Miniature ball bearing comparison
Single row radial deep groove ball bearings
Metric dimensions
d | D | B | Bf | Designation | Designation | B | Bf | Li | Lo | r max. | h min. | Balls n x Ø | Load ratings [1] | |
mm | mm | mm | mm | open ball bearings | closed ball bearings | Designation DIN | Designation DIN | mm | mm | mm | mm | mm | dynamic C N | static Co N |
1 | 3 | 1 | UL 103X | 618/1 | - | 1.60 | 2.40 | 0.08 | 0.3 | 7 x 0.500 | 45 | 9 | ||
1.5 | 4 | 1.2 | 2 | UL 154X | ULZ 154X | 618/1.5 | 638/1.5 | 2.12 | 3.38 | 0.1 | 0.3 | 6 x 0.794 | 87 | 17 |
1.5 | 5 | 2 | 2 | R 1550X | RX/RF 155X | 619/1.5 | 619/1.5 | 2.68 | 3.97 | 0.15 | 0.4 | 7 x 0.794 | 100 | 21 |
2 | 4 | 1.2 | UL 204X | 617/2 | - | 2.48 | 3.55 | 0.05 | 0.25 | 7 x 0.700 | 84 | 18 | ||
2 | 5 | 1.5 | 2.3 | UL 205X | ULZ 205X | 618/2 | 638/2 | 2.86 | 4.14 | 0.1 | 0.4 | 7 x 0.794 | 101 | 22 |
2 | 6 | 2.3 | 2.3 | R 2060X | RX/RF 206X | 619/2 | 619/2 | 3.16 | 4.75 | 0.15 | 0.5 | 7 x 1.000 | 165 | 38 |
2.5 | 5 | 1.5 | UL 255X | 617/2.5 | - | 3.15 | 4.40 | 0.08 | 0.3 | 8 x 0.794 | 111 | 25 | ||
2.5 | 6 | 1.8 | 2.6 | UL 256X | ULZ 256X | 618/2.5 | 638/2.5 | 3.54 | 5.02 | 0.15 | 0.5 | 7 x 1.000 | 167 | 40 |
2.5 | 7 | 2.5 | R 2570X | RV 257X | 619/2.5 | - | 3.95 | 5.53 | 0.15 | 0.6 | 8 x 1.000 | 184 | 47 | |
2.5 | 8 | 2.8 | 2.8 | R 2580X | RF 258X | 60/2.5 | 60/2.5 | 4.22 | 6.23 | 0.15 | 0.6 | 7 x 1.250 | 258 | 65 |
3 | 6 | 2 | 2.5 | UL 306X | ULZ 306X | 617/3 | - | 3.75 | 5.26 | 0.08 | 0.35 | 8 x 1.000 | 183 | 46 |
3 | 6 | 2 | ULV 306X | 617/3 | - | 3.75 | 5.26 | 0.08 | 0.35 | 8 x 1.000 | 183 | 46 | ||
3 | 7 | 2 | 3 | UL 307X | ULZ 307X | 618/3 | 638/3 | 4.14 | 5.85 | 0.15 | 0.5 | 8 x 1.150 | 247 | 66 |
3 | 8 | 3 | 4 | R 3080X | RF 308X | 619/3 | 639/3 | 4.40 | 6.61 | 0.15 | 0.6 | 7 x 1.450 | 335 | 86 |
3 | 8 | 3 | RV 308X | 619/3 | - | 4.40 | 6.61 | 0.15 | 0.6 | 7x 1.450 | 335 | 86 | ||
3 | 10 | 4 | 4 | R 3100X | RX/RF 310X | 623 | 623 | 5.33 | 7.87 | 0.15 | 0.7 | 7 x 1.588 | 407 | 110 |
4 | 7 | 2 | 2.5 | UL 407X | ULZ 407X | 617/4 | - | 4.75 | 6.25 | 0.08 | 0.35 | 9 x 1.000 | 200 | 55 |
4 | 7 | 2 | UL 407X | 617/4 | - | 4.75 | 6.25 | 0.08 | 0.35 | 9 x 1.000 | 200 | 55 | ||
4 | 9 | 2.5 | 4 | UL 409X | ULZ 409X | 618/4 | 638/4 | 5.33 | 7.87 | 0.15 | 0.5 | 7 x 1.588 | 407 | 110 |
4 | 10 | 4 | RX/RF 410X | - | - | 5.33 | 7.87 | 0.15 | 0.7 | 7 x 1.588 | 407 | 110 | ||
4 | 11 | 4 | R 4110X | RV 411X | 619/4 | - | 5.90 | 9.10 | 0.15 | 0.7 | 6 x 2.100 | 667 | 189 | |
