Complaint
Granville bearing manufacturer in the production of electric motor grade deep groove ball bearings, the company is committed to developing all kinds of precision radial ball bearings with an inner diameter of 2mm-100mm.
The factory covers an area of 58000 square meters, the company has advanced assembly lines and a perfect quality testing center. After more than ten years of management and innovation, with more than 120 automatic production lines, various kinds of testing, and inspection instruments, with the annual production capacity of 160 million sets of reliable high precision quality bearings.
The comprehensive application of automation production lines is a premise to ensure product's stable quality, what's more, it is a mark that the enterprises improve to digital management modern high-tech manufacturer.
Seiko quality, the pursuit of excellence: the control and improvement of quality is the constant pursuit of Granville, in strict accordance with the system of the provisions of the quality of each process.
| We strictly follow the core of quality management process control: |
APQP: product quality advance planning
SPC: Statistical process control
MSA: Measurement system analysis
FMEA: Analysis of potential failure modes and consequences
PPAP: Production part approval procedure
In the factory testing laboratories, various bearing parts are examined in detail. The factory has its own professional bearing life tester, after bearing life and durability test, our bearings have the advantages of long service life, and high durability. We are keeping an introduction of the latest measurement and testing equipment. Quality procedures are based on extensive, repeatedly carried out product tests - both before inclusion in the range and after.
| We manufacturing: |
Levels Applications Materials
We manufacture GIL bearings, the advantage in manufacturing electric motor quality deep groove ball bearings up to ABEC-3, Z3-V3, ABEC-5 Z4-V4 level; A reliable production resource of high-quality repair parts for the aftermarket operations of automotive and light truck manufacturers worldwide, over 1000 kits includes hub assemblies and three generations of wheel bearing designs; Granville foundry makes an extensive and full line of mounted bearing units and housings in industry-standard and custom configurations. Casting iron, ductile iron, stainless steel, and plastic materials are available.
| Partnerships Reliable Supply-Chain: |
All series products:
| Designation | Principal dimensions | Basic load ratings | Speed ratings | ||||
| dynamic | static | Reference speed | Limiting speed | ||||
| Fw[in] | D[in] | C[in] | C[lbf] | C0[lbf] | [r/min] | [r/min] | |
| NK 10/12 TN | 0.394 | 0.669 | 0.472 | 1 027 | 1 281 | 28 000 | 32 000 |
| NK 10/16 TN | 0.394 | 0.669 | 0.63 | 1 335 | 1 798 | 28 000 | 32 000 |
| NK 100/26 | 3.937 | 4.724 | 1.024 | 17 198 | 35 070 | 4 000 | 4 500 |
| NK 100/36 | 3.937 | 4.724 | 1.417 | 24 279 | 56 202 | 4 000 | 4 500 |
| NK 105/26 | 4.134 | 4.921 | 1.024 | 17 558 | 37 318 | 3 800 | 4 300 |
| NK 105/36 | 4.134 | 4.921 | 1.417 | 25 179 | 59 574 | 3 800 | 4 300 |
| NK 110/30 | 4.331 | 5.118 | 1.181 | 21 762 | 49 458 | 3 600 | 4 000 |
| NK 110/40 | 4.331 | 5.118 | 1.575 | 27 651 | 68 567 | 3 600 | 4 000 |
| NK 12/12 | 0.472 | 0.748 | 0.472 | 1 508 | 1 832 | 26 000 | 30 000 |
| NK 12/16 | 0.472 | 0.748 | 0.63 | 2 053 | 2 698 | 26 000 | 30 000 |
| NK 14/16 | 0.551 | 0.866 | 0.63 | 2 293 | 2 810 | 24 000 | 28 000 |
| NK 14/20 | 0.551 | 0.866 | 0.787 | 2 878 | 3 732 | 24 000 | 28 000 |
| NK 15/16 | 0.591 | 0.906 | 0.63 | 2 473 | 3 147 | 24 000 | 26 000 |
| NK 15/20 | 0.591 | 0.906 | 0.787 | 3 102 | 4 114 | 24 000 | 26 000 |
| NK 16/16 | 0.63 | 0.945 | 0.63 | 2 630 | 3 440 | 22 000 | 26 000 |
| NK 16/20 | 0.63 | 0.945 | 0.787 | 3 260 | 4 496 | 22 000 | 26 000 |
| NK 17/16 | 0.669 | 0.984 | 0.63 | 2 720 | 3 732 | 22 000 | 26 000 |
| NK 17/20 | 0.669 | 0.984 | 0.787 | 3 395 | 4 946 | 22 000 | 26 000 |
| NK 18/16 | 0.709 | 1.024 | 0.63 | 2 878 | 3 957 | 22 000 | 24 000 |
| NK 18/20 | 0.709 | 1.024 | 0.787 | 3 619 | 5 305 | 22 000 | 24 000 |
| NK 19/16 | 0.748 | 1.063 | 0.63 | 3 012 | 4 271 | 20 000 | 24 000 |
| NK 19/20 | 0.748 | 1.063 | 0.787 | 3 709 | 5 733 | 20 000 | 24 000 |
| NK 20/16 | 0.787 | 1.102 | 0.63 | 2 967 | 4 339 | 19 000 | 22 000 |
| NK 20/20 | 0.787 | 1.102 | 0.787 | 3 709 | 5 733 | 19 000 | 22 000 |
| NK 21/16 | 0.827 | 1.142 | 0.63 | 3 102 | 4 586 | 19 000 | 22 000 |
| NK 21/20 | 0.827 | 1.142 | 0.787 | 3 867 | 6 070 | 19 000 | 22 000 |
| NK 22/16 | 0.866 | 1.181 | 0.63 | 3 192 | 4 856 | 18 000 | 20 000 |
| NK 22/20 | 0.866 | 1.181 | 0.787 | 4 024 | 6 519 | 18 000 | 20 000 |
| NK 24/16 | 0.945 | 1.26 | 0.63 | 3 462 | 5 508 | 16 000 | 19 000 |
| NK 24/20 | 0.945 | 1.26 | 0.787 | 4 271 | 7 306 | 16 000 | 19 000 |
| Designation | Principal dimensions | Basic load ratings | Speed ratings | ||||
| dynamic | static | Reference speed | Limiting speed | ||||
| Fw[in] | D[in] | C[in] | C[lbf] | C0[lbf] | [r/min] | [r/min] | |
| NK 25/16 | 0.984 | 1.299 | 0.63 | 3 395 | 5 508 | 16 000 | 18 000 |
| NK 25/20 | 0.984 | 1.299 | 0.787 | 4 271 | 7 306 | 16 000 | 18 000 |
| NK 26/16 | 1.024 | 1.339 | 0.63 | 3 530 | 5 845 | 15 000 | 17 000 |
| NK 26/20 | 1.024 | 1.339 | 0.787 | 4 361 | 7 756 | 15 000 | 17 000 |
| NK 28/20 | 1.102 | 1.457 | 0.787 | 4 946 | 8 206 | 14 000 | 16 000 |
| NK 28/30 | 1.102 | 1.457 | 1.181 | 7 171 | 13 489 | 14 000 | 16 000 |
| NK 29/20 TN | 1.142 | 1.496 | 0.787 | 5 530 | 9 554 | 14 000 | 15 000 |
| NK 29/30 | 1.142 | 1.496 | 1.181 | 7 171 | 13 489 | 14 000 | 15 000 |
| NK 30/20 TN | 1.181 | 1.575 | 0.787 | 5 643 | 9 892 | 13 000 | 15 000 |
| NK 30/30 TN | 1.181 | 1.575 | 1.181 | 8 295 | 16 186 | 13 000 | 15 000 |
| NK 32/20 TN | 1.26 | 1.654 | 0.787 | 5 935 | 10 791 | 12 000 | 14 000 |
| NK 32/30 | 1.26 | 1.654 | 1.181 | 7 666 | 14 725 | 12 000 | 14 000 |
| NK 35/20 TN | 1.378 | 1.772 | 0.787 | 6 182 | 11 690 | 11 000 | 13 000 |
| NK 35/30 TN | 1.378 | 1.772 | 1.181 | 9 037 | 19 109 | 11 000 | 13 000 |
| NK 37/20 | 1.457 | 1.85 | 0.787 | 5 643 | 10 454 | 11 000 | 12 000 |
| NK 37/30 | 1.457 | 1.85 | 1.181 | 8 295 | 17 198 | 11 000 | 12 000 |
| NK 38/20 | 1.496 | 1.89 | 0.787 | 5 733 | 11 016 | 11 000 | 12 000 |
| NK 38/30 | 1.496 | 1.89 | 1.181 | 8 408 | 17 985 | 11 000 | 12 000 |
| NK 40/20 TN | 1.575 | 1.969 | 0.787 | 6 677 | 13 489 | 10 000 | 11 000 |
| NK 40/30 | 1.575 | 1.969 | 1.181 | 8 543 | 18 659 | 10 000 | 11 000 |
| NK 42/20 | 1.654 | 2.047 | 0.787 | 6 070 | 11 915 | 9 500 | 11 000 |
