Thin section Angular Contact Bearing

The Type A bearing is also a conventional design. It features a circular pocket separator and a 30° contact angle along with approximately 67% of a full complement of balls.The chief benefit of the Type A bearing is that it provides greater thrust capacity than a Type C or Type X bearing. Because of its counter bored outer race, a Type A bearing has unidirectional thrust capacity. Thus, this bearing should be mounted opposed to another bearing to establish and maintain the contact angle, and to support reversing thrust loads.

Product Details

Bearing Number	Dimensions in Inches					Capacities（lbs）				Wight（lbs）
	Bore	Outside Dia.	L1	L2	L3	Radial		axial
	Bore	Outside Dia.	L1	L2	L3	Dynamic	Static	Dynamic	Static
KAA10AG0	1.000	1.375	1.140	1.235	1.274	340	194	970	450	0.025
KAA15AG0	1.500	1.875	1.640	1.735	1.774	480	238	1,380	560	0.038
KAA17AG0	1.750	2.125	1.890	1.985	2.024	530	251	1,520	600	0.045
KA020AR0	2.000	2.500	2.186	2.314	2.369	790	405	2,280	960	0.10
KA025AR0	2.500	3.000	2.686	2.814	2.869	960	459	2,780	1,100	0.12
KA030AR0	3.000	3.500	3.186	3.314	3.367	1,140	507	3,290	1,230	0.14
KA035AR0	3.500	4.000	3.686	3.814	3.867	1,310	552	3,790	1,350	0.17
KA040AR0	4.000	4.500	4.186	4.314	4.367	1,490	595	4,300	1,470	0.19
KA042AR0	4.250	4.750	4.436	4.564	4.615	1,580	616	4,550	1,530	0.20
KA045AR0	4.500	5.000	4.686	4.814	4.865	1,660	637	4,810	1,580	0.21
KA047AR0	4.750	5.250	4.936	5.064	5.115	1,750	657	5,060	1,640	0.22
KA050AR0	5.000	5.500	5.186	5.314	5.365	1,840	676	5,310	1,690	0.23
KA055AR0	5.500	6.000	5.686	5.814	5.863	2,020	715	5,820	1,800	0.25
KA060AR0	6.000	6.500	6.186	6.314	6.363	2,190	752	6,320	1,900	0.28
KA065AR0	6.500	7.000	6.686	6.814	6.861	2,370	788	6,830	2,000	0.30
KA070AR0	7.000	7.500	7.186	7.314	7.361	2,540	823	7,340	2,100	0.32
KA075AR0	7.500	8.000	7.686	7.814	7.861	2,720	857	7,840	2,190	0.34
KA080AR0	8.000	8.500	8.186	8.314	8.359	2,890	890	8,350	2,280	0.36
KA090AR0	9.000	9.500	9.186	9.314	9.357	3,240	954	9,360	2,470	0.41
KA100AR0	10.000	10.500	10.186	10.314	10.355	3,590	1,014	10,370	2,640	0.45
KA110AR0	11.000	11.500	11.186	11.314	11.353	3,940	1,072	11,380	2,810	0.50
KA120AR0	12.000	12.500	12.186	12.314	12.349	4,290	1,128	12,390	2,970	0.54
KB020AR0	2.000	2.625	2.231	2.393	2.464	1,090	601	3,150	1,380	0.15
KB025AR0	2.500	3.125	2.731	2.893	2.964	1,340	675	3,860	1,590	0.19
KB030AR0	3.000	3.625	3.231	3.393	3.462	1,550	734	4,470	1,750	0.22
KB035AR0	3.500	4.125	3.731	3.893	3.962	1,790	801	5,180	1,930	0.27
KB040AR0	4.000	4.625	4.231	4.393	4.460	2,040	865	5,890	2,100	0.30
