Track Rollers Bearings

PRODUCT

RSTO RSTO..X
RNA22..2RS
NATR..PP NATV..PP
NUTR
CRY...V,CRY...VUU

KR..PP KRV..PP KRE..PP KRVE..PP NUKR NUKRE
CR...R,CR,CR...UUR,CR...UU

curve roller bearing

Supporting roller and curve roller

• Model KR, KR...PP Curve Roller

• Model KRV, KRV...PP Curve Roller

• Model NUKR Cure Roller

• KRE KRE...PP Model KREV, KREV...PP NUKRE Curve Roller

Shaft(mm)	Bearing Designation	With eccentric	D(mm)	d(mm)	C(mm)	ra(mm)	B(mm)	B1(mm)	B2（min）	G(mm)	G1(mm)	M(mm)	Mn(mm)	C1(mm)	d2(mm)	d1(mm)	B3(mm)	e(mm)	M(Nm)	Dynamic(N)	Static(N)	As yoke type track rollers Cw	As yoke type track rollers Cow	Limiting Speed(rpm)
16	KR16	KRE16	16	6	11	0.15	28	16		M6	8		45)	0.6	12	9	7	0.5	3	3800	3750	3150	3300	22000
16	KR16PP	KRE16PP	16	6	11	0.15	28	16		M6	8		45)	0.6	12	9	7	0.5	3	3800	3750	3150	3300	16000
16	KRV16	KRVE16	16	6	11	0.15	28	16		M6	8		45)	0.6	12	9	7	0.5	3	6400	8500	4850	6500	8500
16	KRV16PP	KRVE16PP	16	6	11	0.15	28	16		M6	8		45)	0.6	12	9	7	0.5	3	6400	8500	4850	6500	8500
19	KR19	KRE19	19	8	11	0.15	32	20		M8	10		45)	0.6	14	11	9	0.5	8	4250	4600	3500	3900	20000
19	KR19PP	KRE19PP	19	8	11	0.15	32	20		M8	10		45)	0.6	14	11	9	0.5	8	4250	4600	3500	3900	14000
19	KRV19	KRVE19	19	8	11	0.15	32	20		M8	10		45)	0.6	14	11	9	0.5	8	7300	10800	5500	7900	7000
19	KRV19PP	KRVE19PP	19	8	11	0.15	32	20		M8	10		45)	0.6	14	11	9	0.5	8	7300	10800	5500	7900	7000
22	KR22	KRE22	22	10	12	0.3	36	23		M10x1	12		4	0.6	17	13	10	0.5	15	5700	6500	4450	5200	16000
22	KR22PP	KRE22PP	22	10	12	0.3	36	23		M10x1	12		4	0.6	17	13	10	0.5	15	5700	6500	4450	5200	11000
22	KRV22	KRVE22	22	10	12	0.3	36	23		M10x1	12		4	0.6	17	13	10	0.5	15	8600	12900	6300	9100	6000
22	KRV22PP	KRVE22PP	22	10	12	0.3	36	23		M10x1	12		4	0.6	17	13	10	0.5	15	8600	12900	6300	9100	6000
26	KR26	KRE26	26	10	12	0.3	36	23		M10x1	12		4	0.6	17	13	10	0.5	15	5700	6500	5100	6200	16000
26	KR26PP	KRE26PP	26	10	12	0.3	36	23		M10x1	12		4	0.6	17	13	10	0.5	15	5700	6500	5100	6200	11000
26	KRV26	KRVE26	26	10	12	0.3	36	23		M10x1	12		4	0.6	17	13	10	0.5	15	8600	12900	7300	11300	6000
26	KRV26PP	KRVE26PP	26	10	12	0.3	36	23		M10x1	12		4	0.6	17	13	10	0.5	15	8600	12900	7300	11300	6000
30	KR30	KRE30	30	12	14	0.6	40	25	6	M12x1.5	13	3	6	0.6	23	15	11	0.5	22	8100	9700	6800	8400	11000
30	KR30PP	KRE30PP	30	12	14	0.6	40	25	6	M12x1.5	13	3	6	0.6	23	15	11	0.5	22	8100	9700	6800	8400	8300
30	KRV30	KRVE30	30	12	14	0.6	40	25	6	M12x1.5	13	3	6	0.6	23	15	11	0.5	22	12200	19000	9500	14600	4500
