Radial needle roller and cage assemblies

Radial needle roller and cage assemblies is a separated unit with high load capacity and high rigid design, widely used in the elements which has limitation in the radial size. Every needle is precisely guided and keep stable by the cage , so result to a better high speed performance.

DESCRIPTION

The cage is generally made of 20# steel, 15CrMo, 20CrMo and reinforced nylon, the needle roller is made of bearing steel. The steel cage has enough strength and wear resistance after quenching. The maximum operating temperature of nylon cage is generally 120 ℃, and 180 ℃ is allowed for short-term operation.

We can also provide cages with special surface treatment, such as copper plating, silver plating, phosphating and blackening.

The radial needle roller and cage assemblies can be used as support and connecting rod bearing under high radial acceleration operation. They are applied in automobile starter, gearbox, motorcycles, garden machines, sewing machines, robot RV reducers and outboard engines.

Structure:	K	Single row radial needle roller and cage assemblies
	KK	Double row radial needle roller and cage assemblies
	KS	Split type radial needle roller and cage assemblies
	KKS	Split type double row radial needle roller and cage assemblies
	KZK	Radial needle roller and cage assemblies for connecting rod crank pin
	KBK	Radial needle roller and cage assemblies for connecting rod piston pin

Shaft	Bearing Designation		Boundary Dimensions			Basic Load Rating		Limiting Speed
Diameter	Current Model	Original Code	Fw	Ew	Bc	Cr Dynamic	Cor Static	Oil
mm	Current Model	Original Code	mm			N		rpm
5	K5×8×8	29241/5	5	8	8	2300	1880	37000
5	K5×8×10	39241/5	5	8	10	2800	2450	37000
6	K6×9×8	29241/6	6	9	8	2560	2240	35000
	K6×9×10	39241/6	6	9	10	3300	3100	35000
	K6×10×13	49241/6	6	10	13	3500	2800	33000
7	K7×10×8	29241/7	7	10	8	2750	2550	32000
7	K7×10×10	39241/7	7	10	10	3350	3400	32000
8	K8×11×8	29241/8	8	11	8	3000	2900	30000
	K8×11×10	39241/8	8	11	10	3830	3950	30000
	K8×11×11		8	11	11	3830	3950	30000
	K8×12×10	29242/8	8	12	10	4900	4600	30000
9	K9×12×10	39241/9	9	12	10	4200	4700	30000
9	K9×12×13	49241/9	9	12	13	5500	6700	30000
10	K10×13×10	39241/10	10	13	10	4500	5250	27000
	K10×13×13	39241/10	10	13	13	6000	7600	27000
	K10×13×16		10	13	16	6300	7800	27000
	K10×14×10	29242/10	10	14	10	7000	7900	27000
	K10×14×13	39242/10	10	14	13	8000	9100	26000
	K10×16×12	19244/10	10	16	12	7000	9300	27000
12	K12×15×9		12	15	9	4120	5210	25000
	K12×15×10	39241/12	12	15	10	4320	5730	25000
	K12×15×13	49241/12	12	15	13	6000	8100	25000
	K12×16×8	19242/12	12	16	8	4200	4700	25000
	K12×16×10	29242/12	12	16	10	6000	6900	25000
	K12×16×13	39242/12	12	16	13	7900	9200	25000
	K12×17×13	59242/12	12	17	13	9300	10000	24000
	K12×18×12	19244/12	12	18	12	9800	8000	24000
	K12×15×20	K12×15×20	12	15	20	8200	12000	25000
14	K14×18×17	59241/14	14	18	17	10500	13900	23000
14	K14×20×12	19243/14	14	20	12	9900	10500	22000
15	K15×19×17	59241/15	15	19	17	8300	9800	22000
15	K15×20×10	19242/15	15	20	10	9700	11000	22000
16	K16×22×12	19243/16	16	22	12	11000	12000	21000
16	K16×22×16		16	22	16	14300	17000	21000
17	K17X21X10	29241/17	17	21	10	7900	10100	21000
	K17X21X13	39241/17	17	21	13	10000	14100	21000
	K17X21X17	59241/17	17	21	17	12000	17400	21000
	K17X23X14	29243/17	17	23	14	11000	15000	21000
18	K18X22X10	29241/18	18	22	10	8200	9900	20000
	K18X22X13	39241/18	18	22	13	9000	12100	20000
	K18X22X17	59241/18	18	22	17	11900	17600	20000
	K18X24X12	19243/18	18	24	12	11200	12900	20000
	K18X24X13		18	24	13	12900	14900	20000
	K18X24X13.5		18	24	13.5	12900	14900	20000
	K18X24X20	49243/18	18	24	20	20000	26500	20000
	K18X25X14		18	25	14	16500	18800	20000
	K18X25X22		18	25	22	22900	28400	20000
	K18X26X14		18	26	14	18000	20000	18000
	K18X28X16	19244/18	18	28	16	19000	18400	19000
19	K19X23X13		19	23	13	9300	13000	20000
