Inch Sealed Type X Thin Section Bearings

The X-Type, or 4-point contact, ball bearing is ideal for moment loading. X-Type bearings are designed with gothic arch raceways creating 4 contact points between the balls and the raceways. This design is excellent for moment loading and reversing axial loading. The X-Type bearing can be used for other light loading conditions, but is not recommended in place of the C- or A-Type bearing for pure radial loads. Contact Silverthin™ for information on combined load and limiting speeds.

Loading Condition
Radial	Axial	Moment	Reversing Axial	Combined Radial Thrust
Poor	Good,	Excellent	Excellent	Poor

Nylon; one piece snapover separator standard

3/32" balls

Load capacities are not additive
The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.015"
Race Width Tolerance: +0.000 -0.005"

JSHA SERIES 1/4" x 3/16"
SILVERTHIN PART NUMBER	DIMENSION IN INCHES				CAPACITIES IN POUNDS / IN-LBS						TORQUE MAX NO LOAD [in-lbs]	APPROX WEIGHT POUNDS
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	RADIAL		THRUST		MOMENT
	B	D	L₁	L₂	STATIC	DYN	STATIC	DYN	STATIC	DYN
JSHA10XL0	1.000	1.375	1.140	1.235	290	245	730	370	170	110	–	0.03
JSHA15XL0	1.500	1.875	1.640	1.735	400	295	1,000	460	340	185	–	0.04
JSHA17XL0	1.750	2.125	1.890	1.985	460	320	1,140	500	440	230	–	0.05

Brass; snapover separator standard

1/8" balls

Load capacities are not additive
The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.025"
Race Width Tolerance: +0.000 -0.005"

JSA SERIES 1/4" x 1/4"
SILVERTHIN PART NUMBER	DIMENSION IN INCHES				CAPACITIES IN POUNDS / IN-LBS						TORQUE MAX NO LOAD [in-lbs]	APPROX WEIGHT POUNDS
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	RADIAL		THRUST		MOMENT
	B	D	L₁	L₂	STATIC	DYN	STATIC	DYN	STATIC	DYN
JSA020XP0	2.000	2.500	2.186	2.314	680	515	1,710	790	770	435	6	0.10
JSA025XP0	2.500	3.000	2.686	2.814	830	585	2,090	910	1,150	600	8	0.13
JSA030XP0	3.000	3.500	3.186	3.314	990	645	2,470	1,010	1,600	785	12	0.15
JSA035XP0	3.500	4.000	3.686	3.814	1,140	700	2,850	1,110	2,130	985	16	0.18
JSA040XP0	4.000	4.500	4.186	4.314	1,290	755	3,220	1,210	2,740	1,205	20	0.19
JSA042XP0	4.250	4.750	4.436	4.564	1,370	785	3,410	1,260	3,070	1,320	24	0.20
JSA045XP0	4.500	5.000	4.686	4.814	1,440	810	3,600	1,310	3,420	1,440	28	0.22
JSA047XP0	4.750	5.250	4.936	5.064	1,520	835	3,790	1,350	3,790	1,565	32	0.23
JSA050XP0	5.000	5.500	5.186	5.314	1,590	860	3,980	1,400	4,180	1,695	36	0.24
JSA055XP0	5.500	6.000	5.686	5.814	1,750	910	4,360	1,480	5,020	1,960	44	0.25
JSA060XP0	6.000	6.500	6.186	6.314	1,900	955	4,740	1,570	5,930	2,240	52	0.28
JSA065XP0	6.500	7.000	6.686	6.814	2,050	1,000	5,120	1,650	6,910	2,535	61	0.30

Brass; snapover separator standard

5/32" balls

Load capacities are not additive
The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.040"
Race Width Tolerance: +0.000 -0.005"