KB042AR0	4.250	4.875	4.481	4.643	4.710	2,150	891	6,200	2,170	0.31
KB045AR0	4.500	5.125	4.731	4.893	4.960	2,250	917	6,500	2,240	0.34
KB047AR0	4.750	5.375	4.981	5.143	5.210	2,390	951	6,910	2,340	0.35
KB050AR0	5.000	5.625	5.231	5.393	5.460	2,500	976	7,210	2,410	0.37
KB055AR0	5.500	6.125	5.731	5.893	5.958	2,740	1,033	7,920	2,560	0.40
KB060AR0	6.000	6.625	6.231	6.393	6.458	2,990	1,088	8,630	2,710	0.44
KB065AR0	6.500	7.125	6.731	6.893	6.958	3,200	1,132	9,240	2,840	0.47
KB070AR0	7.000	7.625	7.231	7.393	7.456	3,450	1,184	9,960	2,980	0.50
KB075AR0	7.500	8.125	7.731	7.893	7.955	3,700	1,235	10,670	3,120	0.54
KB080AR0	8.000	8.625	8.231	8.393	8.453	3,940	1,284	11,380	3,260	0.57
KB090AR0	9.000	9.625	9.231	9.393	9.451	4,400	1,370	12,700	3,510	0.64
KB100AR0	10.000	10.625	10.231	10.393	10.449	4,890	1,461	14,120	3,760	0.71
KB110AR0	11.000	11.625	11.231	11.393	11.447	5,350	1,540	15,440	4,000	0.78
KB120AR0	12.000	12.625	12.231	12.393	12.445	5,840	1,623	16,860	4,240	0.85
KB140AR0	14.000	14.625	14.231	14.393	14.439	6,760	1,767	19,500	4,670	0.98
KB160AR0	16.000	16.625	16.231	16.393	16.433	7,710	1,907	22,250	5,100	1.12
KB180AR0	18.000	18.625	18.231	18.393	18.425	8,660	2,038	24,990	5,510	1.26
KB200AR0	20.000	20.625	20.231	20.393	20.416	9,610	2,162	27,730	5,900	1.40
KC040AR0	4.000	4.750	4.277	4.473	4.554	2,550	1,153	7,360	2,770	0.44
KC042AR0	4.250	5.000	4.527	4.723	4.804	2,710	1,194	7,820	2,880	0.46
KC045AR0	4.500	5.250	4.777	4.973	5.052	2,860	1,234	8,270	2,990	0.49
KC047AR0	4.750	5.500	5.027	5.223	5.302	3,020	1,274	8,720	3,100	0.51
KC050AR0	5.000	5.750	5.277	5.473	5.552	3,180	1,313	9,170	3,200	0.54
KC055AR0	5.500	6.250	5.777	5.973	6.052	3,440	1,374	9,920	3,370	0.58
KC060AR0	6.000	6.750	6.277	6.473	6.550	3,750	1,448	10,820	3,580	0.64
KC065AR0	6.500	7.250	6.777	6.973	7.050	4,060	1,519	11,720	3,770	0.68
KC070AR0	7.000	7.750	7.277	7.473	7.550	4,320	1,575	12,470	3,930	0.74
KC075AR0	7.500	8.250	7.777	7.973	8.048	4,630	1,642	13,380	4,120	0.78
KC080AR0	8.000	8.750	8.277	8.473	8.548	4,950	1,708	14,280	4,300	0.84
KC090AR0	9.000	9.750	9.277	9.473	9.546	5,520	1,822	15,930	4,630	0.98
KC100AR0	10.000	10.75	10.28	10.47	10.54	6,140	1,942	17,730	4,970	1.04
KC110AR0	11.000	11.75	11.28	11.47	11.54	6,720	2,047	19,390	5,280	1.14
KC120AR0	12.000	12.75	12.28	12.47	12.54	7,290	2,147	21,040	5,570	1.23
KC140AR0	14.000	14.75	14.28	14.47	14.54	8,490	2,347	24,500	6,170	1.43
KC160AR0	16.000	16.75	16.28	16.47	16.53	9,680	2,533	27,950	6,730	1.63
KC180AR0	18.000	18.75	18.28	18.47	18.52	10,880	2,707	31,410	7,280	1.83
KC200AR0	20.000	20.75	20.28	20.47	20.52	12,030	2,863	34,720	7,780	2.03
KC250AR0	25.000	25.75	25.28	25.47	25.50	14,900	3,233	43,280	9,010	2.52
KC300AR0	30.000	30.75	30.28	30.47	30.48	17,960	3,561	51,850	10,160	3.02
KD040AR0	4.000	5.000	4.370	4.630	4.741	3,550	1,819	10,260	4,260	0.80
KD042AR0	4.250	5.250	4.620	4.880	4.991	3,750	1,876	10,830	4,420	0.84
KD045AR0	4.500	5.500	4.870	5.130	5.241	3,950	1,931	11,400	4,570	0.88
KD047AR0	4.750	5.750	5.120	5.380	5.490	4,150	1,986	11,970	4,720	0.93
KD050AR0	5.000	6.000	5.370	5.630	5.740	4,340	2,040	12,540	4,870	0.98
KD055AR0	5.500	6.500	5.870	6.130	6.238	4,740	2,145	13,680	5,160	1.06
KD060AR0	6.000	7.000	6.370	6.630	6.738	5,130	2,247	14,820	5,440	1.15
KD065AR0	6.500	7.500	6.870	7.130	7.236	5,530	2,346	15,960	5,720	1.24
KD070AR0	7.000	8.000	7.370	7.630	7.736	5,920	2,442	17,100	5,990	1.33
KD075AR0	7.500	8.500	7.870	8.130	8.236	6,320	2,536	18,240	6,250	1.42
KD080AR0	8.000	9.000	8.370	8.630	8.734	6,710	2,627	19,380	6,510	1.52
KD090AR0	9.000	10.000	9.370	9.630	9.732	7,500	2,803	21,660	7,010	1.69
KD100AR0	10.00	11.00	10.37	10.630	10.732	8,290	2,972	23,940	7,500	1.87
KD110AR0	11.00	12.00	11.37	11.630	11.730	9,080	3,133	26,220	7,960	2.05
KD120AR0	12.00	13.00	12.37	12.630	12.728	9,870	3,288	28,500	8,420	2.23
KD140AR0	14.00	15.00	14.37	14.630	14.724	11,450	3,582	33,060	9,290	2.57
KD160AR0	16.00	17.00	16.37	16.630	16.718	13,030	3,856	37,620	10,130	2.93
KD180AR0	18.00	19.00	18.37	18.630	18.712	14,610	4,113	42,180	10,930	3.29
KD200AR0	20.00	21.00	20.37	20.630	20.705	16,190	4,356	46,740	11,710	3.65
KD210AR0	21.00	22.00	21.37	21.630	21.700	16,981	4,472	49,020	12,086	3.83
KD250AR0	25.00	26.00	25.37	25.630	25.688	20,140	4,908	58,140	13,540	4.54
KD300AR0	30.00	31.00	30.37	30.630	30.672	24,090	5,397	69,540	15,260	5.44
KF040AR0	4.000	5.500	4.555	4.945	5.115	6,350	3,736	18,340	8,420	1.92
KF042AR0	4.250	5.750	4.805	5.195	5.365	6,600	3,805	19,050	8,630	2.04
KF045AR0	4.500	6.000	5.055	5.445	5.615	7,090	3,966	20,460	9,050	2.14
KF047AR0	4.750	6.250	5.305	5.695	5.865	7,330	4,034	21,160	9,260	2.26
KF050AR0	5.000	6.500	5.555	5.945	6.115	7,570	4,101	21,870	9,460	2.37
KF055AR0	5.500	7.000	6.055	6.445	6.613	8,310	4,319	23,980	10,060	2.59
KF060AR0	6.000	7.500	6.555	6.945	7.113	9,040	4,530	26,100	10,650	2.72
KF065AR0	6.500	8.000	7.055	7.445	7.613	9,770	4,734	28,220	11,220	2.94
KF070AR0	7.000	8.500	7.555	7.945	8.113	10,510	4,932	30,330	11,770	3.16
KF075AR0	7.500	9.000	8.055	8.445	8.610	11,000	5,052	31,740	12,130	3.39
KF080AR0	8.000	9.500	8.555	8.945	9.110	11,730	5,242	33,860	12,670	3.61
KF090AR0	9.000	10.500	9.555	9.945	10.108	13,190	5,608	38,090	13,700	3.95
KF100AR0	10.000	11.500	10.555	10.945	11.106	14,420	5,890	41,620	14,530	4.40
