Outer ring is made of carbon steel and pressed around the inner ring; 
Inner ring is made of the carbon chromium steel and hardened. Spherical 
surface of inner ring hard chrome plated.

Sliding contact surfaces:    Steel / Steel
Bearing  Code
	Diemensions(mm)								Load  ratings KN
	d	D	B	C	dk	rs	rls	≈a°			Weight
						min	min		Dyn-amic	Static	≈Kg
GEFZ4S	4.83	14.29	7.14	5.54	10.31	0.3	0.38	11	3	15	0.006
GEFZ6S	6.35	16.67	8.71	6.35	12.7	0.3	0.56	13.5	4.4	22	0.01
GEFZ7S	7.94	19.05	9.53	7.14	14.27	0.3	0.81	12	6	28	0.014
GEFZ9S	9.53	20.64	10.31	7.92	16.66	0.3	0.81	10	7.4	37	0.018
GEFZ11S	11.11	23.02	11.1	8.71	17.45	0.3	0.81	8	8.4	42	0.021
GEFZ12S	12.7	25.4	12.7	9.91	20.65	0.3	0.81	9.5	12	58	0.029
GEFZ14S	14.29	27.78	14.27	11.1	23.01	0.3	0.81	9.5	15	73	0.042
GEFZ15S	15.88	30.16	15.88	12.7	25.4	0.3	0.81	9.5	19	94	0.053
GEFZ19S	19.05	36.51	19.05	15.06	30.15	0.3	1.12	9	28	141	0.094
GEFZ22S	22.23	39.69	22.23	17.86	33.32	0.6	1.12	9.5	37	186	0.119
GEFZ25S	25.4	44.45	25.4	20.24	38.1	0.6	1.12	10	49	245	0.173
Remark:
1.The listed load rating,  unit weight is for reference.