| NK 42/30 | 1.654 | 2.047 | 1.181 | 8 790 | 19 446 | 9 500 | 11 000 |
| NK 43/20 | 1.693 | 2.087 | 0.787 | 6 182 | 12 364 | 9 500 | 11 000 |
| NK 43/30 | 1.693 | 2.087 | 1.181 | 9 037 | 20 233 | 9 500 | 11 000 |
| NK 45/20 TN | 1.772 | 2.165 | 0.787 | 7 059 | 14 725 | 9 000 | 10 000 |
| NK 45/30 TN | 1.772 | 2.165 | 1.181 | 10 274 | 24 279 | 9 000 | 10 000 |
| NK 47/20 | 1.85 | 2.244 | 0.787 | 6 564 | 13 713 | 8 500 | 10 000 |
| NK 47/30 | 1.85 | 2.244 | 1.181 | 9 397 | 22 031 | 8 500 | 10 000 |
| NK 5/10 TN | 0.197 | 0.394 | 0.394 | 515 | 450 | 36 000 | 40 000 |
| NK 5/12 TN | 0.197 | 0.394 | 0.472 | 656 | 607 | 36 000 | 40 000 |
| Designation | Principal dimensions | Basic load ratings | Speed ratings | ||||
| dynamic | static | Reference speed | Limiting speed | ||||
| Fw[in] | D[in] | C[in] | C[lbf] | C0[lbf] | [r/min] | [r/min] | |
| NK 50/25 TN | 1.969 | 2.441 | 0.984 | 9 644 | 20 570 | 8 000 | 9 000 |
| NK 50/35 TN | 1.969 | 2.441 | 1.378 | 13 106 | 30 799 | 8 000 | 9 000 |
| NK 55/25 | 2.165 | 2.677 | 0.984 | 9 037 | 19 783 | 7 500 | 8 500 |
| NK 55/35 | 2.165 | 2.677 | 1.378 | 11 758 | 27 427 | 7 500 | 8 500 |
| NK 6/10 TN | 0.236 | 0.472 | 0.394 | 573 | 531 | 34 000 | 38 000 |
| NK 6/12 TN | 0.236 | 0.472 | 0.472 | 742 | 719 | 34 000 | 38 000 |
| NK 60/25 TN | 2.362 | 2.835 | 0.984 | 10 521 | 24 729 | 6 700 | 7 500 |
| NK 60/35 | 2.362 | 2.835 | 1.378 | 12 364 | 30 124 | 6 700 | 7 500 |
| NK 65/25 | 2.559 | 3.071 | 0.984 | 9 892 | 23 380 | 6 300 | 7 000 |
| NK 65/35 | 2.559 | 3.071 | 1.378 | 13 106 | 32 822 | 6 300 | 7 000 |
| NK 68/25 | 2.677 | 3.228 | 0.984 | 9 892 | 21 357 | 6 000 | 6 700 |
| NK 68/35 | 2.677 | 3.228 | 1.378 | 13 601 | 32 822 | 6 000 | 6 700 |
| NK 7/10 TN | 0.276 | 0.551 | 0.394 | 632 | 618 | 32 000 | 36 000 |
| NK 7/12 TN | 0.276 | 0.551 | 0.472 | 805 | 843 | 32 000 | 36 000 |
| NK 70/25 | 2.756 | 3.347 | 0.984 | 10 026 | 22 031 | 6 000 | 6 700 |
| NK 70/35 | 2.756 | 3.347 | 1.378 | 13 848 | 33 721 | 6 000 | 6 700 |
| NK 73/25 | 2.874 | 3.543 | 0.984 | 11 870 | 23 830 | 5 600 | 6 300 |
| NK 73/35 | 2.874 | 3.543 | 1.378 | 16 568 | 36 644 | 5 600 | 6 300 |
| NK 75/25 | 2.953 | 3.622 | 0.984 | 12 117 | 24 729 | 5 300 | 6 000 |
| NK 75/35 | 2.953 | 3.622 | 1.378 | 16 816 | 38 218 | 5 300 | 6 000 |
| NK 8/12 TN | 0.315 | 0.591 | 0.472 | 854 | 955 | 32 000 | 36 000 |
| NK 8/16 TN | 0.315 | 0.591 | 0.63 | 1 126 | 1 315 | 32 000 | 36 000 |
| NK 80/25 | 3.15 | 3.74 | 0.984 | 12 612 | 28 551 | 5 000 | 5 600 |
| NK 80/35 | 3.15 | 3.74 | 1.378 | 17 198 | 42 714 | 5 000 | 5 600 |
| NK 85/25 | 3.347 | 4.134 | 0.984 | 15 579 | 29 675 | 4 800 | 5 300 |
| NK 85/35 | 3.347 | 4.134 | 1.378 | 21 762 | 44 962 | 4 800 | 5 300 |
| NK 9/12 TN | 0.354 | 0.63 | 0.472 | 989 | 1 169 | 30 000 | 34 000 |
| NK 9/16 TN | 0.354 | 0.63 | 0.63 | 1 286 | 1 619 | 30 000 | 34 000 |
| NK 90/25 | 3.543 | 4.331 | 0.984 | 16 209 | 31 473 | 4 500 | 5 000 |
| NK 90/35 | 3.543 | 4.331 | 1.378 | 22 706 | 48 559 | 4 500 | 5 000 |
| Designation | Principal dimensions | Basic load ratings | Speed ratings | ||||
| dynamic | static | Reference speed | Limiting speed | ||||
| Fw[in] | D[in] | C[in] | C[lbf] | C0[lbf] | [r/min] | [r/min] | |
| NK 95/26 | 3.74 | 4.528 | 1.024 | 16 568 | 32 822 | 4 300 | 4 800 |
| NK 95/36 | 3.74 | 4.528 | 1.417 | 23 605 | 52 156 | 4 300 | 4 800 |
| NKS 20 | 0.787 | 1.26 | 0.787 | 5 238 | 6 070 | 18 000 | 20 000 |
| NKS 24 | 0.945 | 1.457 | 0.787 | 5 845 | 7 531 | 15 000 | 17 000 |
| NKS 25 | 0.984 | 1.496 | 0.787 | 6 182 | 8 093 | 15 000 | 17 000 |
| NKS 28 | 1.102 | 1.654 | 0.787 | 6 430 | 8 768 | 13 000 | 15 000 |
| NKS 30 | 1.181 | 1.772 | 0.866 | 7 171 | 9 667 | 12 000 | 14 000 |
| NKS 32 | 1.26 | 1.85 | 0.866 | 7 666 | 10 454 | 12 000 | 13 000 |
| NKS 35 | 1.378 | 1.969 | 0.866 | 7 913 | 11 240 | 11 000 | 12 000 |
| NKS 37 | 1.457 | 2.047 | 0.866 | 8 295 | 12 140 | 10 000 | 12 000 |
| NKS 40 | 1.575 | 2.165 | 0.866 | 8 543 | 12 814 | 9 500 | 11 000 |
| NKS 43 | 1.693 | 2.284 | 0.866 | 8 790 | 13 713 | 9 000 | 10 000 |
| NKS 45 | 1.772 | 2.362 | 0.866 | 9 037 | 14 388 | 8 500 | 10 000 |
| NKS 50 | 1.969 | 2.559 | 0.866 | 9 644 | 16 186 | 8 000 | 9 000 |
| NKS 55 | 2.165 | 2.835 | 0.866 | 10 026 | 17 535 | 7 000 | 8 000 |
| NKS 60 | 2.362 | 3.15 | 1.102 | 14 096 | 23 380 | 6 300 | 7 500 |
| NKS 65 | 2.559 | 3.347 | 1.102 | 14 837 | 25 628 | 6 000 | 6 700 |
| NKS 70 | 2.756 | 3.543 | 1.102 | 15 332 | 26 977 | 5 600 | 6 300 |
| NKS 75 | 2.953 | 3.74 | 1.102 | 15 827 | 29 675 | 5 300 | 6 000 |
| RNA 4822 | 4.724 | 5.512 | 1.181 | 21 020 | 52 156 | 3 400 | 3 800 |
| RNA 4824 | 5.118 | 5.906 | 1.181 | 22 256 | 57 326 | 3 200 | 3 600 |
| RNA 4826 | 5.709 | 6.496 | 1.378 | 26 752 | 73 063 | 2 800 | 3 200 |
| RNA 4828 | 6.102 | 6.89 | 1.378 | 27 202 | 77 559 | 2 600 | 3 000 |
| RNA 4830 | 6.496 | 7.48 | 1.575 | 33 047 | 93 296 | 2 400 | 2 800 |
| RNA 4832 | 6.89 | 7.874 | 1.575 | 35 295 | 101 164 | 2 200 | 2 600 |
| RNA 4834 | 7.284 | 8.465 | 1.772 | 40 241 | 116 901 | 2 200 | 2 400 |
| RNA 4836 | 7.677 | 8.858 | 1.772 | 42 714 | 128 141 | 2 000 | 2 400 |
| RNA 4838 | 8.268 | 9.449 | 1.969 | 49 458 | 159 614 | 1 900 | 2 200 |
| RNA 4840 | 8.661 | 9.843 | 1.969 | 50 357 | 165 235 | 1 800 | 2 000 |
| RNA 4844 | 9.449 | 10.63 | 1.969 | 53 505 | 183 219 | 1 700 | 1 900 |
| Designation | Principal dimensions | Basic load ratings | Speed ratings | ||||
| dynamic | static | Reference speed | Limiting speed | ||||
| Fw[in] | D[in] | C[in] | C[lbf] | C0[lbf] | [r/min] | [r/min] | |
| RNA 4848 | 10.433 | 11.811 | 2.362 | 78 009 | 251 786 | 1 500 | 1 700 |
| RNA 4852 | 11.221 | 12.598 | 2.362 | 80 482 | 269 771 | 1 400 | 1 500 |
| RNA 4856 | 12.008 | 13.78 | 2.717 | 96 443 | 296 748 | 1 300 | 1 400 |
| RNA 4860 | 12.992 | 14.961 | 3.15 | 133 537 | 404 656 | 1 100 | 1 300 |
| RNA 4872 | 15.354 | 17.323 | 3.15 | 140 955 | 458 610 | 950 | 1 100 |
| RNA 49/22 | 1.102 | 1.535 | 0.669 | 5 238 | 7 194 | 14 000 | 15 000 |
| RNA 49/28 | 1.26 | 1.772 | 0.669 | 5 643 | 8 206 | 12 000 | 14 000 |
| RNA 49/32 | 1.575 | 2.047 | 0.787 | 6 924 | 11 465 | 10 000 | 11 000 |
| RNA 4900 | 0.551 | 0.866 | 0.512 | 1 978 | 2 338 | 24 000 | 28 000 |
| RNA 4900 RS | 0.551 | 0.866 | 0.512 | 1 657 | 1 832 | 12 000 | |
| RNA 4900.2RS | 0.551 | 0.866 | 0.512 | 1 657 | 1 832 | 12 000 | |
| RNA 4901 | 0.63 | 0.945 | 0.512 | 2 226 | 2 743 | 22 000 | 26 000 |
| RNA 4901 RS | 0.63 | 0.945 | 0.512 | 1 819 | 2 169 | 11 000 | |
| RNA 4901.2RS | 0.63 | 0.945 | 0.512 | 1 819 | 2 169 | 11 000 | |
