Alignment Needle Roller Bearings

Alignment needle roller bearings have an outer ring with a sphered (convex) outside surface. Two polymer seating rings with a sphered (concave) inside surface are encased in a drawn sheet steel sleeve and fitted over the outer ring. The alignment needle roller bearings structure allows any eventual shaft deflection to be absorbed, up to a maximum of 2°/3°. The main feature of alignment needle roller bearings is the self-aligning outer ring, thanks to a series of plastic support rings inserted between it and the drawn cup.

 

Our Part Number	Dimensions (mm)				Dynamic Load Rating	Static Load Rating	Limiting Speed	Weight
	d	D	C	F	N		rpm	g
PNA12/28	12	28	12	15	7800	8300	24000	0.037
PNA15/32	15	32	16	18	14100	17000	22500	0.062
PNA17/35	17	35	16	20	14600	18300	21900	0.073
PNA20/42	20	42	20	25	21300	32000	18800	0.136
PNA22/44	22	44	20	28	24800	35700	17000	0.145
PNA25/47	25	47	20	30	25500	37800	16100	0.157
PNA30/52	30	52	20	35	27500	43500	14100	0.181
PNA35/55	35	55	20	40	29500	49300	12500	0.177
PNA40/62	40	62	20	45	31000	55600	11300	0.227

 

Our Part Number	Dimensions (mm)				Dynamic Load Rating	Static Load Rating	Limiting Speed	Weight
	d	D	C	F	N		rpm	g
RPNA15/28	15	28	12	24.5	7800	7900	24100	0.032
RPNA18/32	18	32	16	27	14100	16200	22100	0.052
RPNA20/35	20	35	16	30.5	14600	17500	21100	0.062
RPNA25/42	25	42	20	36.5	21300	30500	17800	0.109
RPNA28/44	28	44	20	38.5	24800	34000	15800	0.112
RPNA30/47	30	47	20	42	25500	36000	14800	0.125
RPNA35/52	35	52	20	47.5	27500	41500	12900	0.131
RPNA40/55	40	55	20	50.5	29500	47000	11400	0.141
RPNA45/62	45	62	20	58	31000	53000	10200	0.176

Types of Alignment needle roller bearings

We supply alignment needle roller bearings with or without an inner ring. We provide RPNA and PNA Series alignment needle roller bearings.

Bearings with an inner ring

• should be used in applications where the shaft cannot be hardened and ground.
• Have limited permissible axial displacement of the shaft relative to the housing, which can be extended, if needed, by using a wide inner ring (Needle roller bearing components – Inner rings).

Bearings without an inner ring

• are excellent for compact bearing arrangements if the shaft can be hardened and ground.

Features of Alignment needle roller bearings

• Accommodate static misalignment
  Alignment needle roller bearings are self-aligning up to 3° of static misalignment.
• Low cross-section
  In applications with less space, alignment needle roller bearings offer a compact solution.
• High carrying capacity
  Owing to their large number of rollers, alignment needle roller bearings have a high load-carrying capacity.

Applications of Alignment needle roller bearings

Our alignment needle roller bearings are commonly used in the following applications:

• cranes and lifting equipment;
• gear reducers;
• pumps;
• marble working machinery;
• etc.

Company Information

We are a professional bearing exporter in China, producing many bearings in different sizes and sizes. We can provide you with excellent service in a wide range of bearings with world-class quality, such as deep groove ball bearings, spherical roller bearings, spherical ball/roller bearings, and cylindrical roller bearings, tapered roller bearings, angular contact Ball bearings, etc. Bearings can also provide OEM services according to customer requirements. We adhere to strict global standards, which is why we can provide you with a wide range of bearings of world-class quality. We have always adhered to the principle of “integrity-based, quality first, customer foremost.” We are ready to use our sincerity to serve every global customer for long-term and win-win cooperation.