19	K19X23X17		19	23	17	12000	18600	20000
20	K20X24X10	29241/20	20	24	10	8700	12100	19000
	K20X24X12		20	24	12	9600	13800	19000
	K20X24X13	39241/20	20	24	13	9600	13800	19000
	K20X24X17	59241/20	20	24	17	12400	20000	19000
	K20X26X12	19243/20	20	26	12	13100	15700	19000
	K20X26X16	K9249/20	20	26	16	18000	25000	18500
	K20X26X17	39243/20	20	26	17	18700	25500	19000
	K20X26X20	49243/20	20	26	20	20600	28500	19000
	K20X28X20	19245/20	20	28	20	23400	28000	18000
	K20X28X25	29245/20	20	28	25	30000	28500	18000
	K20X30X30	39245/20	20	30	30	35000	41000	18000
21	K21X25X13		21	25	13	9600	14500	19000
21	K21X25X17		21	25	17	12800	21000	19000
22	K22X26X10	29241/22	22	26	10	8700	12900	18000
	K22X26X13	39241/22	22	26	13	10000	15400	18000
	K22X26X17	59241/22	22	26	17	13100	22100	18000
	K22X27X13	29242/22	22	27	13	14000	23000	18000
	K22X28X17	39243/22	22	28	17	19000	26500	18000
	K22X28X23	59243/22	22	28	23	20000	27000	19000
	K22X29X16	19244/22	22	29	16	19500	25000	17000
	K22X30X15TN		22	30	15	19600	22900	17000
	K22X30X20	19245/22	22	30	20	21000	23500	18900
	K22X32X24		22	32	24	33500	39500	16000
23	K23X35X16TN		23	35	16	24000	23400	15000
24	K24X28X10		24	28	10	9400	14300	17000
	K24X28X13		24	28	13	10500	17000	17000
	K24X28X17	9243/24	24	28	17	14000	24500	17000
	K24X29X13		24	29	13	13100	19100	16000
	K24X30X17		24	30	17	19000	27000	16000
	K24X30X31		24	30	31	27000	43000	16000
25	K25X29X10	29241/25	25	29	10	9700	14900	16000
	K25X29X13	39241/25	25	29	13	10800	17900	16000
	K25X29X17	59241/25	25	29	17	14500	25500	16000
	K25X30X13	29242/25	25	30	13	14100	21300	16000
	K25X30X20	59242/25	25	30	20	21100	28000	16000
	K25X30X25		25	30	25	21700	40400	15000
	K25X30X26	52.436	25	30	26	20100	26500	15000
	K25X31X17	39243/25	25	31	17	19000	28000	16000
	K25X31X21	39243/25	25	31	21	24100	37500	16000
	K25X32X16	19244/25	25	32	16	20500	27500	15000
	K25X33X20	19245/25	25	33	20	28000	37500	15000
	K25X33X24	29245/25	25	33	24	33900	46500	15000
	K25X34X18		25	34	18	48000	67000	15000
	K25X35X30	39245/25	25	35	30	46500	61500	14000
	K25X30X26 ZW		25	30	26	21000	35000	14000
	K26X30X17		26	30	17	14700	27000	16000
	K27X32X17		27	32	17	16000	34000	17000
	K28X33X13	29241/26	28	33	13	14800	23600	14000
	K28X33X17	49241/28	28	33	17	19100	33000	14000
	K28X34X17	39242/28	28	34	17	21300	35000	14000
	K28X35X20	29243/28	28	35	20	24000	34000	14000
	K30X35X17	49241/30	30	35	17	19100	33500	13000
	K30X35X27	19241/30	30	35	27	30000	58500	13000
	K30X38X25	29244/30	30	38	25	16000	39000	13000
	K30X40X30	49243/30	30	40	30	48500	68500	13000
	K32X37X13	29241/32	32	37	13	15000	25000	12000
	K32X38X20	49242/32	32	38	20	26000	44500	12000
	K32X39X16	19243/32	32	39	16	23500	35000	12000
	K32X40X20	19244/32	32	40	20	37000	40500	12000
	K35X40X17	49241/35	35	40	17	20300	38000	11000
	K35X40X27	79241/35	35	40	27	27800	62100	11000
	K35X42X16	19243/35	35	42	16	23900	37000	11000
	K35X42X30	49243/35	35	42	30	38500	67500	11000
	K35X45X30	29245/35	35	45	30	52500	78500	10000
	K35X42X20ZW	29243/35	35	42	20	29500	48500	11000
	K38X43X27	79241/38	38	43	27	31000	67500	10000
	K38X46X20	19244/38	38	46	20	35000	56500	10000
	K40X45X17	49241/40	40	45	17	20900	41000	10000
	K40X45X27	19241/40	40	45	27	32500	72500	10000
	K40X48X20	19244/40	40	48	20	35500	58500	9000
	K42X47X13	29241/42	42	47	13	17300	33000	9000
	K42X47X27	79241/42	42	47	27	33000	74500	9000
	K42X50X50	19244/42	42	50	20	34500	56500	9000
	K45X50X17	49241/45	45	50	17	22000	45000	8000
	K45X50X27	19241/45	45	50	27	34000	79500	8000
	K45X53X20	19244/45	45	53	20	38500	66500	8000
	K48X54X19	39242/48	48	54	19	30000	60500	7500
	K50X55X17ZW	49241/50	50	55	17	21400	46500	7500
	K50X55X30	9243/50	50	55	30	38500	96500	7500
	K50X58X20	19244/50	50	58	20	35000	61500	7000
	K50X58X25	29244/50	50	58	25	43500	80500	7000
	K55X61X20	49241/55	55	61	20	41000	11000	6500
	K55X63X25	29243/55	55	63	25	49500	99500	6500
	K60X65X30	69241/60	60	65	30	42000	115500	6000