| RNA 4902 | 0.787 | 1.102 | 0.512 | 2 518 | 3 440 | 19 000 | 22 000 |
| RNA 4902 RS | 0.787 | 1.102 | 0.512 | 2 053 | 2 698 | 9 500 | |
| RNA 4902.2RS | 0.787 | 1.102 | 0.512 | 2 053 | 2 698 | 9 500 | |
| RNA 4903 | 0.866 | 1.181 | 0.512 | 2 563 | 3 664 | 18 000 | 20 000 |
| RNA 4903 RS | 0.866 | 1.181 | 0.512 | 2 140 | 2 900 | 9 000 | |
| RNA 4903.2RS | 0.866 | 1.181 | 0.512 | 2 140 | 2 900 | 9 000 | |
| RNA 4904 | 0.984 | 1.457 | 0.669 | 4 856 | 6 295 | 15 000 | 17 000 |
| RNA 4904 RS | 0.984 | 1.457 | 0.669 | 4 361 | 5 036 | 7 500 | |
| RNA 4904.2RS | 0.984 | 1.457 | 0.669 | 4 361 | 5 036 | 7 500 | |
| RNA 4905 | 1.181 | 1.654 | 0.669 | 5 440 | 7 756 | 13 000 | 15 000 |
| RNA 4905 RS | 1.181 | 1.654 | 0.669 | 4 856 | 6 182 | 6 300 | |
| RNA 4905.2RS | 1.181 | 1.654 | 0.669 | 4 856 | 6 182 | 6 300 | |
| RNA 4906 | 1.378 | 1.85 | 0.669 | 5 733 | 8 768 | 11 000 | 13 000 |
| RNA 4906 RS | 1.378 | 1.85 | 0.669 | 5 238 | 7 194 | 5 600 | |
| RNA 4906.2RS | 1.378 | 1.85 | 0.669 | 5 238 | 7 194 | 5 600 | |
| RNA 4907 | 1.654 | 2.165 | 0.787 | 7 171 | 12 140 | 9 500 | 11 000 |
| Designation | Principal dimensions | Basic load ratings | Speed ratings | ||||
| dynamic | static | Reference speed | Limiting speed | ||||
| Fw[in] | D[in] | C[in] | C[lbf] | C0[lbf] | [r/min] | [r/min] | |
| RNA 4907 RS | 1.654 | 2.165 | 0.787 | 6 070 | 9 667 | 4 800 | |
| RNA 4907.2RS | 1.654 | 2.165 | 0.787 | 6 070 | 9 667 | 4 800 | |
| RNA 4908 | 1.89 | 2.441 | 0.866 | 9 644 | 15 961 | 8 000 | 9 500 |
| RNA 4908 RS | 1.89 | 2.441 | 0.866 | 8 295 | 13 151 | 4 000 | |
| RNA 4908.2RS | 1.89 | 2.441 | 0.866 | 8 295 | 13 151 | 4 000 | |
| RNA 4909 | 2.047 | 2.677 | 0.866 | 10 274 | 17 535 | 7 500 | 8 500 |
| RNA 4909 RS | 2.047 | 2.677 | 0.866 | 8 790 | 14 388 | 3 800 | |
| RNA 4909.2RS | 2.047 | 2.677 | 0.866 | 8 790 | 14 388 | 3 800 | |
| RNA 4910 | 2.284 | 2.835 | 0.866 | 10 633 | 19 109 | 7 000 | 8 000 |
| RNA 4910 RS | 2.284 | 2.835 | 0.866 | 9 037 | 15 624 | 3 400 | |
| RNA 4910.2RS | 2.284 | 2.835 | 0.866 | 9 037 | 15 624 | 3 400 | |
| RNA 4911 | 2.48 | 3.15 | 0.984 | 12 859 | 23 830 | 6 300 | 7 000 |
| RNA 4912 | 2.677 | 3.347 | 0.984 | 13 601 | 25 628 | 6 000 | 6 700 |
| RNA 4913 | 2.835 | 3.543 | 0.984 | 13 848 | 26 977 | 5 600 | 6 300 |
| RNA 4914 | 3.15 | 3.937 | 1.181 | 18 929 | 36 644 | 5 000 | 5 600 |
| RNA 4915 | 3.347 | 4.134 | 1.181 | 18 929 | 38 218 | 4 800 | 5 300 |
| RNA 4916 | 3.543 | 4.331 | 1.181 | 19 783 | 41 140 | 4 500 | 5 000 |
| RNA 4917 | 3.937 | 4.724 | 1.378 | 24 279 | 56 202 | 4 000 | 4 500 |
| RNA 4918 | 4.134 | 4.921 | 1.378 | 25 179 | 59 574 | 3 800 | 4 300 |
| RNA 4919 | 4.331 | 5.118 | 1.378 | 25 628 | 60 698 | 3 600 | 4 000 |
| RNA 4920 | 4.528 | 5.512 | 1.575 | 28 101 | 62 947 | 3 400 | 4 000 |
| RNA 4922 | 4.921 | 5.906 | 1.575 | 29 225 | 67 443 | 3 200 | 3 600 |
| RNA 4924 | 5.315 | 6.496 | 1.772 | 39 566 | 91 048 | 3 000 | 3 400 |
| RNA 4926 | 5.906 | 7.087 | 1.969 | 44 512 | 107 908 | 2 600 | 3 000 |
| RNA 4928 | 6.299 | 7.48 | 1.969 | 46 086 | 114 653 | 2 400 | 2 800 |
| RNA 69/22 | 1.102 | 1.535 | 1.181 | 8 295 | 12 814 | 14 000 | 15 000 |
| RNA 69/28 | 1.26 | 1.772 | 1.181 | 8 902 | 14 725 | 12 000 | 14 000 |
| RNA 69/32 | 1.575 | 2.047 | 1.417 | 10 633 | 20 233 | 10 000 | 11 000 |
| RNA 6901 | 0.63 | 0.945 | 0.866 | 3 619 | 5 216 | 22 000 | 26 000 |