30	KRV30PP	KRVE30PP	30	12	14	0.6	40	25	6	M12x1.5	13	3	6	0.6	23	15	11	0.5	22	12200	19000	9500	14600	4500
32	KR32	KRE32	32	12	14	0.6	40	25	6	M12x1.5	13	3	6	0.6	23	15	11	0.5	22	8100	9700	7100	9000	11000
32	KR32PP	KRE32PP	32	12	14	0.6	40	25	6	M12x1.5	13	3	6	0.6	23	15	11	0.5	22	8100	9700	7100	9000	8300
32	KRV32	KRVE32	32	12	14	0.6	40	25	6	M12x1.5	13	3	6	0.6	23	15	11	0.5	22	12200	19000	10000	15800	4500
32	KRV32PP	KRVE32PP	32	12	14	0.6	40	25	6	M12x1.5	13	3	6	0.6	23	15	11	0.5	22	12200	19000	10000	15800	4500
35	KR35	KRE35	35	16	18	0.6	52	32.5	8	M16x1.5	17	3	6	0.8	27	20	14	1	58	12900	19000	9700	14100	7000
35	KR35PP	KRE35PP	35	16	18	0.6	52	32.5	8	M16x1.5	17	3	6	0.8	27	20	14	1	58	12900	19000	9700	14100	7000
35	KRV35	KRVE35	35	16	18	0.6	52	32.5	8	M16x1.5	17	3	6	0.8	27	20	14	1	58	18300	35000	12800	23000	3400
35	KRV35PP	KRVE35PP	35	16	18	0.6	52	32.5	8	M16x1.5	17	3	6	0.8	27	20	14	1	58	18300	35000	12800	23000	3400
35	NUKR35	NUKRE35	35	16	18	0.6	52	32.5	8	M16x1.5	17	3	6	0.8	21	20	14	1	58	23000	27000	16000	18300	6500
40	KR40	KRE40	40	18	20	1	58	36.5	8	M18x1.5	19	3	6	0.8	32	22	16	1	87	14200	20400	10900	15500	6000
40	KR40PP	KRE40PP	40	18	20	1	58	36.5	8	M18x1.5	19	3	6	0.8	32	22	16	1	87	14200	20400	10900	15500	6000
40	KRV40	KRVE40	40	18	20	1	58	36.5	8	M18x1.5	19	3	6	0.8	32	22	16	1	87	21000	39500	14800	26500	2900
40	KRV40PP	KRVE40PP	40	18	20	1	58	36.5	8	M18x1.5	19	3	6	0.8	32	22	16	1	87	21000	39500	14800	26500	2900
40	NUKR40	NUKRE40	40	18	20	1	58	36.5	8	M18x1.5	19	3	6	0.8	23	22	16	1	87	24800	31000	18500	22800	5500
47	KR47	KRE47	47	20	24	1	66	40.5	9	M20x1.5	21	4	8	0.8	37	24	18	1	120	19500	32000	15500	25500	4900
47	KR47PP	KRE47PP	47	20	24	1	66	40.5	9	M20x1.5	21	4	8	0.8	37	24	18	1	120	19500	32000	15500	25500	4900
47	KRV47	KRVE47	47	20	24	1	66	40.5	9	M20x1.5	21	4	8	0.8	37	24	18	1	120	28000	59000	20600	42000	2600
47	KRV47PP	KRVE47PP	47	20	24	1	66	40.5	9	M20x1.5	21	4	8	0.8	37	24	18	1	120	28000	59000	20600	42000	2600
47	NUKR47	NUKRE47	47	20	24	1	66	40.5	9	M20x1.5	21	4	8	0.8	37	24	18	1	120	39000	50000	28000	34500	4200
52	KR52	KRE52	52	20	24	1	66	40.5	9	M20x1.5	21	8	4	0.8	37	24	18	1	120	19500	32000	16800	38500	4900
52	KR52PP	KRE52PP	52	20	24	1	66	40.5	9	M20x1.5	21	8	4	0.8	37	24	18	1	120	19500	32000	16800	28500	4900
52	KRV52	KRVE52	52	20	24	1	66	40.5	9	M20x1.5	21	8	4	0.8	37	24	18	1	120	28000	59000	22500	48000	2600
52	KRV52PP	KRVE52PP	52	20	24	1	66	40.5	9	M20x1.5	21	8	4	0.8	37	24	18	1	120	28000	59000	22500	48000	2600
52	NUKR52	NUKRE52	52	20	24	1	66	40.5	9	M20x1.5	21	8	4	0.8	31	24	18	1	120	43500	60000	29000	37500	3400
