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A needle roller bearing is a special type of roller bearing which uses long, thin cylindrical rollers resembling needles. Ordinary roller bearings' rollers are only slightly longer than their diameter, but needle bearings typically have rollers that are at least four times longer than their diameter.Like all bearings, they are used to reduce the friction of a rotating surface.

Compared to ball bearings and ordinary roller bearings, needle bearings have a greater surface area in contact with the races, so they can support a greater load. They are also thinner, so they require less clearance between the axle and the surrounding structure.

Needle bearings are heavily used in automobile components such as rocker arm pivots, pumps, compressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each U joint) and often more if it is particularly long, or operates on steep slopes.

Bearing Number	Bore Dia	Outer DIa	Width	Size
Toyana NA4852 Rodamientos De Agujas	80	50	100 mm	98 mm
Toyana NA4901 Rodamientos De Agujas	1.41	1.08	81 mm	188 N/micron
Toyana KZK30X37X16 Rodamientos De Agujas	19x25.400x15.800	25,400	15,800 mm	19,000 mm
Toyana K110X117X25 Rodamientos De Agujas	150 mm	150	SNR	20
Toyana K03x06x07 Rodamientos De Agujas	76,000	35,800 mm	PK66X76X35.8	NTN
Toyana KZK18x24x13 Rodamientos De Agujas	540 mm	360 mm	N3072	360
Toyana RNA4907-2RS Rodamientos De Agujas	655 mm	643 mm	56	560x655x56
Toyana KZK35X42X20 Rodamientos De Agujas	2 Kg	39,6875 mm	7/16	56,3 mm
Toyana HK6012 Rodamientos De Agujas	30	19 mm	SIGMA	30 mm
Toyana NA6910-2RS Rodamientos De Agujas	1.5 mm	ABEC 3 (ISO Cla	89.4 mm	108 mm
Toyana HK4512 Rodamientos De Agujas	68,262	22,225 mm	31,75	22,225 mm
Toyana K25x31x21 Rodamientos De Agujas	0,15 mm	NTN	0,276 kN	9,8 mm