| RNA 6902 | 0.787 | 1.102 | 0.906 | 3 867 | 6 070 | 19 000 | 22 000 |
| Designation | Principal dimensions | Basic load ratings | Speed ratings | ||||
| dynamic | static | Reference speed | Limiting speed | ||||
| Fw[in] | D[in] | C[in] | C[lbf] | C0[lbf] | [r/min] | [r/min] | |
| RNA 6903 | 0.866 | 1.181 | 0.906 | 4 204 | 6 857 | 18 000 | 20 000 |
| RNA 6904 | 0.984 | 1.457 | 1.181 | 7 913 | 11 915 | 15 000 | 17 000 |
| RNA 6905 | 1.181 | 1.654 | 1.181 | 8 543 | 13 938 | 13 000 | 15 000 |
| RNA 6906 | 1.378 | 1.85 | 1.181 | 9 644 | 16 861 | 11 000 | 13 000 |
| RNA 6907 | 1.654 | 2.165 | 1.417 | 10 881 | 20 907 | 9 500 | 11 000 |
| RNA 6908 | 1.89 | 2.441 | 1.575 | 15 085 | 28 101 | 8 000 | 9 500 |
| RNA 6909 | 2.047 | 2.677 | 1.575 | 15 827 | 30 799 | 7 500 | 8 500 |
| RNA 6910 | 2.284 | 2.835 | 1.575 | 16 568 | 33 721 | 7 000 | 8 000 |
| RNA 6911 | 2.48 | 3.15 | 1.772 | 20 165 | 42 714 | 6 300 | 7 000 |
| RNA 6912 | 2.677 | 3.347 | 1.772 | 21 020 | 45 861 | 6 000 | 6 700 |
| RNA 6913 | 2.835 | 3.543 | 1.772 | 21 402 | 47 659 | 5 600 | 6 300 |
| RNA 6914 | 3.15 | 3.937 | 2.126 | 28 776 | 64 071 | 5 000 | 5 600 |
| RNA 6915 | 3.347 | 4.134 | 2.126 | 29 225 | 65 195 | 4 800 | 5 300 |
| RNA 6916 | 3.543 | 4.331 | 2.126 | 30 124 | 70 815 | 4 500 | 5 000 |
| RNA 6917 | 3.937 | 4.724 | 2.48 | 37 093 | 95 544 | 4 000 | 4 500 |
| RNA 6918 | 4.134 | 4.921 | 2.48 | 38 667 | 101 164 | 3 800 | 4 300 |
| RNA 6919 | 4.331 | 5.118 | 2.48 | 38 667 | 104 536 | 3 600 | 4 000 |
| RNAO 10X17X10 TN | 0.394 | 0.669 | 0.394 | 1 027 | 1 281 | 28 000 | 32 000 |
| RNAO 12X22X12 TN | 0.472 | 0.866 | 0.472 | 2 140 | 2 248 | 26 000 | 30 000 |
| RNAO 15X23X13 | 0.591 | 0.906 | 0.512 | 1 855 | 2 518 | 24 000 | 28 000 |
| RNAO 17X25X13 | 0.669 | 0.984 | 0.512 | 2 271 | 3 282 | 22 000 | 26 000 |
| RNAO 20X28X26 | 0.787 | 1.102 | 1.024 | 3 619 | 6 519 | 20 000 | 22 000 |
| RNAO 22X35X16 | 0.866 | 1.378 | 0.63 | 4 361 | 5 733 | 17 000 | 19 000 |
| RNAO 25X35X17 | 0.984 | 1.378 | 0.669 | 3 192 | 5 957 | 16 000 | 18 000 |
| RNAO 25X35X26 | 0.984 | 1.378 | 1.024 | 4 204 | 8 430 | 16 000 | 18 000 |
| RNAO 30X40X17 | 1.181 | 1.575 | 0.669 | 4 204 | 7 644 | 13 000 | 15 000 |
| RNAO 40X50X17 | 1.575 | 1.969 | 0.669 | 4 609 | 9 330 | 10 000 | 12 000 |
| RNAO 40X55X40 | 1.575 | 2.165 | 1.575 | 13 354 | 26 527 | 10 000 | 11 000 |
| RNAO 50X62X20 | 1.969 | 2.441 | 0.787 | 5 733 | 13 489 | 8 500 | 9 500 |
| RNAO 50X65X20 | 1.969 | 2.559 | 0.787 | 7 666 | 13 938 | 8 000 | 9 000 |
| Designation | Principal dimensions | Basic load ratings | Speed ratings | ||||
| dynamic | static | Reference speed | Limiting speed | ||||
| Fw[in] | D[in] | C[in] | C[lbf] | C0[lbf] | [r/min] | [r/min] | |
| RNAO 55X68X20 | 2.165 | 2.677 | 0.787 | 6 070 | 15 062 | 7 500 | 8 500 |
| RNAO 5X10X8 TN | 0.197 | 0.394 | 0.315 | 515 | 450 | 36 000 | 40 000 |
| RNAO 60X78X40 | 2.362 | 3.071 | 1.575 | 16 209 | 38 892 | 6 700 | 7 500 |
| RNAO 6X13X8 TN | 0.236 | 0.512 | 0.315 | 573 | 531 | 34 000 | 38 000 |
| RNAO 7X14X8 TN | 0.276 | 0.551 | 0.315 | 632 | 618 | 32 000 | 36 000 |
| RNAO 8X15X10 TN | 0.315 | 0.591 | 0.394 | 854 | 955 | 32 000 | 36 000 |
| Product Offering | The Granville stablized high precision EMQ bearings in 10 serie for below OE industries | |||
| Bore Size | 1mm and up to 50mm | |||
| Closures | Open Non-contact metallic shields Non-contact seals Contact seals | 1 EM bearings for automobiles 2 EM bearings for air con ditioners 3 EM bearings for industrial s ewing machine 4 EM bearings for textile machines 5 Bearings for electric tools 6 EM bearings for general machinery 7 EM bearings for washers 8 EM bearings for vacuum cleaners 9 Bearings for bank note counters 10 EM bearings for cleanout machines | ||
| Ring Material | 100Cr6 52100 Gcr15 chrome steel 440C stainless steel 420C stainless steel | |||
| Seal Material | Nitrile, Polyacrylic, Viton | |||
| Retainer | Riveted steel, Crimped steel, Crowned steel, Crowned nylon | |||
| Precision Class | ABEC-1 ABEC-3 ABEC-5 ABEC-7 | 01 Heat Treatment 02 Centerless Grinding Machine 11200 (most advanced) 03 Automatic P roduction Lines for Raceway 04 Automatic P roduction Lines for Raceway 05 Ultras onic Cleaning of Rings 06 Automatic Ass embly 07 Ultras onic Cleaning of Bearings 08 Automatic G reas ing, Seals Pres sing 09 Measurement of Bearing Vibration (Acceleration) 10 Measurement of Bearing Vibration (Speed) 11 Laser Marking 12Automatic Packing | ||
| Raidial Clearance | C2 C0 C3 C4 C5 | |||
| Heat Stabilization | S0 S1 S2 S3 | |||
| Quality Warranty | 9001:2008 | Advantage Manufacturing Processes and Quality Control | ||
| TS16949 | ||||
| Bearing Material | ||||
| Bearing Material | Chinese Standard | Equivalent | ||
| Material | AISI/SAE/ASTM | DIN | JIS | |
| chrome steel | Gcr15 | SA52100 | 100Cr6 | SUJ2 |
| stainless steel | 9cr18 | AISI400C | X102CrMo17 | SUS440C |
| cold rolled low carbon | ST14 | ASTM366 | 1623 | 3141 |
| Guide for Selection of Bearing Precision | ||||
| Application | ISO | |||
| Computer printers, copy machine-feed rollers, micro motors, stepping motors, fan motors, VCR pinch rollers | Normal Class 6 | |||
| High precision motors, hard disk drive motors, dental spindles, servo motors, encoders, VCR drum spindles, VCR capstan motors, polygonal mirror scanner motors | Class 5 Class 4 | |||
| High frequency spindles, gyro motors, gyro gimbals | Class 4 | |||
| Bearing Radial Clearance | |||||||
The clearance is the distance between outer ring, inner ring and rolling element. It is an important factor that has significant influence on noise, vibration, heat and fatigue life of a bearing. As such, it is critical to select the proper clearance considering the bearing fit, load, speed and operating temperature. When measuring the internal radial dlerance, the bearing is subject to a standard load in order to ensure full contact between all bearing comonents. Under such a loa d, the measured clearance is larger than the actual; this is due to elastic defoma tion. The difference is compensated by the factors given in the table below. | |||||||
| Normal Bore | d (mm) | Group | C2 | Normal | CN | Group | C3 |
| over | to | min | max | min | max | min | max |
| 2.5 | 6 | 0 | 7 | 2 | 13 | 8 | 23 |
| 6 | 10 | 0 | 7 | 2 | 13 | 8 | 23 |
| 10 | 18 | 0 | 9 | 3 | 18 | 11 | 25 |
| 18 | 24 | 0 | 10 | 5 | 20 | 13 | 28 |
| 24 | 30 | 1 | 11 | 5 | 20 | 13 | 28 |
| 30 | 40 | 1 | 11 | 6 | 20 | 15 | 33 |
| 40 | 50 | 1 | 11 | 6 | 23 | 18 | 36 |
| 50 | 65 | 1 | 15 | 8 | 28 | 23 | 43 |