JSB SERIES 5/16" x 5/16"
SILVERTHIN PART NUMBER	DIMENSION IN INCHES				CAPACITIES IN POUNDS / IN-LBS						TORQUE MAX NO LOAD [in-lbs]	APPROX WEIGHT POUNDS
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	RADIAL		THRUST		MOMENT
	B	D	L₁	L₂	STATIC	DYN	STATIC	DYN	STATIC	DYN
JSB020XP0	2.000	2.625	2.231	2.393	930	760	2,340	1,130	1,080	660	6	0.16
JSB025XP0	2.500	3.125	2.731	2.893	1,140	850	2,840	1,290	1,600	895	8	0.19
JSB030XP0	3.000	3.625	3.231	3.393	1,340	935	3,350	1,440	2,220	1,160	12	0.24
JSB035XP0	3.500	4.125	3.731	3.893	1,540	1,015	3,860	1,590	2,940	1,450	16	0.29
JSB040XP0	4.000	4.625	4.231	4.393	1,750	1,090	4,370	1,720	3,770	1,765	20	0.30
JSB042XP0	4.250	4.875	4.481	4.643	1,830	1,120	4,570	1,780	4,170	1,915	24	0.31
JSB045XP0	4.500	5.125	4.731	4.893	1,950	1,165	4,880	1,850	4,690	2,105	28	0.33
JSB047XP0	4.750	5.375	4.981	5.143	2,030	1,195	5,080	1,900	5,140	2,265	32	0.34
JSB050XP0	5.000	5.625	5.231	5.393	2,150	1,235	5,380	1,980	5,720	2,465	36	0.38
JSB055XP0	5.500	6.125	5.731	5.893	2,360	1,305	5,890	2,100	6,850	2,845	44	0.41
JSB060XP0	6.000	6.625	6.231	6.393	2,560	1,370	6,400	2,220	8,080	3,245	52	0.44
JSB065XP0	6.500	7.125	6.731	6.893	2,760	1,435	6,910	2,340	9,410	3,670	61	0.47

Brass; snapover separator standard

3/16" balls

Load capacities are not additive
The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.040"
Race Width Tolerance: +0.000 -0.005"

JSU SERIES 1/2" x 3/8"
SILVERTHIN PART NUMBER	DIMENSION IN INCHES				CAPACITIES IN POUNDS / IN-LBS						TORQUE MAX NO LOAD [in-lbs]	APPROX WEIGHT POUNDS
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	RADIAL		THRUST		MOMENT
	B	D	L₁	L₂	STATIC	DYN	STATIC	DYN	STATIC	DYN
JSU040XP0	4.000	4.750	4.277	4.473	2,100	1,415	5,260	2,210	4,600	2,325	2.9	0.55
JSU042XP0	4.250	5.000	4.527	4.723	2,220	1,465	5,560	2,290	5,140	2,540	3.2	0.58
JSU045XP0	4.500	5.250	4.777	4.973	2,340	1,510	5,860	2,380	5,710	2,760	3.5	0.61
JSU047XP0	4.750	5.500	5.027	5.223	2,460	1,555	6,160	2,460	6,320	2,990	3.9	0.65
JSU050XP0	5.000	5.750	5.277	5.473	2,590	1,600	6,460	2,540	6,950	3,225	4.3	0.68
JSU055XP0	5.500	6.250	5.777	5.973	2,830	1,685	7,060	2,690	8,300	3,715	5.1	0.74
JSU060XP0	6.000	6.750	6.277	6.473	3,070	1,770	7,660	2,840	9,770	4,235	6.1	0.81
JSU065XP0	6.500	7.250	6.777	6.973	3,310	1,850	8,270	2,990	11,370	4,775	7.0	0.87
JSU070XP0	7.000	7.750	7.277	7.473	3,550	1,930	8,870	3,130	13,080	5,340	8.1	0.93
JSU075XP0	7.500	8.250	7.777	7.973	3,790	2,005	9,470	3,270	14,910	5,930	9.2	0.99
JSU080XP0	8.000	8.750	8.277	8.473	4,030	2,080	10,070	3,410	16,870	6,540	10.4	1.06
JSU090XP0	9.000	9.750	9.277	9.473	4,510	2,225	11,270	3,670	21,130	7,830	13.0	1.18
JSU100XP0	10.000	10.750	10.277	10.473	4,990	2,365	12,470	3,930	25,880	9,200	16.0	1.31
JSU110XP0	11.000	11.750	11.277	11.473	5,470	2,495	13,680	4,180	31,110	10,650	19.2	1.43
JSU120XP0	12.000	12.750	12.277	12.473	5,950	2,620	14,880	4,420	36,830	12,175	22.8	1.56

Inch Sealed Type X Thin Section Bearings

JSHA SERIES 1/4" x 3/16"

JSA SERIES 1/4" x 1/4"

JSB SERIES 5/16" x 5/16"

JSU SERIES 1/2" x 3/8"

Part Number Cross Reference

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