KF110AR0	11.000	12.500	11.555	11.945	12.106	15,880	6,227	45,850	15,500	4.75
KF120AR0	12.000	13.500	12.555	12.945	13.104	17,100	6,487	49,380	16,290	5.20
KF140AR0	14.000	15.500	14.555	14.945	15.102	19,790	7,043	57,140	17,950	5.76
KF160AR0	16.000	17.500	16.555	16.945	17.098	22,480	7,563	64,890	19,540	6.78
KF180AR0	18.000	19.500	18.555	18.945	19.096	25,410	8,103	73,360	21,210	7.67
KF200AR0	20.000	21.500	20.555	20.945	21.092	28,100	8,562	81,120	22,680	8.47
KF250AR0	25.000	26.500	25.555	25.945	26.085	34,700	9,585	100,200	26,100	10.50
KF300AR0	30.000	31.500	30.555	30.945	31.075	41,540	10,533	119,900	29,430	12.50
KF350AR0	35.000	36.500	35.555	35.945	36.064	48,380	11,382	139,700	32,580	14.60
KF400AR0	40.000	41.500	40.555	40.945	41.054	55,220	12,147	159,400	35,580	16.60
KG040AR0	4.000	6.000	4.742	5.258	5.491	9,480	6,281	27,360	13,630	3.61
KG042AR0	4.250	6.250	4.992	5.508	5.741	9,950	6,438	28,730	14,090	3.83
KG045AR0	4.500	6.500	5.242	5.758	5.989	10,430	6,562	30,100	14,530	3.95
KG047AR0	4.750	6.750	5.492	6.008	6.239	10,900	6,745	31,460	14,970	4.17
KG050AR0	5.000	7.000	5.742	6.258	6.489	11,370	6,897	32,830	15,400	4.42
KG055AR0	5.500	7.500	6.242	6.758	6.989	12,320	7,192	35,570	16,240	4.73
KG060AR0	6.000	8.000	6.742	7.258	7.489	13,270	7,480	38,300	17,060	5.07
KG065AR0	6.500	8.500	7.242	7.758	7.987	14,220	7,761	41,040	17,870	5.41
KG070AR0	7.000	9.000	7.742	8.258	8.487	15,160	8,035	43,780	18,650	5.87
KG075AR0	7.500	9.500	8.242	8.758	8.987	16,110	8,303	46,510	19,420	6.20
KG080AR0	8.000	10.000	8.742	9.258	9.485	17,060	8,566	49,250	20,180	6.54
KG090AR0	9.000	11.000	9.742	10.258	10.485	18,960	9,073	54,720	21,640	7.22
KG100AR0	10.000	12.000	10.742	11.258	11.483	20,850	9,561	60,190	23,060	8.00
KG110AR0	11.000	13.000	11.742	12.258	12.481	22,750	10,027	65,660	24,440	8.68
KG120AR0	12.000	14.000	12.742	13.258	13.481	24,640	10,481	71,140	25,780	9.47
KG140AR0	14.000	16.000	14.742	15.258	15.478	28,430	11,338	82,080	28,360	10.90
KG160AR0	16.000	18.000	16.742	17.258	17.474	32,220	12,142	93,020	30,830	12.40
KG180AR0	18.000	20.000	18.742	19.258	19.472	36,020	12,898	104,000	33,200	13.80
KG200AR0	20.000	22.000	20.742	21.258	21.468	39,810	13,612	114,900	35,490	15.20
KG220AR0	22.000	24.000	22.742	23.258	23.468	43,598	14,290	125,856	37,712	16.63
KG250AR0	25.000	27.000	25.742	26.258	26.461	49,280	15,239	142,300	40,920	18.80
KG300AR0	30.000	32.000	30.742	31.258	31.451	58,760	16,687	169,600	46,020	22.50
KG350AR0	35.000	37.000	35.742	36.258	36.440	68,240	17,982	197,000	50,840	26.20
KG400AR0	40.000	42.000	40.742	41.26	41.43	77,720	19,153	224,400	55,440	29.80

