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

Four Row Cylindrical Roller Bearings

Four row cylindrical roller bearings deliver maximum radial capacity in a compact chock and are the standard roll-neck bearing for rolling mills. Quick change-outs keep rolling precision and productivity high.

Category	Cylindrical 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: Line contact between rollers and raceways gives far higher radial capacity and rigidity than same-size ball bearings, with separable rings for easy mounting. The range covers single row (NU/…

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）		安装相关尺寸（mm）
d	D	B	C	r min	r1 min	Fw	Cr	Cor	D1(min)	b(max)	k(max)
90	140	70	70	1.5	1.1	105	253	425	123	6.5	4
90	140	70	70	1.1	1.5	105	275	425	122.6	6.5	4
100	140	70	70	1.5	1.1	111	209	435	125.4	-	-
100	140	70	70	1.5	1.1	111	228	435	125.9	-	-
100	140	70	70	1.1	1.5	111	209	435	125.4	-	-
100	140	104	104	1.5	1.1	111	330	775	125.4	8	4
100	140	104	104	1.1	1.5	111	396	870	125.4	8	4
100	140	104	104	1.5	1.1	111	360	870	125.4	8	4
100	150	106	106	1.1	1.5	113	425	890	132	8	4
110	170	120	120	2	2	127	583	1110	149	6.5	4

Four Row Cylindrical Roller Bearings

Four Row Cylindrical Roller Bearings

Main Specifications

Related Products

Single Row Cylindrical Roller Bearings

Double Row Cylindrical Roller Bearings