Heavy Duty Support Track Rollers

NNTR series bearings are heavy-duty roller bearings with thick outer ring, converging or curved outer diameters, and a full complement of cylindrical rollers. These bearings are primarily used in sliding tracks on heavy machinery, such as conveyor tracks, where they can roll directly on the raceways and withstand heavy loads and shocks. NNTR bearings typically feature epoxy guides and sparse seals, making them particularly suitable for large-scale transmission equipment.

NNTR50X130X65-2ZL-RSU50-130

NNTR55X140X70-2ZL-RSU55-140

NNT60X150X75-2ZL-RSU60-150

NNTR65X160X75-2ZL-RSU65-160

NNTR70X180X85-2ZL-RSU70-180

NNTR80X200X90-2ZL-RSU80-200

NNTR90X220X100-2ZL-RSU90-220

Product Detail

product detail

Heavy Support Rollers:mm
Designation		Boundary Dimensions			Load Rating (KN)		Lubrication Hole	Speed Ratings (rpm)	r1 （min)	r ( min )	Secondary Dimensions	Mass(Kg)
Designation		d	D	B	Dyn.Cr	Stat.Cor	Lubrication Hole	ng oil	r1 （min)	r ( min )	C	Mass(Kg)
NNTR50X130X65-2ZL	RSU50-130	50	130	65	182.1	238.90	3	1100	2	3	63	5.2
NNTR55X140X70-2ZL	RSU55-140	55	140	70	209.1	290.00	3	850	2	3	68	6.4
NNT60X150X75-2ZL	RSU60-150	60	150	75	242.2	334.70	3	800	2	3	73	7.8
NNTR65X160X75-2ZL	RSU65-160	65	160	75	260.2	351.70	3	700	2	3	73	8.8
NNTR70X180X85-2ZL	RSU70-180	70	180	85	326.7	472.8	3	600	2	3	83	13
NNTR80X200X90-2ZL	RSU80-200	80	200	90	388.8	552.80	3	500	2	4	88	16.8
NNTR90X220X100-2ZL	RSU90-220	90	220	100	469.7	697.70	3	400	2.5	4	98	22.5
NNTR100X240X105-2ZL	RSU100-240	100	240	105	522.9	804.70	6	340	2.5	4	103	28
NNTR110X260X115-2ZL	RSU110-260	110	260	115	633.2	983.70	6	300	2.5	4	113	35.6
NNTR120X290X135-2ZL	RSU120-290	120	290	135	845.1	1323.4	6	260	3	4	133	52.8
NNTR130X310X146-2ZL	RSU130-310	130	310	146	963.8	1524.1	6	240	3	5	144	65.2