62	KR62	KRE62	62	24	29	1	80	49.5	11	M24x1.5	25	8	4	0.8	44	28	22	1	220	30500	53000	26500	47500	3800
62	KR62PP	KRE62PP	62	24	29	1	80	49.5	11	M24x1.5	25	8	4	0.8	44	28	22	1	220	30500	53000	26500	47500	3800
62	KRV62	KRVE62	62	24	29	1	80	49.5	11	M24x1.5	25	8	4	0.8	44	28	22	1	220	41500	91000	34000	76000	2200
62	KRV62PP	KRVE62PP	62	24	29	1	80	49.5	11	M24x1.5	25	8	4	0.8	44	28	22	1	220	41500	91000	34000	76000	2200
62	NUKR62	NUKRE62	62	24	29	1	80	49.5	11	M24x1.5	25	8	4	0.8	38	28	22	1	220	59000	79000	40500	51000	2600
72	KR72	KRE72	72	24	29	1.1	80	49.5	11	M24x1.5	25	8	4	0.8	44	28	22	1	220	30500	53000	28000	53000	3800
72	KR72PP	KRE72PP	72	24	29	1.1	80	49.5	11	M24x1.5	25	8	4	0.8	44	28	22	1	220	30500	53000	28000	53000	3800
72	KRV72	KRVE72	72	24	29	1.1	80	49.5	11	M24x1.5	25	8	4	0.8	44	28	22	1	220	41500	91000	37000	85000	2200
72	KRV72PP	KRVE72PP	72	24	29	1.1	80	49.5	11	M24x1.5	25	8	4	0.8	44	28	22	1	220	41500	91000	37000	85000	2200
72	NUKR72	NUKRE72	72	24	29	1.1	80	49.5	11	M24x1.5	25	8	4	0.8	44	28	22	1	220	65000	93000	45000	61000	2100
80	KRV80	KRE80	80	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	53	35	29	1.5	450	45000	85000	39500	77000	2600
80	KR80PP	KRE80PP	80	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	53	35	29	1.5	450	45000	85000	39500	77000	2600
80	KRV80	KRVE80	80	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	53	35	29	1.5	450	60000	1420000	49500	1200000	1700
80	KRV80PP	KRVE80PP	80	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	53	35	29	1.5	450	60000	142000	49500	120000	1700
80	NUKR80	NUKRE80	80	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	47	35	29	1.5	450	95000	133000	67000	93000	1800
85	KR85	KRE85	85	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	53	35	29	1.5	450	45000	85000	40500	80000	2600
85	KR85PP	KRE85PP	85	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	53	35	29	1.5	450	45000	85000	40500	80000	2600
90	KR90	KRE90	90	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	53	35	29	1.5	450	45000	85000	41500	83000	2600
90	KR90PP	KRE90PP	90	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	53	35	29	1.5	450	45000	85000	41500	83000	2600
90	KRV90	KRVE90	90	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	53	35	29	1.5	450	60000	142000	53000	130000	1700
90	KRV90PP	KRVE90PP	90	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	53	35	29	1.5	450	60000	142000	53000	130000	1700
90		NUKRE90	90	30	35	1.1	100	63	15	M30x1.5	32	8	4	1	47	35	29	1.5	450	95000	133000	77000	110000	1800

