Inch Series Cylindrical Roller Bearings — Interchange Chart

Name: Imperial Inch Series Cylindrical Roller Bearings
Brand: SLS

Imperial (inch-bore) cylindrical roller bearings are still fitted in British and older European machinery — gearboxes, pumps, compressors, textile, mining and rolling-mill equipment. Use this chart to cross-reference the same size across common catalogue numbers: CRL / CRM / CFL / CFM, RLS / RMS / RL.L / RM.L and LRJ / MRJ / LRJA / MRJA. The size number is the bore in eighths of an inch — CRL 8 = 1" bore (25.40 mm).

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CRL / RLS / LRJ — Light series

Standard light-duty inch cylindrical roller bearings.

CRL series inch cylindrical roller bearing equivalents
Bore (inch)	Bore (mm)	SKF	FAG	RHP	Quote
1/2"	12.70	CRL 4	RLS 5	LRJ 1/2	Quote
5/8"	15.88	CRL 5	RLS 7	LRJ 5/8	Quote
3/4"	19.05	CRL 6	RLS 8	LRJ 3/4	Quote
7/8"	22.22	CRL 7	RLS 9	LRJ 7/8	Quote
1"	25.40	CRL 8	RLS 10	LRJ 1	Quote
1 1/8"	28.57	CRL 9	RLS 11	LRJ 1 1/8	Quote
1 1/4"	31.75	CRL 10	RLS 12	LRJ 1 1/4	Quote
1 3/8"	34.92	CRL 11	RLS 12.1/2	LRJ 1 3/8	Quote
1 1/2"	38.10	CRL 12	RLS 13	LRJ 1 1/2	Quote
1 5/8"	41.27	CRL 13	RLS 13.1/2	LRJ 1 5/8	Quote
1 3/4"	44.45	CRL 14	RLS 14	LRJ 1 3/4	Quote
1 7/8"	47.63	CRL 15	RLS 14.1/2	LRJ 1 7/8	Quote
2"	50.80	CRL 16	RLS 15	LRJ 2	Quote
2 1/4"	57.15	CRL 18	RLS 16	LRJ 2 1/4	Quote
2 1/2"	63.50	CRL 20	RLS 17	LRJ 2 1/2	Quote
2 3/4"	69.85	CRL 22	RLS 18	LRJ 2 3/4	Quote
3"	76.20	CRL 24	RLS 19	LRJ 3	Quote
3 1/4"	82.55	CRL 26	RLS 19.1/2	LRJ 3 1/4	Quote
3 1/2"	88.90	CRL 28	RLS 20	LRJ 3 1/2	Quote
3 3/4"	95.25	CRL 30	RLS 20.1/2	LRJ 3 3/4	Quote
4"	101.60	CRL 32	RLS 21	LRJ 4	Quote
4 1/4"	107.95	CRL 34	RLS 21.1/2	LRJ 4 1/4	Quote
4 1/2"	114.30	CRL 36	RLS 22	LRJ 4 1/2	Quote
4 3/4"	120.65	CRL 38	RLS 22.1/2	LRJ 4 3/4	Quote
5"	127.00	CRL 40	RLS 23	LRJ 5	Quote
5 1/2"	139.70	CRL 44	RLS 23.1/2	LRJ 5 1/2	Quote
6"	152.40	CRL 48	RLS 24	LRJ 6	Quote
6 1/2"	165.10	CRL 52	RLS 24.1/2	LRJ 6 1/2	Quote
7"	177.80	CRL 56	RLS 25	LRJ 7	Quote
7 1/2"	190.50	CRL 60	RLS 25.1/2	LRJ 7 1/2	Quote

CRM / RMS / MRJ — Medium series

Heavier section medium-duty inch cylindrical roller bearings.