4 | 13 | 5 | 5 | R 4130X | RX/RF 413X | 624 | 624 | 6.65 | 10.35 | 0.2 | 0.8 | 6 x 2.381 | 920 | 290 |
4 | 16 | 5 | R 4160x | RV 416X | 634 | - | 8.00 | 13.08 | 0.3 | 1 | 6 x 3.175 | 1192 | 329 | |
5 | 8 | 2 | 3 | UL 508X | ULZ 508X | 617/5 | 637/5 | 5.75 | 7.25 | 0.08 | 0.4 | 11 x 1.000 | 226 | 71 |
5 | 8 | 2 | ULV 508X | 617/5 | - | 5.75 | 7.25 | 0.08 | 0.4 | 11 x 1.000 | 226 | 71 | ||
5 | 11 | 3 | 5 | UL 511X | ULZ 511X | 618/5 | 638/5 | 6.69 | 9.32 | 0.15 | 0.7 | 8 x 1.750 | 524 | 152 |
5 | 13 | 4 | R 5130X | RV 513X | 619/5 | - | 7.40 | 11.00 | 0.15 | 0.7 | 7 x 2.381 | 815 | 231 | |
5 | 16 | 5 | R 5160X | RV 516X | 625 | - | 8.00 | 13.08 | 0.3 | 1 | 6 x 3.175 | 1192 | 329 | |
5 | 19 | 6 | R 5190X | RV 519X | 635 | - | 9.75 | 14.84 | 0.3 | 1 | 7 x 3.175 | 1377 | 415 | |
6 | 10 | 2.5 | 3 | UL 610X | ULZ 610X | 617/6 | - | 7.00 | 9.00 | 0.1 | 0.45 | 10 x 1.250 | 330 | 107 |
6 | 13 | 3.5 | 5 | UL 613X | ULZ 613X | 618/6 | 628/6 | 7.90 | 11.11 | 0.15 | 0.7 | 8 x 2.100 | 726 | 219 |
6 | 15 | 5 | R 6150X | RV 615X | 619/6 | - | 8.79 | 12.24 | 0.15 | 0.8 | 7 x 2.500 | 1027 | 327 | |
6 | 19 | 6 | R 6190X | RV 619X | 626 | - | 9.75 | 14.84 | 0.3 | 1 | 7 x 3.175 | 1377 | 415 | |
7 | 11 | 2.5 | 3 | UL 711X | ULZ 711X | 617/7 | - | 8.00 | 10.00 | 0.1 | 0.45 | 12 x 1.250 | 368 | 132 |
7 | 14 | 3.5 | 5 | UL 714X | ULZ 714X | 618/7 | 628/7 | 8.90 | 12.11 | 0.15 | 0.7 | 8 x 2.100 | 731 | 226 |
7 | 19 | 6 | R 7190X | RV 719X | 607 | - | 9.75 | 14.84 | 0.3 | 1 | 7 x 3.175 | 1377 | 415 | |
7 | 22 | 7 | R 7220X | RV 722X | 627 | - | 11.75 | 18.05 | 0.3 | 1 | 7 x 3.969 | 2154 | 698 | |
8 | 12 | 2.5 | UL 812X | 617/8 | - | 9.00 | 11.00 | 0.1 | 0.5 | 13 x 1.250 | 382 | 146 | ||
8 | 16 | 4 | UL 816X | 618/8 | - | 10.20 | 13.81 | 0.2 | 0.8 | 9 x 2.381 | 992 | 329 | ||
8 | 16 | 5 | ULZT 816X | - | - | 10.20 | 13.81 | 0.2 | 0.8 | 9 x 2.381 | 992 | 329 | ||
8 | 16 | 6 | ULZ 816X | - | 638/8 | 10.20 | 13.81 | 0.2 | 0.8 | 9 x 2.381 | 992 | 329 | ||
8 | 22 | 7 | R 8220X | RV 822X | 608 | - | 11.75 | 18.05 | 0.3 | 1 | 7 x 3.969 | 2154 | 698 | |
9 | 14 | 3 | UL 914X | 617/9 | - | 10.23 | 12.77 | 0.1 | 0.6 | 12 x 1.588 | 581 | 223 | ||
9 | 17 | 4 | 6 | UL 917X | ULZ 917X | 618/9 | 638/9 | 11.20 | 14.81 | 0.2 | 0.8 | 10 x 2.381 | 1065 | 374 |
10 | 15 | 3 | UL 1015X | 61700 | - | 11.23 | 13.77 | 0.1 | 0.6 | 13 x 1.588 | 606 | 246 | ||
10 | 19 | 5 | UL 1019X | ULV 1019X | 61800 | - | 12.32 | 16.68 | 0.3 | 1 | 9 x 2.778 | 1315 | 455 | |
10 | 19 | 7 | ULZ 1019X | - | 63800 | 12.32 | 16.68 | 0.3 | 1 | 9 x 2.778 | 1315 | 455 |