33000 Series-Products-UMZ Bearing Manufacture Co.,Ltd.

UMZ Metric Tapered Roller Bearings

1. Product Overview
UMZ metric tapered roller bearings are designed and manufactured in accordance with ISO standards. With tapered raceways on both the inner and outer rings, these bearings can carry combined loads (radial and single-direction axial loads). Their separable design allows the cone assembly (inner ring, rollers, and cage) and the cup (outer ring) to be mounted independently, ensuring convenient installation and adjustment.

2. Design Features

Adjustable contact angle – preload and clearance can be adjusted to optimize stiffness and bearing life.
High load capacity – long rollers with large contact areas provide excellent performance under heavy loads.
Low friction operation – precision-ground raceways and roller ends reduce heat and wear.
Global interchangeability – fully compliant with international metric standards, ensuring compatibility with major global brands.

3. Common Metric Series
UMZ offers a wide range of metric tapered roller bearings to meet diverse applications:

30000 Series – lightweight design, ideal for automotive transmissions and small machinery.
31000 Series – higher load capacity, widely used in trucks and tractors.
32000 Series – versatile series, suitable for automotive wheel hubs and construction equipment.
33000 Series – extra capacity for heavy-duty machinery and industrial gearboxes.
33100 / 33200 Series – larger contact angle, optimized for higher axial loads.

4. Applications

Automotive: wheel hubs, transmissions, differentials, and driveline systems.
Industrial machinery: gearboxes, reducers, pumps, compressors.
Construction & mining equipment: crushers, conveyors, cranes.
Heavy-duty industries: steel mills, port machinery, wind turbines.

5. Quality & Standards

Material: premium GCr15 (100Cr6) high carbon chromium bearing steel.
Heat treatment: advanced vacuum hardening for durability and wear resistance.
Precision grades: ISO 492 standards, available in P0, P6, and P5.
Certifications: UMZ production facilities are certified to ISO 9001 and IATF 16949, ensuring global automotive and industrial quality compliance.

6. UMZ Advantages

Complete range of metric tapered roller bearings for automotive and industrial needs.
Precision engineering for low noise, high reliability, and long service life.
OEM/ODM support, customized solutions available.
Strong export experience – UMZ bearings are trusted in over 60 countries worldwide.

select	Inquiry	Bearing No.	Dimensions （mm）			Basic Load Rating（KN）		Pu	Rotation Speed（rpm）		Weight (Kg)	ISO335	Dimensions （mm）							Installation Dimensions（mm）									Value
select	Inquiry	Bearing No.	d1	D	B	Cr	Cor	Pu	Speed Grade	Speed Limit	Weight (Kg)	Dimensions (ABMA)	d	d1～	B	C	r1,2(min)	r3,4(min)	a	da(max)	db(min)	Da(min)	Da(max)	Db(min)	Ca(min)	Cb(min)	ra(max)	rb(max)	e	Y	Yo
		33022	110	170	47	281	500	53	2600	3600	3,85	2DE	110	139	47	37	2,5	2	34	123	121	152	160	161	7	10	2	2	0,28	2,1	1,1
		33024	120	180	48	292	540	56	2600	3400	4,20	2DE	120	149	48	38	2,5	2	36	132	131	160	170	171	6	10	2	2	0,3	2	1,1
		33030	150	225	59	457	865	86,5	2000	2600	8,15	2EE	150	188	59	46	3	2,5	48	164	162	200	213	217	8	13	2,5	2	0,37	1,6	0,9
		31330XJ2	150	320	82	781	1020	100	1400	2000	29,5	7GB	150	234	75	50	5	4	96	181	170	251	303	300	9	32	4	3	0,83	0,72	0,4
		33021/Q	105	160	43	246	430	45,5	2800	3800	3,05	2DE	105	131	43	34	2,5	2	31	117	116	145	150	153	7	9	2	2	0,28	2,1	1,1
		33020/Q	100	150	39	224	390	41,5	3000	4000	2,40	2CE	100	122	39	32,5	2	1,5	29	109	108	135	142	143	7	6,5	2	1,5	0,3	2	1,1
		33019/Q	95	145	39	220	375	40,5	3200	4300	2,30	2CE	95	118	39	32,5	2	1,5	28	104	104	131	138	139	7	6,5	2	1,5	0,28	2,1	1,1
		33018/Q	90	140	39	216	355	39	3200	4500	2,20	2CE	90	113	39	32,5	2	1,5	27	100	98	127	132	135	7	6,5	2	1,5	0,27	2,2	1,3
		33017/Q	85	130	36	183	310	34,5	3600	4800	1,75	2CE	85	107	36	29,5	1,5	1,5	26	94	92	118	122	125	6	6,5	1,5	1,5	0,3	2	1,1
		33016/Q	80	125	36	168	285	32	3600	5000	1,65	2CE	80	102	36	29,5	1,5	1,5	26	90	87	112	117	119	6	6,5	1,5	1,5	0,28	2,1	1,1
		33015/Q	75	115	31	134	228	26	4000	5300	1,15	2CE	75	95	31	25,5	1,5	1,5	23	84	82	104	108	110	6	5,5	1,5	1,5	0,3	2	1,1
		33014	70	110	31	130	196	22,8	4300	5600	1,10	2CE	70	88,8	31	25,5	1,5	1,5	23	78	77	99	103	105	5	5,5	1,5	1,5	0,28	2,1	1,1
		33013/Q	65	100	27	110	153	17,3	5000	6300	0,78	2CE	65	82,5	27	21	1,5	1,5	21	72	72	89	93	96	5	6	1,5	1,5	0,35	1,7	0,9
		33012/Q	60	95	27	106	143	16	5300	6700	0,71	2CE	60	77,1	27	21	1,5	1,5	20	67	67	85	88	90	5	6	1,5	1,5	0,33	1,8	1
		33011/Q	55	90	27	104	137	15,3	5600	7000	0,67	2CE	55	72,9	27	21	1,5	1,5	19	63	62	81	83	86	5	6	1,5	1,5	0,31	1,9	1,1
		33010/Q	50	80	24	80	102	11,4	6300	8000	0,45	2CE	50	64,9	24	19	1	1	17	56	56	72	74	76	4	5	1	1	0,31	1,9	1,1