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

Single Row Tapered Roller Bearings

Single row tapered roller bearings take combined radial and one-direction axial loads; separable rings allow independent mounting. Pairs with preset clearance are standard for wheel hubs, spindles, gearboxes and differential supports.

Category	Tapered Roller 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: Tapered roller bearings carry combined radial and axial loads, with the load transmitted along the roller contact angle for high efficiency. Single row types are matched in pairs for preset …

Main Specifications

Sample of common models (26 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）							计算系数
d	D	T	B	C	R_radial	R_axial	r_radial	r_axial	Cr	Cor	Grease	Oil	da(max)	db(min)	Da(min)	Da(max)	Db(min)	Ca(min)	Cb(min)	e	Y	Yo	a
20	47	15	14	12	1	1	1	1	30.5	29.7	8000	11000	28	24	40	43	44	2.5	3	0.35	1.7	0.96	11
20	47	15.25	14	12	1	1	1	1	26.8	26.9	8000	11000	27	26	40	41	43	2.5	3.3	0.35	1.7	0.96	11
20	47	15.25	14	12	1	1	1	1	30	31	8000	11000	28	24	40	43	45	2.5	3.3	0.35	1.7	0.96	11
20	47	19.25	18	15	1	1	1	1	27.5	31	7500	10000	26	24	38	43	44	2	4.3	0.33	1.8	1	12
20	52	16.25	15	13	1.5	1.5	1.5	1.5	32.5	22	8000	11000	28	28	44	45	48	3	3.3	0.3	2	1.1	11
20	52	22.25	21	18	1.5	1.5	1.5	1.5	42	35	7500	10000	26	27	43	45	48	3	4.5	0.3	2	1.1	13
25	47	17	17	14	0.6	0.6	0.6	0.6	32.5	42.5	7500	9500	31	28	40	44	45	2	3	0.29	2.1	1.14	11
25	52	16.25	15	13	1	1	1	1	32	34	7500	9500	31	31	44	46	49	2	3.3	0.37	1.6	0.88	12
25	52	16.25	15	13	1	1	1	1	36	40	7500	9500	32	29	43	48	49	2	3.3	0.37	1.6	0.88	12
25	52	19.25	18	16	1	1	1	1	40.5	46	7000	9500	31	31	44	48	50	2	3.3	0.36	1.7	0.92	13

Single Row Tapered Roller Bearings

Single Row Tapered Roller Bearings

Main Specifications

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