CRM series inch cylindrical roller bearing equivalents
Bore (inch)	Bore (mm)	SKF	FAG	RHP	Quote
1/2"	12.70	CRM 4	RMS 5	MRJ 1/2	Quote
5/8"	15.88	CRM 5	RMS 7	MRJ 5/8	Quote
3/4"	19.05	CRM 6	RMS 8	MRJ 3/4	Quote
7/8"	22.22	CRM 7	RMS 9	MRJ 7/8	Quote
1"	25.40	CRM 8	RMS 10	MRJ 1	Quote
1 1/8"	28.57	CRM 9	RMS 11	MRJ 1 1/8	Quote
1 1/4"	31.75	CRM 10	RMS 12	MRJ 1 1/4	Quote
1 3/8"	34.92	CRM 11	RMS 12.1/2	MRJ 1 3/8	Quote
1 1/2"	38.10	CRM 12	RMS 13	MRJ 1 1/2	Quote
1 5/8"	41.27	CRM 13	RMS 13.1/2	MRJ 1 5/8	Quote
1 3/4"	44.45	CRM 14	RMS 14	MRJ 1 3/4	Quote
1 7/8"	47.63	CRM 15	RMS 14.1/2	MRJ 1 7/8	Quote
2"	50.80	CRM 16	RMS 15	MRJ 2	Quote
2 1/4"	57.15	CRM 18	RMS 16	MRJ 2 1/4	Quote
2 1/2"	63.50	CRM 20	RMS 17	MRJ 2 1/2	Quote
2 3/4"	69.85	CRM 22	RMS 18	MRJ 2 3/4	Quote
3"	76.20	CRM 24	RMS 19	MRJ 3	Quote
3 1/4"	82.55	CRM 26	RMS 19.1/2	MRJ 3 1/4	Quote
3 1/2"	88.90	CRM 28	RMS 20	MRJ 3 1/2	Quote
3 3/4"	95.25	CRM 30	RMS 20.1/2	MRJ 3 3/4	Quote
4"	101.60	CRM 32	RMS 21	MRJ 4	Quote
4 1/4"	107.95	CRM 34	RMS 21.1/2	MRJ 4 1/4	Quote
4 1/2"	114.30	CRM 36	RMS 22	MRJ 4 1/2	Quote
4 3/4"	120.65	CRM 38	RMS 22.1/2	MRJ 4 3/4	Quote
5"	127.00	CRM 40	RMS 23	MRJ 5	Quote
5 1/2"	139.70	CRM 44	RMS 23.1/2	MRJ 5 1/2	Quote
6"	152.40	CRM 48	RMS 24	MRJ 6	Quote
6 1/2"	165.10	CRM 52	RMS 24.1/2	MRJ 6 1/2	Quote
7"	177.80	CRM 56	RMS 25	MRJ 7	Quote
7 1/2"	190.50	CRM 60	RMS 25.1/2	MRJ 7 1/2	Quote

CFL / RL.L / LRJA — Light series — flanged inner (lip) type

Light-series inch roller bearings with lipped races for light axial location.

CFL series inch cylindrical roller bearing equivalents
Bore (inch)	Bore (mm)	SKF	FAG	RHP	Quote
1/2"	12.70	CFL 4	RL.L 5	LRJA 1/2	Quote
5/8"	15.88	CFL 5	RL.L 7	LRJA 5/8	Quote
3/4"	19.05	CFL 6	RL.L 8	LRJA 3/4	Quote
7/8"	22.22	CFL 7	RL.L 9	LRJA 7/8	Quote
1"	25.40	CFL 8	RL.L 10	LRJA 1	Quote
1 1/8"	28.57	CFL 9	RL.L 11	LRJA 1 1/8	Quote
1 1/4"	31.75	CFL 10	RL.L 12	LRJA 1 1/4	Quote
1 3/8"	34.92	CFL 11	RL.L 12.1/2	LRJA 1 3/8	Quote
1 1/2"	38.10	CFL 12	RL.L 13	LRJA 1 1/2	Quote
1 5/8"	41.27	CFL 13	RL.L 13.1/2	LRJA 1 5/8	Quote
1 3/4"	44.45	CFL 14	RL.L 14	LRJA 1 3/4	Quote
1 7/8"	47.63	CFL 15	RL.L 14.1/2	LRJA 1 7/8	Quote
2"	50.80	CFL 16	RL.L 15	LRJA 2	Quote
2 1/4"	57.15	CFL 18	RL.L 16	LRJA 2 1/4	Quote
2 1/2"	63.50	CFL 20	RL.L 17	LRJA 2 1/2	Quote
2 3/4"	69.85	CFL 22	RL.L 18	LRJA 2 3/4	Quote
3"	76.20	CFL 24	RL.L 19	LRJA 3	Quote
3 1/4"	82.55	CFL 26	RL.L 19.1/2	LRJA 3 1/4	Quote
3 1/2"	88.90	CFL 28	RL.L 20	LRJA 3 1/2	Quote
3 3/4"	95.25	CFL 30	RL.L 20.1/2	LRJA 3 3/4	Quote
4"	101.60	CFL 32	RL.L 21	LRJA 4	Quote
4 1/4"	107.95	CFL 34	RL.L 21.1/2	LRJA 4 1/4	Quote
4 1/2"	114.30	CFL 36	RL.L 22	LRJA 4 1/2	Quote
4 3/4"	120.65	CFL 38	RL.L 22.1/2	LRJA 4 3/4	Quote
5"	127.00	CFL 40	RL.L 23	LRJA 5	Quote
5 1/2"	139.70	CFL 44	RL.L 23.1/2	LRJA 5 1/2	Quote
6"	152.40	CFL 48	RL.L 24	LRJA 6	Quote
6 1/2"	165.10	CFL 52	RL.L 24.1/2	LRJA 6 1/2	Quote
7"	177.80	CFL 56	RL.L 25	LRJA 7	Quote
7 1/2"	190.50	CFL 60	RL.L 25.1/2	LRJA 7 1/2	Quote

