Product photo — see the table below for main specifications; non-standard designs welcome

Deep Groove Ball Bearings with Seals

RS/2RS versions use contact NBR seals for better dust and water protection than shields, filled with high-temperature grease for humid, dusty, low-maintenance duty.

Category	Deep Groove Ball Bearings
Precision class	P0 / P6 / P5 (P4 for precision types)
Clearance group	C0 / C2 / C3 / C4 (by application)
Material	GCr15 high-carbon chromium steel / carburising steel (optional)
Heat treatment	Quenched & tempered, 58–64 HRC, dimensional stabilised
Standards	GB/T 307 / ISO 492 / JB-T (per product)

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Series note: The most widely used rolling bearing: simple, low friction, very high limiting speed, carrying radial and two-direction axial loads. Open, shielded (Z/2Z) and sealed (RS/2RS) variants come g…

Main Specifications

Sample of common models (14 models in total — contact us for the full catalogue)

基本尺寸（mm）				基本额定载荷（KN）		Max.转速（r/min）		安装相关尺寸（mm）
d	D	B	rs min	Cr	Cor	Grease	Oil	Ds(min)	Ds(max)	dh(max)	R(max)
12	28	8	0.3	4.8	2.16	26000	-	14	14.5	26	0.3
20	47	14	1	13	6.7	10000	-	25.6	-	41.4	1
25	47	12	0.6	10.6	5	9500	-	29	31	43	0.6
25	52	15	1	14.3	8	8500	-	30	-	47	1
25	52	15	1	14.3	8	8500	-	30	-	47	1
25	52	15	1	14.3	8	8500	-	30	-	47	1
25	52	15	1	14.3	8	8500	-	30	-	47	1
25	52	15	1	14.3	8	8500	-	30	-	47	1
25	62	17	1.1	22.4	11.5	7500	-	31.5	-	55.5	1
25	62	17	1.1	22.4	11.5	7500	-	31.5	-	55.5	1

Deep Groove Ball Bearings with Seals

Deep Groove Ball Bearings with Seals

Main Specifications

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Deep Groove Ball Bearings with Shields