0 | Size |
| 7052 | NTN | 400,000 mm | - | 65,000 mm | 260,000 mm | 65,000 mm | - | - | 260x400x65 |
| 7052 A | Loyal | 400 mm | 128,4 mm | 65 mm | 260 mm | 325 kN | - | 478 kN | 260x400x65 |
| 7052 A-UD | Loyal | 400 mm | - | - | 260 mm | 529 kN | 130 mm | 956 kN | 260x400x130 |
| 7052 A-UO | Loyal | 400 mm | 256,7 mm | - | 260 mm | 529 kN | 130 mm | 956 kN | 260x400x130 |
| 7052 A-UX | Loyal | 400 mm | 126,7 mm | - | 260 mm | 529 kN | 130 mm | 956 kN | 260x400x130 |
| 7052 ACD/P4A | SKF | 400 mm | 109.8 mm | 65 mm | 260 mm | - | - | - | 400x260x65 |
| 7052 ADB | ISO | 400 mm | 256,7 mm | - | 260 mm | - | 130 mm | - | 260x400x130 |
| 7052 ADF | ISO | 400 mm | 126,7 mm | - | 260 mm | - | 130 mm | - | 260x400x130 |
| 7052 ADT | ISO | 400 mm | - | - | 260 mm | - | 130 mm | - | 260x400x130 |
| 7052 B | ISO | 400 mm | 171 mm | 65 mm | 260 mm | 65 mm | - | - | 260x400x65 |
| 7052 B-UD | Loyal | 400 mm | - | - | 260 mm | 473 kN | 130 mm | 862 kN | 260x400x130 |
| N328 KOYO Single-row cylindrical roller bearings | Mass inner ring:0.0095 kg; B:17 mm; d:14 mm; F:17 mm; r, r1,2 min.:0.3 mm; |
| NU103 KOYO Single-row cylindrical roller bearings | Basic Static Radial Load Rating Co:31000 N; Oil Speed Rating Open/Shielded n2:8500 rpm; Basic Dynamic Radial Load Rating C:55300 N; Accessories:Seal & Snap-Ring; Fillet Radius ra:1.50 mm; D:100.0000 mm; Grease Speed Rating Open/Shielded n1:7000 rpm; B:25.00 mm; d:35.000 mm; Sealed Speed Rating n3:49 |
| NU233 KOYO Single-row cylindrical roller bearings | Fillet Radius ra:3.00 mm; B:144.00 mm; Grease Speed Rating n1:1400 rpm; d:170.000 mm; Oil Speed Rating n2:1700 rpm; Basic Static Radial Load Rating Co:1140000 N; Fillet Radius rb:1.00 mm; Basic Dynamic Radial Load Rating C:715000 N; D:360.0000 mm; |
| NU2228R KOYO Single-row cylindrical roller bearings | Specific dynamic load factor K:10 N/mm²; d:45 mm; Specific static load factor K0:20 N/mm²; Coefficient of friction µ min.:0.05; B:35 mm; Coefficient of friction µ max.:0.1; Tolerance shaft:h8; Permissible sliding velocity v max.:5 m/s; D:51 mm; Mass bushing:0.098 kg; Permissibl |
| NU330R KOYO Single-row cylindrical roller bearings | d:55.000 mm; Oil Speed Rating n2:5000 rpm; Grease Speed Rating n1:3800 rpm; D:120.0000 mm; Fillet Radius ra:2.00 mm; Basic Dynamic Radial Load Rating C:119000 N; B:52.40 mm; Basic Static Radial Load Rating Co:122000 N; Sealed Speed Rating n3:3800 rpm; Accessories:One Shield; |
| NU2328 KOYO Single-row cylindrical roller bearings | d1:230 mm; Mass shaft washer:6.12 kg; B:24.5 mm; r1,2 min.:3 mm; d:110 mm; |
| NU223 KOYO Single-row cylindrical roller bearings | Stabilizing ring:SR-17-14; Mass pillow block:18 kg; Appropriate attachment bolt size G:0.75 in; Housing:SAF 517; H:180.975 mm; Taconite seal:TER 52; Da:150 mm; A1:88.9 mm; Cap bolt, SAE grade:5; A2:198.438 mm; Cap bolt:2 x 5/8-11 UNC; R1:53.975 mm; J min.:250.825 mm; N1:22.225 mm; Cap bolt recommend |
