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Heavy Duty Needle Roller Bearings

ZHIO® Needle roller bearings are roller bearings with cylindrical rollers that are small in diameter but long in length (L/D≥2.5). ZHIO® Needle roller bearings have a high radial load carrying capacity. And since they have a low cross section, needle roller bearings are extremely suitable for bearing applications where the radial space is limited.

ZHIO® offers a wide range of needle roller bearings including needle roller & cage assemblies, drawn cup and solid needle roller bearings. They can also be specified as cam followers and track roller bearings by applications. The major application markets include automotive, consumer product and general industrial goods.

Dimension(mm) Radial Load
Model inside Outside Height Dynamic Static Maximum Speed Weight
NKS65-XL 65 mm 85 mm 28 mm 16861 lbf 24279 lbf 6.9 356 g
NA6913-ZW-XL 65 mm 90 mm 45 mm 24279 lbf 44512 lbf 6.3 833 g
NA4913-XL 65 mm 90 mm 25 mm 15512 lbf 25179 lbf 6.3 456 g
RNA6911-ZW-XL 63 mm 80 mm 45 mm 22931 lbf 39566 lbf 7.2 470 g
RNA4911-XL 63 mm 80 mm 25 mm 14613 lbf 22481 lbf 7.2 255 g
RNAO60X78X40-ZW-ASR1-XL 60 mm 78 mm 40 mm 19109 lbf 38442 lbf 7.7 435 g
RNAO60X78X20-XL 60 mm 78 mm 20 mm 11128 lbf 19109 lbf 7.7 255 g
NKI60/35-XL 60 mm 82 mm 35 mm 15737 lbf 31248 lbf 6.8 553 g
NKI60/25-XL 60 mm 82 mm 25 mm 11128 lbf 20008 lbf 6.8 394 g
NKIS60-XL 60 mm 90 mm 28 mm 1731 lbf 25403 lbf 6.4 560 g
NK60/35-XL 60 mm 72 mm 35 mm 14163 lbf 29225 lbf 7.7 258 g
NK60/25-TV-XL 60 mm 72 mm 25 mm 11915 lbf 23155 lbf 7.7 170 g
NKS60-XL 60 mm 80 mm 28 mm 15961 lbf 22031 lbf 7.4 335 g
NA6912-ZW-XL 60 mm 85 mm 45 mm 2383 lbf 42939 lbf 6.7 808 g
NA4912-XL 60 mm 85 mm 25 mm 15287 lbf 24279 lbf 6.7 426 g
RNA6910-ZW-XL 58 mm 72 mm 40 mm 18434 lbf 31248 lbf 7.8 310 g
RNA4910-XL 58 mm 72 mm 22 mm 11915 lbf 17985 lbf 7.8 163 g
RNA4910-RSR-XL 58 mm 72 mm 22 mm 10116 lbf 14388 lbf 4.7 160 g
RNA4910-2RSR-XL 58 mm 72 mm 22 mm 10116 lbf 14388 lbf 4.7 160 g
RNAO55X68X20-XL 55 mm 68 mm 20 mm 7194 lbf 14837 lbf 8.5 166 g
NKI55/35-XL 55 mm 72 mm 35 mm 14163 lbf 29225 lbf 7.7 379 g
NKI55/25-TW-XL 55 mm 72 mm 25 mm 11915 lbf 23155 lbf 7.7 255 g
NKI55/25-TV-XL 55 mm 72 mm 25 mm 11915 lbf 23155 lbf 7.7 255 g
NKIS55-XL 55 mm 85 mm 28 mm 16861 lbf 24279 lbf 6.9 558 g
NK55/35-XL 55 mm 68 mm 35 mm 13489 lbf 26527 lbf 8.4 250 g
NK55/25-XL 55 mm 68 mm 25 mm 10229 lbf 18434 lbf 8.4 180 g
NK55/25-D-XL 55 mm 68 mm 25 mm 12814 lbf 24954 lbf 8.4 195 g
NKS55-XL 55 mm 72 mm 22 mm 11465 lbf 16636 lbf 8.2 221 g
NA6911-ZW-XL 55 mm 80 mm 45 mm 22931 lbf 39566 lbf 7.2 780 g
NA4911-XL 55 mm 80 mm 25 mm 14613 lbf 22481 lbf 7.2 393 g
RNA6909-ZW-XL 52 mm 68 mm 40 mm 1776 lbf 28551 lbf 8.6 338 g
RNA4909-XL 52 mm 68 mm 22 mm 11465 lbf 16411 lbf 8.6 182 g
RNA4909-RSR-XL 52 mm 68 mm 22 mm 9667 lbf 13264 lbf 5.2 157 g
RNA4909-2RSR-XL 52 mm 68 mm 22 mm 9667 lbf 13264 lbf 5.2 157 g
RNAO50X65X40-ZW-ASR1-XL 50 mm 65 mm 40 mm 15512 lbf 27876 lbf 9.1 355 g
RNAO50X65X20-XL 50 mm 65 mm 20 mm 9105 lbf 13938 lbf 9.1 168 g
RNAO50X62X20-XL 50 mm 62 mm 20 mm 6744 lbf 13489 lbf 9.3 140 g
NKI50/35-XL 50 mm 68 mm 35 mm 13489 lbf 26527 lbf 8.4 379 g
NKI50/25-XL 50 mm 68 mm 25 mm 10229 lbf 18434 lbf 8.4 270 g
NKIS50-XL 50 mm 80 mm 28 mm 15961 lbf 22031 lbf 7.4 518 g