• Model KR, KR...PP Curve Roller

In Model KR, KR...PP curve roller, the rolling body is guided by cage and the outer is axially guided by the baffle ring on the bolt. It is suitable for heavy load and middle rotational speed. Since the bearing has a large grease-storage space, it has a long-term lubrication cycle. Model KR...PP curve roller has the contact-type seal structure.

• Model KRV, KRV...PP Curve Roller

The structure of Model KRV, KRV...PP curve roller bearing is same with that of Model KR, KR...PP curve roller bearing. Model KRV, KRV...PP curve roller bearing is the full complement needle roller bearing. This cure roller bearing can withstand heavy load under the low speed. However it is necessary to add the lubricating grease at regular intervals.

• Model NUKR Cure Roller

Model NUKR cure roller bearing has the double-row roller structure. As same as parallel roller bearing, the outer ring is guided axially by rolling body. The cover pressed in outer ring and the shoulder constitutes the high-efficient gas seal. This kind of cure roller bearing can withstand the heavy load and the shock axial load because it is guided axially by roller.

• KRE KRE...PP Model KREV, KREV...PP NUKRE Curve Roller

Model KRE, KRE...PP, KREV, KREV...PP and NUKRE curve roller bearings are the special-purposed bearings in order to meet the supporting requirement of main machine. The outer ring has roller structure and the bolt shaft substitutes the inner ring. It has compact structure and can be equipped with eccentric-strap. The roller can be adjusted by means of the slot at end of bolt. The lubricating grease can be fed from both ends of bolt. CYS bearing Chaoyang Shining Trading Co., Ltd

yoke type track rollers with thick wall outer ring can roll directly on the tray under heavy load. It includes pressure roller,eccentric roller,rocking arm roller.The roller diameter is of ball shape or cylinder ball shape.With the ball shape,the inclining position resulted during the fitting can be compensated.

Structure
RSTO
No retaining edge in outer ring,yoke type track rollers without inner ring

STO
No retaining edge in outer ring,yoke type track rollers with inner ring

RNA22- 2RS
Double face sealed, yoke type track rollers without inner ring

NA22 - 2RS
Double face sealed, yoke type track rollers with inner ring

NATR
NATR - PP
Plain retaining ring,axial guiding, yoke type track rollers

NATV
NATV - PP
Plain retaining ring,axial guiding, yoke type track rollers
Full complement needle roller type

NUTR
Rolling body guiding,yoke type track rollers,full roller type

CRY
Inch system,plain retaining ring,axial guiding, yoke type track rollers

RSTO and STO type yoke type track rollers

ENKE series yoke type track rollers RSTO type,without inner ring,can directly run on the quenched shaft.STO type has inner rings,its inner ring,outer ring and the combinative needle roller retainer assembly can be fitted separately.Because RSTO and STO type yoke type track rollers have no retaining edges and the end retaining rings,axial guiding is needed in fitting.the guiding surface must be precisely machined at least.

RNA22...2RS,NA22...2RS type yoke type track rollers

The diameter of such rollers is the same as STO series rollers but a little wider.Its double face sealed structure ensures no maintenance requested.The operational temperature range is -20??￡-120??.When fitting the yoke type track rollers without inner rings (RNA22...2RS)series,noice no damage to the sealing rings should occur.The outer ring needs end face guidance.

NATR and NATR...PP type yoke type track rollers

NATR series roller contains outer ring,inner ring,needle retainer assembly and the retaining rings which are pressed and fixed by the two sides of inner ring.NATR...PP series has an additional sealing ring.This kind of yoke type track rollers have huge lubricant storage space,so they can be used for long period without re-grease.

NATV and NATV...PP type yoke type track rollers

NATV series yoke type track roller is basically the same as NATR series.The only difference is that NATV is full complement needle roller type.Therefore it can sustain heavier load under low speed.Frequent lubricating should be noticed.NATV...PP is a series with sealing ring structure.

