Rl4 Rl5 Rl8 Rl9 Rl0 Automotive Parts Precision Machinery Automotive Transmission Steering Spherical Roller Bearing

• Customization: Available
• Type: Roller
• Material: Chrome Steel Gcr15
• Model NO.: RL4 RL5 RL8 RL9 RL0
• Lubrication: Grease or Oil
• Feature: Long Life / Durable / Low Voice
• Stock Qty: Rich /Great Supplying Ability
• After Service: Within 24 Hours Response
• Main Market: Global
• Delivery Method: Air, Sea, Express
• Precision Rating: P0 P6 P5 P4 P2
• Structure: Spherical/Cylindrical/Deep Groove/Angular Contact
• Transport Package: Industrial or Single Box as Request
• Specification: standard
• Trademark: DOKING
• Origin: China
• HS Code: 84823000
• Production Capacity: 2000000/Year
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 1.340kg

Product Description

PRODUCT DETAILS

 

The RL4, RL5, RL8, RL9, and RL0 series bearings are all light-load needle roller bearings, widely used in industrial automation, automotive components, precision machinery, and other fields. Their design features include a low radial cross-sectional height and strong load-bearing capacity, making them suitable for scenarios with limited space but requiring high radial loads. This series of bearings uses slender needles (with a length-to-diameter ratio of ≥ 3) to increase the contact area and improve the uniformity of load distribution. They are often equipped with stamped steel or engineering plastic cages to optimize the arrangement of the needles and reduce friction and noise. Some models (such as RL5 and RL9) can be selected with steel plate seals or rubber seals to achieve dustproof and waterproof protection and extend service life. The inner diameter size ranges from RL4 (4mm) to RL0 (10mm), and the outer diameter and width are adjusted proportionally with the increase in inner diameter to meet standardized installation space requirements. The default accuracy grade is P0 level, and some models can be customized to P6 level to be suitable for high-precision transmission systems. In terms of application, this series of bearings are commonly found in automotive gearboxes, steering systems, seat adjustment mechanisms, industrial robot joints, conveyor chains, textile machinery, and household appliances such as washing machine drum supports and air conditioning compressor bearings. Technically, they reduce friction coefficients through optimized raceway surface treatment, improve transmission efficiency with dynamic balance design, achieve maximum rotational speeds of over 10,000 rpm (depending on the model), and are compatible with ISO standards, allowing direct replacement with bearings of the same size from other brands. When selecting, it is recommended to choose the appropriate model based on the load direction (radial/axial), speed requirements, and environmental temperature (RL8/RL9 for high-speed scenarios, RL5/RL0 for strong sealing requirements). Precise calculation of the rated dynamic load and static load is required to ensure a safety factor of ≥ 1.5. These bearings, with their lightweight design and reliable performance, provide stable support for precision equipment and are an ideal choice for mechanical engineers to optimize space layout and transmission efficiency.

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CATALOGUE

 

Bearing No.	Dimensions(mm)			Weight	Bearing No.	Dimensions(mm)			Weight
	d	D	B	kg		d	D	B	kg
1203	17	40	12	0.076	1303	17	47	14	0.13
1204	20	47	14	0.12	1304	20	52	15	0.163
1205	25	52	15	0.14	1305	25	62	17	0.257
1206	30	62	16	0.23	1306	30	72	19	0.387
1207	35	72	17	0.32	1307	35	80	21	0.51
1208	40	80	18	0.42	1308	40	90	23	0.715
1209	45	85	19	0.47	1309	45	100	25	0.957
1210	50	90	20	0.525	1310	50	110	27	1.21
1211	55	100	21	0.705	1311	55	120	29	1.58
1212	60	110	22	0.9	1312	60	130	31	1.96
1213	65	120	23	1.15	1313	65	140	33	2.45
1214	70	125	24	1.26	1314	70	150	35	2.99
1215	75	130	25	1.36	1315	75	160	37	3.56
1216	80	140	26	1.67	1316	80	170	39	4.18
1217	85	150	28	2.07	1317	85	180	41	4.98

 

Product model
22205CA/CC/MB/E/K	21305CA/CC/MB/E/K	22206CA/CC/MB/E/K	21306CA/CC/MB/E/K	22207CA/CC/MB/E/K	21307CA/CC/MB/E/K
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23052CA/CC/MB/K	24052CA/CC/MB/K	23152CA/CC/MB/K	24152CA/CC/MB/K	22252CA/CC/MB/K	23252CA/CC/MB/KE/K
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23272CA/CC/MB/K	23976CA/CC/MB/K	23076CA/CC/MB/K	24076CA/CC/MB/K	23176CA/CC/MB/K	24176CA/CC/MB/K
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24184CA/CC/MB/K	23284CA/CC/MB/K	23988CA/CC/MB/K	24892CA/MB/K	23992CA/MB/K	23092CA/MB/K
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240/500CA/MB/K	231/500CA/MB/K	241/500CA/MB/K	232/500CA/MB/K	248/530CA/MB/K	239/530CA/MB/K
230/530CA/MB/K	240/530CA/MB/K	231/530CA/MB/K	241/530CA/MB/K	232/530CA/MB/K	239/560CA/MB/K
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248/670CA/MB/K	239/670CA/MB/K	230/670CA/MB/K	240/670CA/MB/K	231/670CA/MB/K	241/670CA/MB/K
232/670CA/MB/K	238/710CA/MB/K	239/710CA/MB/K	249/710CA/MB/K	230/710CA/MB/K	240/710CA/MB/K
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249/1180CA/MB/K	240/1180CA/MB/K	230/1250CA/MB/K	249/1320CA/MB/K	248/1500CA/MB/K	248/1800CA/MB/K

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