CFM / RM.L / MRJA — Medium series — flanged inner (lip) type

Medium-series inch roller bearings with lipped races for light axial location.

CFM series inch cylindrical roller bearing equivalents
Bore (inch)	Bore (mm)	SKF	FAG	RHP	Quote
1/2"	12.70	CFM 4	RM.L 5	MRJA 1/2	Quote
5/8"	15.88	CFM 5	RM.L 7	MRJA 5/8	Quote
3/4"	19.05	CFM 6	RM.L 8	MRJA 3/4	Quote
7/8"	22.22	CFM 7	RM.L 9	MRJA 7/8	Quote
1"	25.40	CFM 8	RM.L 10	MRJA 1	Quote
1 1/8"	28.57	CFM 9	RM.L 11	MRJA 1 1/8	Quote
1 1/4"	31.75	CFM 10	RM.L 12	MRJA 1 1/4	Quote
1 3/8"	34.92	CFM 11	RM.L 12.1/2	MRJA 1 3/8	Quote
1 1/2"	38.10	CFM 12	RM.L 13	MRJA 1 1/2	Quote
1 5/8"	41.27	CFM 13	RM.L 13.1/2	MRJA 1 5/8	Quote
1 3/4"	44.45	CFM 14	RM.L 14	MRJA 1 3/4	Quote
1 7/8"	47.63	CFM 15	RM.L 14.1/2	MRJA 1 7/8	Quote
2"	50.80	CFM 16	RM.L 15	MRJA 2	Quote
2 1/4"	57.15	CFM 18	RM.L 16	MRJA 2 1/4	Quote
2 1/2"	63.50	CFM 20	RM.L 17	MRJA 2 1/2	Quote
2 3/4"	69.85	CFM 22	RM.L 18	MRJA 2 3/4	Quote
3"	76.20	CFM 24	RM.L 19	MRJA 3	Quote
3 1/4"	82.55	CFM 26	RM.L 19.1/2	MRJA 3 1/4	Quote
3 1/2"	88.90	CFM 28	RM.L 20	MRJA 3 1/2	Quote
3 3/4"	95.25	CFM 30	RM.L 20.1/2	MRJA 3 3/4	Quote
4"	101.60	CFM 32	RM.L 21	MRJA 4	Quote
4 1/4"	107.95	CFM 34	RM.L 21.1/2	MRJA 4 1/4	Quote
4 1/2"	114.30	CFM 36	RM.L 22	MRJA 4 1/2	Quote
4 3/4"	120.65	CFM 38	RM.L 22.1/2	MRJA 4 3/4	Quote
5"	127.00	CFM 40	RM.L 23	MRJA 5	Quote
5 1/2"	139.70	CFM 44	RM.L 23.1/2	MRJA 5 1/2	Quote
6"	152.40	CFM 48	RM.L 24	MRJA 6	Quote
6 1/2"	165.10	CFM 52	RM.L 24.1/2	MRJA 6 1/2	Quote
7"	177.80	CFM 56	RM.L 25	MRJA 7	Quote
7 1/2"	190.50	CFM 60	RM.L 25.1/2	MRJA 7 1/2	Quote

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Send the number stamped on your old bearing, or bore × OD × width. SLS sources inch-series roller bearings from India and overseas and confirms the exact equivalent before dispatch.

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Brand names and catalogue numbers are used only for size cross-reference and remain the property of their owners. SLS is not affiliated with them. Always confirm dimensions against your existing bearing; stock is confirmed only when quoted.