NUTR type yoke type track rollers

NUTR series yoke type track roller is double row full roller bearing with retaining edge guiding outer ring.All the parts of the bearing are pressed into the sealing cage of outer ring forming a complete unit,the sealing cage,together with the thrust retaining ring form an efficient gap sealing.Very heavy load can be used on this yoke type track rollers.Even with very high speed,it can bear impact axle load due to its axle guidance of its rolling bodies.

Tolerance

In common cases,the precision of the dimensions,shape and the rotation of this yoke type track roller is P0 grade.The outer diameter tolerance of the yoke type track roller with an arc outer diameter is 0￡ˉ-0.05mm,the width tolerance of NATR,NATV,NUTR bearings is h12.

Center adjustability

The yoke type track roller with diameter of cylindrical shape have very small center adjustability.With low load,the center adjustability is 3-4'which with middle and heavy load,it is 5-7'.The yoke type track with diameter of arc shape have a center adjustability of 15-20'.For bigger angle variation,the edge effect will increase with the different loads.This will decrease the life of the bearing.

curve roller is composed of a stud used as the tray of a group of rollers and a thick wall outer ring .The shoulder of the stud and the surface retaining ring on the stud form the guiding faces on the two sides of the outer ring.When the curve rollers are running on the plain tray or cam wheel,the inner stress on the rollers will increase due to the deformation of the outer ring.Therefore the rated load should be selected as curve roller column in this operational case.

Structure

KR
Curve rollers radically guided by the retaining edge and ring

KR - PP
Curve rollers with sealing ring

KRE
Curve rollers with eccentric sleeve

KRE - PP
Curve rollers with eccentric sleeve and retaining sleeve

KRV
Curve rollers radically guided by the retaining edge and ring,Full complement needle roller type

KRV - PP
Curve rollers with sealing ring

KRVE
Curve rollers with eccentric sleeve

KRVE - PP
Curve rollers with eccentric sleeve and retaining sleeve

NUKR
Curve rollers axile guided by rolling bodies,full roller type

NUKRE
Curve rollers with eccentric sleeve

CR
Inch series curve rollers

KR and KR...PP type curve rollers

In KR,KR...PP curve rollers,the rolling needles are guided by the retainer while the outer ring is guided by the retaining ring shaft on the stud.These rollers are suitable for heave load and middle speed revolution.The lubricating can last a long period due to the bigger grease storage space inside the bearing.KR...PP curve roller is of contacting sealing structure.The operational temperature is -30??-100??.

KR and KR...PP type curve rollers

KRV,KRV...PP curve rollers have the same structures as KR,KR...PP type but they are filled with needle bearings.They can be used to bear heavier load and run with lower speed.They should be lubricated very often.

NUKR type curve rollers

This series curve rollers are of double lines full-roller structure.Like all cylindrical roller bearings,they are composed of outer ring cages pressed in the rolling bodies axle guidance and the retaining edge steps which forms highly effective gap sealing.

Especially heavy load can be borne by these rollers and also they can sustain the axile load impact due to the axile guidance by the rollers.

KRE,KRE...PP,KREV,KREV...PP,NUKRE type curve rollers

Curve rollers of all these types can be supplied with eccentric sleeve.The rollers can be adjusted by adjusting the stud end face.The top of the eccentric sleeve is situated at the place where HSB is marked.Lubricating grease can be made through the both ends of the stud.

NNTR

NNTR 38110-2LS, ,NNTR 50130-2LS ,NNTR 50140-2LS ,NNTR 55140-2LS ,NNTR 60130-2LS ,NNTR 60150-2LS ,NNTR 60160-2LS ,NNTR 60165-2LS ,NNTR 65150-2LS ,NNTR 65160-2LS ,NNTR 70180-2LS ,NNTR 70190-2LS ,NNTR 80200-2LS ,NNTR 80210-2LS ,NNTR 80230-2LS ,NNTR 90220-2LS ,NNTR 90240-2LS ,NNTR 100210-2LS ,NNTR 100215-2LS ,NNTR 100240-2LS