NNU49/500-S-K-M-SP With Size 500x670x170 mm Super Precision Double Row Cylindrical Roller Bearings
Overview
Double row, with tapered bore cylindrical roller bearing, taper 1:12, separable, Non-locating bearings; Outer ring with three rigid ribs, inner ring without ribs, lubrication groove and lubrication holes in the outer ring, brass double comb cage; tolerance class SP; C1 internal clearance smaller than C2.
Suffix meaning
S-Lubrication holes and a lubrication groove in the outer ring
M-Solid brass cage, roller guided
SP-Tolerance class SP
C1-Radial internal clearance
Bore diameter-500 mm; Outside diameter-670 mm; Width-170 mm; Mass-161.23 kg; Cr=2330 kN; C0r=6100 kN; Limiting speed for grease lubrication is 1030 1/min; Limiting speed for oil lubrication is 1220 1/min.
The Extended same type with different suffixes NNU49/500MAW33C3; NNU 49/500 BK/SPW33X; NNU49/500-S-M-C3; NNU49/500-SKM-SP; NNU49/500 are also ready in stock for your machine application needs.
Specifications
| Dimensions &Technical Datasheets | |
| Part NO. | NNU49/500-S-K-M-SP -Super Precision Double-Row Cylindrical Roller Bearings |
| Brand | FAG made in GERMANY And SDVV brand made in China |
| Main Dimensions | 500x670x170 mm |
| d | 500 mm |
| D | 670 mm |
| B | 170 mm |
| Limiting speed for grease lubrication | 1030 1/min |
| Limiting speed for oil lubrication | 1220 1/min |
| da | 550.6 mm |
| Da | 626 mm |
| r1 min | 5 mm |
| Cr | 2330 kN |
| C0r | 6100 kN |
| M | 161.23 kg |
Features & Application
High Rigidity and Load Capacity
The double-row roller structure provides extremely high radial load capacity, suitable for spindle support tasks in heavy machinery.
Tapered Bore Design for Easy Installation and Adjustment
The tapered inner bore, used in conjunction with a locking sleeve, allows for easy keyless connection on stepped shafts and precise control of the interference fit through axial advancement, ensuring smooth operation.
High Precision and Stability
SP grade precision means tighter dimensional tolerances and rotational accuracy, suitable for high-end equipment sensitive to vibration and temperature rise.
Suitable for High-Speed Operation Environments
Optimized internal geometry and cage design allow for speeds of approximately 730 rpm under grease lubrication, and even higher with oil lubrication, meeting the needs of most industrial spindles.
Wide Range of Application Industries
This bearing is commonly found in the following areas:
Machine tool spindle systems
Construction machinery and mining equipment
Metallurgical rolling mills and power equipment
Petroleum machinery and cement machinery
High-speed laser cutting machines and plastic molding machines
More Same Bearings Code NO.
| Designation | Design | Mass m ≈kg |
Dimensions | ||||||
| d | D | B | r min. |
s1) | F | D₁ ≈ |
|||
| NNU4980-S-M-C3 NNU4080-S-M |
1 | 952 | 400 | 540 | 140 | 4 | 55 | 446 | 4,908 |
| 1 | 199 | 400 | 600 | 200 | 5 | 95 | 450 | 534 | |
| Z-526089.ZL | 7 | 343 | 400 | 640 | 260 | 5 | 一 | 461 | 568 |
| NNU4180-M | 2 | 324 | 400 | 650 | 250 | 6 | 114 | 463 | 577 |
| NNU4884-S-M | 1 | 484 | 420 | 520 | 100 | 21 | 62 | 453 | 4,866 |
| NNU4984-S-M-C3 | 1 | 992 | 420 | 560 | 140 | 4 | 83 | 466 | 5,108 |
| Z-539553.ZL | 6 | 108 | 420 | 580 | 130 | 4 | 7 | 460 | 5,268 |
| Z-533053.ZL | 1 | 128 | 420 | 580 | 160 | 4 | 59 | 463 | 530 |
| NNU4184-M | 2 | 434 | 420 | 700 | 280 | 6 | 87 | 491 | 612 |
| NNU4888-S-M | 1 | 502 | 440 | 540 | 100 | 21 | 38 | 473 | 5,066 |
| Z-528620.ZL | 6 | 814 | 440 | 570 | 120 | 3 | 9 | 473 | 5,264 |
| NNU4988-S-M-C3 | 1 | 137 | 440 | 600 | 160 | 4 | 58 | 490 | 5,444 |
| NNU4088-S-M | 1 | 243 | 440 | 650 | 212 | 6 | 8 | 491 | 581 |
| NNU4188-M | 2 | 453 | 440 | 720 | 280 | 6 | 129 | 511 | 632 |
| Z-524628.ZL | 6 | 583 | 460 | 570 | 105 | 3 | 63 | 4,867 | 5,336 |
| NNU4892-S-M | 1 | 751 | 460 | 580 | 118 | 3 | 49 | 499 | 539 |
| NNU4992-S-M-C3 | 1 | 141 | 460 | 620 | 160 | 4 | 58 | 510 | 5,644 |
| NNU4092-S-M | 1 | 275 | 460 | 680 | 218 | 6 | 95 | 516 | 606 |
| NNU4192-M | 2 | 550 | 460 | 760 | 300 | 75 | 87 | 537 | 663 |
| NNU4896-S-M | 1 | 777 | 480 | 600 | 118 | 3 | 49 | 519 | 559 |
| NNU4996-S-M-C3 | 1 | 154 | 480 | 650 | 170 | 5 | 6 | 534 | 593 |
| NNU4096-S-M | 1 | 282 | 480 | 700 | 218 | 6 | 95 | 538 | 6,315 |
| NNU4196-M | 2 | 602 | 480 | 790 | 308 | 75 | 13 | 557 | 6,915 |
| NNU48/500-S-M | 1 | 757 | 500 | 620 | 118 | 3 | 47 | 539 | 5,805 |
| Z-523745.ZL | 6 | 817 | 500 | 620 | 120 | 4 | 10 | 532 | 582 |
| NNU49/500-S-M-C3 | 1 | 159 | 500 | 670 | 170 | 5 | 6 | 554 | 613 |
| NNU40/500-S-M | 1 | 295 | 500 | 720 | 218 | 6 | 95 | 558 | 6,515 |
| Z-509393.ZL | 3 | 312 | 500 | 720 | 218 | 6 | 95 | 558 | 6,476 |
| NNU41/500-M | 2 | 706 | 500 | 830 | 325 | 75 | 117 | 582 | 725 |
| NNU49/530-S-M-C3 | 1 | 206 | 530 | 710 | 180 | 5 | 72 | 588 | 655 |
| NNU40/530-S-M | 1 | 407 | 530 | 780 | 250 | 6 | 118 | 591 | 698 |
| NNU41/530-M | 2 | 796 | 530 | 870 | 335 | 75 | 162 | 618 | 761 |
| Z-549875.ZL | 1 | 452 | 550 | 800 | 260 | 6 | 一 | 612 | 721 |
| Z-522739.ZL NNU49/560-S-M-C3 |
6 | 91 | 560 | 680 | 120 | 5 | 85 | 592 | 642 |
| 1 | 246 | 560 | 750 | 190 | 5 | 58 | 617 | 684 | |
| NNU40/560-S-M | 1 | 461 | 560 | 820 | 258 | 6 | 138 | 630 | 737 |
| NNU41/560-M | 2 | 952 | 560 | 920 | 355 | 75 | 158 | 653 | 804 |
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