Precision Combination Bearings

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Bearing Selection Guide

Part Number	d (mm)	T (mm)	D (mm)	H (mm)	h min-max (mm)	B (mm)	A (mm)	S (mm)	r (mm)	C (kN)	Co (kN)	Ca (kN)	Coa (kN)	Reference Drawing	Profile Type
PR4.054	30	42	64.8	37.5	30.5	20	2.5	20	3	31	35.5	11	11	1	ECC065
PR4.454	30	42	64.8	37.5	30.5-32	20	4	20	3	31	35.5	11	11	2	ECC065
PR4.055	35	48	73.8	44	36	23	4	20	4	45.5	51	13	14	1	ECC074
PR4.455	35	48	73.8	44	36-37.5	23	4	20	4	45.5	51	13	14	2	ECC074
PR4.056*	40	54	81.8	48	37	23	3.5	26	4	48	56.8	18	18	1	ECC082
PR4.456	40	54	81.8	48	37-38.5	23	3.5	26	4	48	56.8	18	18	2	ECC082
PR4.058*	45	59	92.8	57	44	30	4	26	4	68	72	23	23	1	ECC093
PR4.458	45	59	92.8	57	44-44.5	30	4	26	4	68	72	23	23	2	ECC093
PR4.061*	60	69	111.8	69	55	31	4	30	5	81	95	25	27	1	ECC112
PR4.461	60	69	111.8	69	55-57	31	4	30	5	81	95	25	27	2	ECC112
PR4.062*	60	80	127.8	72.3	56	37	4.5	34	5	110	132	31	36	1	ECC128
PR4.462	60	80	127.8	72.3	56-60	37	4.5	34	5	110	132	31	36	2	ECC128
PR4.063*	60	108	153.8	78.5	58.5	45	6	34	3	151	192	31	36	1	ECC154
PR4.463	60	108	153.8	78.5	58.5-62.5	45	6	34	3	151	192	31	36	2	ECC154

*PR4056, PR4058, PR4061, PR 4062 and PR4063 are regreasable through a grease fitting on the welding spigot.

Symbol	Definition
C	Dynamic Load
Co	Static Load
Ca	Axial Dynamic Load
Coa	Axial Static Load

Note: Bearings have much higher load ratings than corresponding guide rail profiles. Always make selections based on Hertzian pressure calculations of the rails.