NATR/NATV/PP Needle Roller Bearing

The NATR/NATV…PP needle roller bearing is a type of track roller bearing with a thick outer ring and full complement of needle rollers. It has two integral flanges on the outer ring and is pre-greased for easy installation. The NATR series features a cylindrical profile and the NATV series has a crowned profile for improved load distribution. Both series are available with or without a sealing washer. These bearings are suitable for applications such as cam followers, conveyor systems, and track rollers for various types of equipment.

Technial Specification

Table 1

Bearing Designation and mass approx				Borndary Dimensions					Basic Load Rating				Limiting Speed
Without seal	Mass	Sealed	Mass	d	D	B	C	d1	Cr Dynamic	Cor Static			Grease
	Mass		Mass	d	D	B	C	d1	Cr Dynamic	Cor Static	Cw	Cow	Grease
	g		g	mm					N				rpm
NATR 5	14	NATR 5 PP	14	5	16	12	11	12	3050	3000	2050	2400	22000
NATV 5	15	NATV 5 PP	15	5	16	12	11	12	4500	6300	3680	4300	8500
NATR 6	20	NATR 6 PP	20	6	19	12	11	14	3600	3650	2450	2850	20000
NATV 6	21	NATV 6 PP	21	6	19	12	11	14	5700	8700	4600	6750	7000
NATR 8	41	NATR 8 PP	41	8	24	15	14	19	4500	5400	3900	4500	5000
NATV 8	42	NATV 8 PP	42	8	24	15	14	19	8600	12000	6700	9800	5500
NATR 10	64	NATR 10 PP	64	10	30	15	14	23	6100	7800	4500	6900	11000
NATV 10	65	NATV 10 PP	65	10	30	15	14	23	10900	17000	7600	11800	4500
NATR 12	71	NATR 12 PP	71	12	32	15	14	25	6600	9800	4660	7000	9000
NATV 12	72	NATV 12 PP	72	12	32	15	14	25	11800	19000	7800	13000	3900
NATR 15	103	NATR 15 PP	103	15	35	19	18	27	10500	17500	7800	11500	7000
NATV 15	105	NATV 15 PP	105	15	35	19	18	27	16000	32500	10200	20500	3400
NATR 17	144	NATR 17 PP	144	17	40	21	20	32	11800	19400	9500	13500	6000
NATV 17	152	NATV 17 PP	152	17	40	21	20	32	19600	37000	1200	23000	2900
NATR 20	246	NATR 20 PP	246	20	47	25	24	37	17500	29800	13500	22500	4900
NATV 20	254	NATV 20 PP	254	20	47	25	24	37	25800	57000	19000	39500	2600
NATR 25	275	NATR 25 PP	275	25	52	25	24	42	19500	36500	13400	23500	3600
NATV 25	285	NATV 25 PP	285	25	52	25	24	42	29000	69600	19800	40900	2100
NATR 30	470	NATR 30 PP	470	30	62	29	28	51	31000	57500	20900	35500	2600
NATV 30	481	NATV 30 PP	481	30	62	29	28	51	45500	104000	27800	60900	1700
NATR 35	635	NATR 35 PP	635	35	72	29	28	58	34500	67500	22500	41000	2000
NATV 35	647	NATV 35 PP	647	35	72	29	28	58	50800	109500	30900	70800	1400
NATR 40	805	NATR 40 PP	805	40	80	32	30	66	47000	91500	30900	56500	1700
NATV 40	890	NATV 40 PP	890	40	80	32	30	66	64000	139000	39800	87800	1300
NATR 45	910	NATR 45 PP	910	45	85	32	30	72	49100	98000	30600	56900	1500
NATR 50	960	NATR 50 PP	960	50	90	32	30	76	50500	10600	30600	57500	1300
NATV 50	990	NATV 50 PP	990	50	90	32	30	76	69500	187000	38700	90900	1000

Advantages

The NATR/NATV…PP Needle Roller Bearing has the following advantages:

1. They are compact and can accommodate high loads and high speeds.
2. They have a crowned outer ring that helps to compensate for misalignment and reduces stress on the rollers.
3. They are equipped with a full complement of needle rollers, which increases their radial load-carrying capacity.
4. They have a polyamide plastic seal that prevents contamination and retains lubrication.
5. They have a hardened outer ring that increases their durability and extends their service life.