Needle Bearings

Posted by admin

On 2021-09-22

Comments Off

Needle Bearings Structure:

Needle bearings are roller bearings with cylindrical rollers. The rollers are thin and long relative to their diameter. This kind of roller is called a needle roller. Although the bearing has a small cross-section, the bearing still has a high load bearing capacity. Needle bearing is equipped with thin and long rollers, so the radial structure is compact, and its inner diameter and load capacity are the same as other types of bearings.
Needle roller bearings are especially suitable for supporting structures with limited radial installation dimensions.
Neelde roller bearings are widely used in variable speed devices, for example, automobiles, tillers, machine tools, etc.

Features:

1. The outer ring of the drawn cup needle roller bearing adopts interference static fit with the bearing box, and does not require an axial fixing device.
It can ensure its flexible working performance even under high-speed and heavy-load conditions.
2. The advanced principle of drawn cup needle roller bearings is that the body has a large sealing grease volume, which can be left without lubrication for a long time.
Due to the high temperature lubrication interval, it can ensure long-term operation without worry.
3. Occupies a small space, which is conducive to the compact design of the machine.
Drawn cup needle roller bearings generally do not need an inner ring, because of its reasonable design, IR type inner ring can usually be used.
4. Drawn cup needle roller bearings are divided into two ends of the bearing perforated (HK type) and one end of the bearing closed type (BK type).
5. One end of the sealed type bearing of the drawn cup needle roller bearing is sealed, which is suitable for the shaft end and can withstand small axial free force.

Common Types of Needle Roller Bearings:

HK	Perforated drawn cup needle roller bearings
HK…RS	Perforated drawn cup needle roller bearings, single seal
HK…2RS	Perforated drawn cup needle roller bearings, double seal
BK	Sealed drawn cup needle roller bearings
BK…RS	Sealed drawn cup needle roller bearings, single seal
MF	Sealed drawn cup needle roller bearings with full pointed ends
MFY	Sealed drawn cup needle roller bearings, flat head full needle type
F	Perforated drawn cup needle roller bearings, full-point needle type
FY	Perforated drawn cup needle roller bearings, flat head full needle type
SCE	Perforated drawn cup needle roller bearings, inch series
BCE	Sealed drawn cup needle roller bearings, inch series

Drawn Cup Needle Roller Bearing Size Chart:

Shaft Dia (mm)	New Code	Old Code	Mass(g)	Fw(mm)	D(mm)	C(mm)
4	HK0408TN	37941/4	1.6	4	8	8
5	HK0509	47941/5	2	5	9	9
6	HK0607	27941/6	1.8	6	10	7
	HK0608	37941/6	2.1	6	10	8
	HK0609	47941/6	2.2	6	10	98
	HK06×12×08		2.5	6	12	8
7	HK0709	47941/7	2.3	7	11	9
8	HK0808	37941/8	2.7	8	12	8
	HK0810	57941/8	3	8	12	10
	HK08×14×10	27942/8	5.35	8	14	10
	HK08×14×12	37942/8	6.6	8	14	12
9	HK0908	37941/9	3	9	13	8
	HK0910	57941/9	4	9	13	10
	HK0912	67941/9	4.6	9	13	12
	HK09×15×10	27942/9	5.6	9	15	10
10	HK1010	57941/10	4.1	10	14	10
	HK1012	67941/10	4.8	10	14	12
	HK1015	–	6	10	14	15
12	HK1208	37941/12	3.3	12	16	8
	HK1210	57941/12	4.6	12	16	10
	HK1212	67941/12	5.6	12	16	12
13	HK1312	–	8.9	13	19	12
14	HK1410	27941/14	8.3	14	20	10
	HK1412	37941/14	10.5	14	20	12
	HK1416	57941/14	13.9	14	20	16
15	HK15×20×12	7941/15	8.4	15	20	12
	HK15×20×16	7942/15	11.4	15	20	16
	HK15×20×20	7943/15	13.8	15	20	20
	HK1512	37941/15	11.1	15	21	12
	HK1514	47941/15	12.7	15	21	14
	HK1515	–	14.2	15	21	15
	HK1516	57941/15	15	15	21	16
	HK1522	SZ-439	20.4	15	21	22
	HK15×22×12	7948/15	12.5	15	22	12
16	HK16×21×09	–	7.5	16	21	9
	HK1612	37941/16	11.7	16	22	12
	HK1614	47941/16	14.4	16	22	14
	HK1616	57941/16	15.8	16	22	16
	HK1617	SZ-435	18	16	22	17
	HK1622	87941/16	21.7	16	22	22
17	HK1712	37941/17	12.2	17	23	12
	HK1714	7941/17	14	17	23	14
	HK1716	57941/17	15.9	17	23	16
	HK1718	7942/17	19	17	23	18
18	HK1812	37941/18	13.1	18	24	12
18	HK1816	57941/18	17.5	18	24	16
19	HK19×27×16	TA1916	23	19	27	16
20	HK2010	27941/20	11.8	20	26	10
	HK2012	37941/20	14.4	20	26	12
	HK2014	47941/20	15.7	20	26	14
	HK2016	57941/20	19.3	20	26	16
	HK2018	67941/20	23.3	20	26	18
	HK2020	79421/20	24.1	20	26	20
	HK2025	7943/20	28	20	26	25
	HK2030	–	34.7	20	26	30
	HK20×28×16	47942/20	28.5	20	28	16
22	HK2210	27941/22	12.3	22	28	10
	HK2212	37941/22	15	22	28	12
	HK2216	57941/22	20.9	22	28	16
	HK2220	77941/22	26.2	22	28	20
	HK2230	–	32	22	28	30
25	HK2512	27941/25	20	25	32	12
	HK2514	37941/25	21.9	25	32	14
	HK2516	7941/25	27.3	25	32	16
	HK2518	57941/25	28.2	25	32	18
	HK2520	67941/25	34.1	25	32	20
	HK2525	7943/25	40	25	32	25
	HK2526	–	44.8	25	32	26
	HK2538	87941/25	64.7	25	32	38
	HK25×35×20	57942/25	44.9	28	35	20
28	HK2816	47941/28	30.1	28	35	16
	HK2818	57941/28	31.7	28	35	18
	HK2820	67941/28	37.6	30	35	20
30	HK3012	27941/30	24	30	37	12
	HK3016	47941/30	32	30	37	16
	HK3018	57941/30	33.6	30	37	18
	HK3020	67941/30	40.1	30	37	20
	HK3026	–	52.9	30	37	26
	HK3038	–	76.1	30	37	38
	HK30×38×12	27941/30	28	30	38	12
	HK30×38×16	7941/30	32.7	30	38	16
	HK30×38×24	7942/30	49	30	38	24
	HK30×38×32	7943/30	69	30	38	32
32	HK3224	77941/32	50.7	32	39	24
	HK3232	97941/32	66.4	32	39	32
	HK32×40×32	7943/32	72.7	32	40	32
35	HK3512	59741/35	27.7	35	42	12
	HK3516	47941/35	36.9	35	42	16
	HK3520	67941/35	46.1	35	42	20
	HK35×43×16	7941/35	37	35	43	16
	HK35×43×25	7942/35	60.5	35	43	25
	HK35×43×32	7943/35	80	35	43	32
38	HK38×48×30	–	102	38	48	30
40	HK4012	27941/40	31.1	40	47	12
	HK4016	47941/40	41.4	40	47	16
	HK4020	67941/40	51.8	40	47	20
	HK40×50×32	7942/40	114.3	40	50	32
	HK40×50×38	7943/40	130.8	40	50	38
45	HK4512	27941/45	34.8	45	52	12
	HK4516	47941/45	46.2	45	52	16
	HK4520	67941/45	56	45	52	20
	HK5012	27941/50	44.2	50	58	12
	HK5020	47941/50	72	50	58	20
	HK5025	7943/50	90.1	50	58	25
55	HK5520	57941/55	78	55	63	20
	HK5525	77941/55	109	55	63	25
	HK5528	87941/55	111	55	63	28
60	HK6012	–	49.2	60	68	12
60	HK6020	57941/60	86	60	68	20

Blog

Needle Bearings Structure:

Features:

Common Types of Needle Roller Bearings:

Drawn Cup Needle Roller Bearing Size Chart: