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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
NKI22/20-XL 22 mm 34 mm 20 mm 4946 lbf 7194 lbf 17.2 65.4 g
NKI22/16-XL 22 mm 34 mm 16 mm 3889 lbf 5305 lbf 17.2 52 g
NK22/20-XL 22 mm 30 mm 20 mm 4496 lbf 607 lbf 20 37 g
NK22/16-XL 22 mm 30 mm 16 mm 3552 lbf 4474 lbf 20 30 g
NKS22-XL 22 mm 35 mm 20 mm 6182 lbf 6295 lbf 18.5 61.5 g
NA69/22-XL 22 mm 39 mm 30 mm 9442 lbf 12364 lbf 15.3 150 g
NA49/22-XL 22 mm 39 mm 17 mm 5845 lbf 6632 lbf 15.3 80 g
NK21/20-XL 21 mm 29 mm 20 mm 4339 lbf 5733 lbf 20.6 35.2 g
NK21/16-XL 21 mm 29 mm 16 mm 3417 lbf 4204 lbf 20.6 28.1 g
RNAO20X32X12-XL 20 mm 32 mm 12 mm 3395 lbf 3642 lbf 20.9 38 g
RNAO20X28X26-ZW-ASR1-XL 20 mm 28 mm 26 mm 4271 lbf 6407 lbf 21.3 50 g
RNAO20X28X13-XL 20 mm 28 mm 13 mm 2495 lbf 3215 lbf 21.3 25 g
RNA6902-XL 20 mm 28 mm 23 mm 4384 lbf 5733 lbf 21.1 39.7 g
RNA4902-XL 20 mm 28 mm 13 mm 2698 lbf 3057 lbf 21.1 21.7 g
RNA4902-RSR-XL 20 mm 28 mm 13 mm 2181 lbf 2316 lbf 12.6 21.5 g
RNA4902-2RSR-XL 20 mm 28 mm 13 mm 2181 lbf 2316 lbf 12.6 21.5 g
NKI20/20-XL 20 mm 32 mm 20 mm 4811 lbf 6857 lbf 18.5 61 g
NKI20/16-XL 20 mm 32 mm 16 mm 3799 lbf 5013 lbf 18.5 49 g
NKIS20-XL 20 mm 42 mm 20 mm 7306 lbf 8206 lbf 15.1 129 g
NK20/20-XL 20 mm 28 mm 20 mm 4181 lbf 535 lbf 21.1 33.9 g
NK20/16-XL 20 mm 28 mm 16 mm 3282 lbf 3934 lbf 21.1 27 g
NK20/16-D-XL 20 mm 28 mm 16 mm 4159 lbf 5373 lbf 21.1 28.4 g
NKS20-XL 20 mm 32 mm 20 mm 5845 lbf 562 lbf 20 48.7 g
NAO20X37X16-XL 20 mm 37 mm 16 mm 5283 lbf 6182 lbf 17.2 82 g
NAO20X35X17-XL 20 mm 35 mm 17 mm 3777 lbf 5845 lbf 18.1 76 g
NA6904-XL 20 mm 37 mm 30 mm 9105 lbf 11465 lbf 16.9 141 g
NA4904-XL 20 mm 37 mm 17 mm 5328 lbf 5733 lbf 16.9 75.2 g
NA4904-RSR-XL 20 mm 37 mm 18 mm 4384 lbf 4474 lbf 10.1 80 g
NA4904-2RSR-XL 20 mm 37 mm 18 mm 4384 lbf 4474 lbf 10.1 80 g
NK19/20-XL 19 mm 27 mm 20 mm 4204 lbf 5305 lbf 21.6 32.2 g
NK19/16-XL 19 mm 27 mm 16 mm 3305 lbf 3912 lbf 21.6 26.1 g
RNAO18X30X24-ZW-ASR1-XL 18 mm 30 mm 24 mm 5575 lbf 6744 lbf 21.8 69 g
NK18/20-XL 18 mm 26 mm 20 mm 4024 lbf 4946 lbf 22.1 31.4 g
NK18/16-XL 18 mm 26 mm 16 mm 317 lbf 3642 lbf 22.1 24.9 g
RNAO17X25X13-XL 17 mm 25 mm 13 mm 263 lbf 3282 lbf 22.9 22 g
NKI17/20-XL 17 mm 29 mm 20 mm 4339 lbf 5733 lbf 20.6 53.4 g
NKI17/16-XL 17 mm 29 mm 16 mm 3417 lbf 4204 lbf 20.6 42.4 g
NKIS17-XL 17 mm 37 mm 20 mm 6632 lbf 6969 lbf 17.2 98 g
NK17/20-XL 17 mm 25 mm 20 mm 3844 lbf 4586 lbf 22.6 29.8 g
NK17/16-XL 17 mm 25 mm 16 mm 3035 lbf 3372 lbf 22.6 23.7 g