Aligning Heavy Duty Needle Roller Bearings With or Without Inner Ring

Aligning Heavy Duty Needle Roller Bearings With or Without Inner Ring are designed to handle high radial loads and misalignment. With a self-aligning feature, they can compensate for shaft deflections and housing misalignments. They are available with or without inner rings and can be mounted separately or directly on the shaft. They are commonly used in heavy-duty applications such as construction equipment, mining machinery, and agricultural equipment.

Technial Specification

Table 1

Shaft Diameter	Bearing Designation	Mass Approx	Boundary Dimensions						Basic Load Rating		Limiting Speed
			D	FW	D	B	D1	S	Cr Dynamic	Cor Static	Oil
			D	FW	D	B	D1	S	Cr Dynamic	Cor Static	Oil	mm	g	mm	N	rpm
without inner ring
12		PNA12/28	37	12	15	28	12	24.5	0.5	4660	5700	24000
15	PNA15/32	62	15	18	32	16	27	0.5	9800	14000	22000
17	PNA17/35	73	17	20	35	16	30.5	0.5	10500	15500	21000
20	PNA20/42	136	20	25	42	20	36.5	0.5	14900	27800	18000
22	PNA22/44	145	22	28	44	20	38.5	0.5	20500	31900	16000
25	PNA25/47	157	25	30	47	20	42	0.5	20980	33500	15000
30	PNA30/52	181	30	35	52	20	47.5	0.5	21500	39600	13000
35	PNA35/55	177	35	40	55	20	50.5	0.5	24000	44700	11000
40	PNA40/62	227	40	45	62	20	58	0.5	24800	50900	10000
15	RPNA15/28	32	0	15	28	12	24.5	0	4660	5700	24000
18	RPNA18/32	52	0	18	32	16	27	0	9800	14000	22000
20	RPNA20/35	62	0	20	35	16	30.5	0	10500	15500	21000
25	RPNA25/42	109	0	25	42	20	36.5	0	14900	27800	18000
28	RPNA28/44	112	0	28	44	20	38.5	0	20500	31900	16000
30	RPNA30/47	125	0	30	47	20	42	0	20980	33500	15000
35	RPNA35/52	131	0	35	52	20	47.5	0	21500	39600	13000
40	RPNA40/55	141	0	40	55	20	50.5	0	24000	44700	11000
45	RPNA45/62	176	0	45	62	20	58	0	24800	50900	10000

Advantages

Aligning Heavy Duty Needle Roller Bearings, with or without inner ring, offer several advantages:

1. Self-aligning capability: These bearings have a unique design that allows them to self-align, compensating for misalignment in the application.

2. High load capacity: With a larger diameter than standard needle roller bearings, these bearings can handle higher radial loads.

3. Durable construction: Made with high-quality materials and precision manufacturing, these bearings are built to withstand heavy loads and frequent use.

4. Versatile application: They can be used in a wide range of industrial applications, including heavy machinery, automotive, and agricultural equipment.

5. Space-saving design: The compact design of these bearings makes them an excellent option for applications with limited space.

6. Cost-effective solution: With their high load capacity and long lifespan, aligning heavy-duty needle roller bearings offer a cost-effective solution for demanding applications.