| 65 | 80 | 1 | 15 | 10 | 30 | 25 | 51 |
| 80 | 100 | 1 | 18 | 12 | 36 | 30 | 58 |
| 100 | 120 | 2 | 20 | 15 | 41 | 36 | 66 |
| 120 | 140 | 2 | 23 | 18 | 48 | 41 | 81 |
| 140 | 160 | 2 | 23 | 8 | 53 | 46 | 91 |
| 160 | 180 | 2 | 25 | 20 | 61 | 53 | 102 |
You may like other series of needle roller bearings:
| Bearing Classification | Bearing No. | Designation | |||||||
| Drawn cup Needle Roller Bearings | Caged Type | HK BK HK….RS HK….2RS BK….RS | |||||||
| Full Complement Type | FFH MF MFH FY MFY | ||||||||
| Radial Needle and Cage Assemblies | Single Row Double Row | K/KS K/KKS KZK K.BK KNL | |||||||
| Needle Roller Bearings with Machined Rings | With Flanges | NK NKS RNA49 RNA48 NKI NKIS NA49 NA48 RNA69 RNA49….RS RNA49….2RS NA49….RS NA49….2RS | |||||||
| Without Flanges | RNAO NAO | ||||||||
| Aligning | RPNA PNA | ||||||||
| Yoke Type Track Rollers | Without Axial Guidance | STO STO….X RSTO….X RSTO….X | |||||||
| RNA22….2RS RNA22….2RSX NA22….2RS NA22….2RS NA22….2RSX | |||||||||
| With Axial Guidance | NATR NATR….PP NATV NATV….PP NUTR NUTR….X | ||||||||
| Bearing Classification | Bearing No. | Designation | |||||||
| Track Runner Bearings Cam Followers | With Axial Guidance | KR KRE KR….PP KRE..PP | |||||||
| KRV KRVE KRV..PP KRVE..PP | |||||||||
| NUKR NUKRE | |||||||||
| Combined Radial Axial Bearings | Needle Roller Angular Contact Ball | NKIA NKIB | |||||||
| Needle Roller Axial Cylindrical Roller | ZARN ZARN….L ZARF ZARF….L | ||||||||
| NKXR NKXR….Z | |||||||||
| Needle Roller Axial Ball | NX NX….Z | ||||||||
| NKX NKX….Z | |||||||||
| Inner Ring | IR LR | ||||||||
| Axial Bearing | Axial Needle Roller and Cage Assembly | AXK AXW | |||||||
| Axial Cylindrical Roller and Cage Assembly | K811 K812 K893 K874 K894 | ||||||||
| Axial Bearing Washers | Shaft Locating Washers | AS WS811 | |||||||
| Housing Locating Washers | GS811 | ||||||||
| Bearing Washers | LS | ||||||||
| Center Washers | ZS | ||||||||
| Q&A |
*Could you make a brief introduction to your all series of products?
Yes, we stock and sell factory-warrantied mechanical, electrical, and fluid-driven equipment such as bearings, belts, drives, motors, gears, couplings, clutches and brakes, linear motion, and hydraulics and pneumatics.
*How about your sales group?
At Granville, we understand a competent team makes your job easier, so we have established a group of employees who represent our resourcefulness and commitment to working hard to make sure your unique challenges are handled right the first time.
*What's your solutions for maximizing customers' benefits?
Our goal is to have your stock requirements on-hand when you need them. Through our storeroom surveys, in-depth communication, and usage analysis, we can reduce your organization's inventory cost, supply room costs, and turn-around time.
*What's your shipping document and documents of payment?
Our usual practice is FOB Shanghai & T/T, and we could adjust them for your requirements.
*What's the most convenient way to get your free quotation?
Please contact Stacy with your requirements (or Copy the contents of the table and fill in it with your information)
| RFQ for Free |
| Company Name: |
| Name: Mr./Mrs./Miss |
| Email: |
| Bearing No. : |
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