| NU328R KOYO Single-row cylindrical roller bearings | M:57.5 mm; B:2.5 mm; d1:73 mm; f:8 mm; Mass lock washer:0.04 kg; d:60 mm; d2:86 mm; |
| NU228R KOYO Single-row cylindrical roller bearings | J min.:266.7 mm; H:190.5 mm; H1:95.25 mm; B:80.169 mm; Basic dynamic load rating C:325 kN; Limiting speed:2300 r/min; Attachment bolt diameter G:19.05 mm; J1:60.325 mm; S:0.794 mm; H2:57.15 mm; Mass bearing unit:16.6 kg; s:40.084 mm; J max.:298.45 mm; da:87.313 mm; A:114.3 mm; L:355.6 mm; |
| N23 KOYO Single-row cylindrical roller bearings | B:52.00 mm; D:160.0000 mm; Fillet Radius rb:1.00 mm; d:105.000 mm; Grease Speed Rating n1:7400 rpm; Fillet Radius ra:2.00 mm; Oil Speed Rating n2:10000 rpm; Basic Static Radial Load Rating Co:180000 N; Basic Dynamic Radial Load Rating C:138000 N; |
| N33 KOYO Single-row cylindrical roller bearings | P180°:4000 kN; Locating ring:2 x FRB 10/720; P120°:3600 kN; P150°:3100 kN; Appropriate attachment bolt, size G:42 mm; A:455 mm; N1:48 mm; Cap bolt, size:M 42x280; P55°:10000 kN; Q150°:3350 kN; Oil level, max.:128 mm; Bearing (basic designation):23188 K; Eye bolt, size:2 x M 42; A |
| NU2228 KOYO Single-row cylindrical roller bearings | Grease Speed Rating Open/Shielded n1:2400 rpm; Fillet Radius ra:2.00 mm; Basic Static Radial Load Rating Co:104000 N; Basic Dynamic Radial Load Rating C:93600 N; Oil Speed Rating Open/Shielded n2:3000 rpm; Sealed Speed Rating n3:1600 rpm; d:170.000 mm; D:230.0000 mm; Accessories:One Seal; B:28.00 mm |
| NU2230R KOYO Single-row cylindrical roller bearings | T:57 mm; Cb min.:14 mm; D:320 mm; d:180 mm; Dimension series:4GB; Fatigue load limit Pu:80 kN; Calculation factor e:0.46; Basic dynamic load rating C:629 kN; Calculation factor Y0:0.7; db min.:199.5 mm; Da min.:278 mm; Basic static load rating C0:815 kN; Limiting speed:2000 r/min; Reference speed:15 |
| N228 KOYO Single-row cylindrical roller bearings | Calculation factor f1:0.99; Mass bearing:0.1 kg; C2:1.8 mm; d1:46.5 mm; Preload class B GB:250 N; Calculation factor (single, tandem) Y0:0.38; Calculation factor f2C:1.07; Preload class C GC:505 N; Calculation factor (back-to-back, face-to-face) Y2:1.41; d2:44.8 mm; dn:48 mm; Attainable speed for gr |
| NU2328R KOYO Single-row cylindrical roller bearings | Fatigue load limit Pu:1.5 kN; Fw:16 mm; Basic dynamic load rating C:11 kN; Basic static load rating C0:12.5 kN; U:12 mm; Limiting speed:26000 r/min; Reference speed:22000 r/min; Mass needle roller and cage assembly:0.01 kg; Ew:22 mm; |
| NU230R KOYO Single-row cylindrical roller bearings | B:80.00 mm; Oil Speed Rating n2:1400 rpm; d:260.000 mm; D:480.0000 mm; Basic Dynamic Radial Load Rating C:624000 N; Fillet Radius ra:4.00 mm; Basic Static Radial Load Rating Co:1020000 N; Fillet Radius rb:1.50 mm; Grease Speed Rating n1:1100 rpm; |
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