Type A Angular Contact ball bearings differ from Type C bearings in that Type A bearings have sufficient diametral clearance to produce a substantial angle of contact for resistance to axial load.

This contact angle is 30° in the standard bearing. As in the Type C bearing, extra deep ball grooves are used (25% of ball diameter).

The distinguishing feature of the Type A bearing lies in the method of assembly. One ring, usually the outer, is counter-bored to reduce one shoulder of the raceway to the extent that with the assistance of a temperature differential between the two rings, the outer ring can be installed over the inner race, ball, and separator assembly. This provides a non-separable bearing capable of carrying greater radial loads while resisting a substantial axial force in one direction. With an axial force applied, the faces of the inner and outer rings are approximately flush to minimize preload adjustments.

This assembly method permits the use of a greater complement of balls than is possible in the Type C bearing without filling slots, and together with the sizable contact angle, gives the Type Abearing its greater thrust capacity.Because of its unidirectional thrust capability, this bearing should be mounted opposed to another bearing such that an axial force is present to establish and maintain the contact angle and to minimize axial movement under reversing thrust loads.

Back-to-back Mounting

Back-to-back mounting. In this figure, The bearings are mounted with the lines of contact converging outside of the bearings,the bearings are adjustable through the inner races by use of shims under the inner race clamping ring. Sufficient shim thickness is provided initially to allow axial movement of the shaft relative to the housing. The total axial movement can then be measured and the shim thickness reduced by the amount of movement plus any additional amount desired for preload. When two bearings are opposed to each other to the extent that all internal clearance is removed and elastic deformation occurs between the balls and raceways, the bearings are said to be “preload.”Back-to-back arrangement offers greater rigidity under moment loading and should be used when the space between single bearings is small or when a single pair of adjacent bearings is employed.

Face-to-face Mounting

Face-to-face mounting used between both the inner and outer races and adjustment is possible by varying the length of one spacer relative to the other. The bearings are mounted with the contact lines converging inward.Normally, however, the spacers are equal in length and the bearings are furnished as a matched pair with a predetermined internal fit. If the outer race

spacer were removed from this assembly, the bearings could be adjusted by use of shims under the outer race clamping ring.

Face-to-face arrangement is more tolerant of misalignment between the shaft and housing and should be considered when there are multiple pairs of bearings along an axis. When single bearings are mounted face-to-face, they must be spaced sufficiently to provide resistance to moment load. If required, a face-to-face pair can be mounted in conjunction with another bearing in a “fixed-float” arrangement with the pair in the fixed position.

Tandem Bearings

Tandem bearing sets have single direction thrust capacity and must be mounted opposed to another bearing or set.

When applying catalog load ratings to matched sets, the total radial capacity is considered equal to the single bearing radial rating multiplied by N^0.7, where N is the number of bearings in the set. The thrust capacity in each direction is considered equal to the single bearing thrust rating multiplied by N^0.7, where N is the number of bearings resisting thrust in that direction.

Unless specifically requested, the outboard faces of bearing sets are not controlled. If outboard face flushness is required for preload purposes, universally ground bearings should be considered. On universally ground bearings, both inboard and outboard faces are matched under a specified gauge load to control preload and allow for mounting orientation flexibility.

MONTON slim bearing range from bore diameters 1.000 inch to 40.000 inches. crosssection range from .187 x .187 inch to 1.000 x 1.000 inch . MONOTN's slim bearing mainly in three configurations (Types A angular contact ball bearing, C deep groove ball bearing and X four point angular contact ball bearing).Seals type mainly include angular contact ball bearing and deep groove ball bearings.

MONTON bearings can supply different internal clearances, lubrication, cage, and other characteristics, which can meet the needs of most customers. If you need non-standard customized bearings and special environments bearings , please contact our with technical team!