What are the key factors to consider when selecting KRE series bearings for my application?

When selecting KRE series crossed roller bearings, consider the load requirements, precision needs, and operating environment of your application. The high load capacity and P4 precision rating make them suitable for heavy-duty and precision applications. Additionally, consider the temperature range to ensure the bearings can withstand the conditions of your specific use case.

How do I ensure the longevity of KRE series bearings in my machinery?

To ensure the longevity of KRE series bearings, proper installation is crucial. Ensure that the bearings are correctly aligned and that the machinery is well-maintained to avoid debris and contamination. Regular lubrication and monitoring of operating temperatures can also significantly extend the service life of these bearings.

KRE Series Crossed Roller Bearings

Precision and Durability for Heavy Industries

The KRE series crossed roller bearings are engineered for high precision and load-bearing applications in mechanical engineering. These bearings are designed to meet the demands of industries such as aerospace, heavy machinery, and precision instruments where reliability and performance are paramount.

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KRE Series Cross‑Roller Bearing Parameters

Bearing Model	Inner Diameter d (mm)	Outer Diameter D (mm)	Width B, B1 (mm)	Chamfer r (mm)	Pitch Circle Diameter Dwp (mm)	Shaft Shoulder ds (mm)	Housing Shoulder Dh (mm)	Weight (kg)	Dynamic Load Rating Cr (kN)	Static Load Rating Cor (kN)
KRE2008	20	36	8	0.5	27	23.5	30.5	0.04	3.23	3.1
KRE2508	25	41	8	0.5	32	28.5	35.5	0.05	3.63	3.83
KRE3010	30	55	10	0.6	41.5	37	47	0.12	7.35	8.36
KRE3510	35	60	10	0.6	46.5	41	51.5	0.13	7.64	9.12
KRE4010	40	65	10	0.6	51.5	47.5	57.5	0.16	8.33	10.6
KRE4510	45	70	10	0.6	56.5	51	61.5	0.17	8.62	11.3
KRE5013	50	80	13	0.6	64	57.4	72	0.27	16.7	20.9
KRE6013	60	90	13	0.6	74	68	82	0.3	18	24.3
KRE7013	70	100	13	0.6	84	78	92	0.35	19.4	27.7
KRE8016	80	120	16	0.6	98	91	111	0.7	30.1	42.1
KRE9016	90	130	16	0.6	108	98	118	0.75	31.4	45.3
KRE10016	100	140	16	1	119.3	109	129	0.83	31.7	48.6
KRE10020	100	150	20	1	123	113	133	1.45	33.1	50.9
KRE11012	110	135	125	0.6	121.8	117	127	0.4	12.5	24.1
KRE11015	110	145	15	0.6	126.5	122	136	0.75	27.3	41.5
KRE11020	110	160	20	1	133	12	143	1.56	34	54
KRE12025	120	180	25	1.5	148.7	133	164	2.62	66.9	100
KRE13015	130	160	15	0.6	144.5	137	152	0.72	25	46.7
KRE13025	130	190	25	1.5	158	143	174	2.82	69.5	107
KRE14016	140	175	16	0.6	154.8	147	162	1	25.9	50.1
KRE14025	140	200	25	1.5	168	154	185	2.96	74.8	121
KRE15013	150	180	13	0.6	164	157	172	0.68	27	53.5
KRE15025	150	210	25	1.5	178	164	194	3.16	76.8	128
KRE15030	150	230	30	1.5	188	173	211	5.3	100	156
KRE16025	160	220	25	1.5	188.6	173	204	3.14	81.7	135
KRE17020	170	220	20	1.5	191	184	198	2.21	29	62.1
KRE18025	180	240	25	1.5	210	195	225	3.44	84	143
KRE19025	190	240	25	1.5	212	202	222	2.99	41.7	82.9
KRE20025	200	260	25	1	230	215	245	4	84.2	157
KRE20030	200	280	30	1.5	240	221	258	6.7	114	200
KRE20035	200	295	35	2	247.7	225	270	9.6	151	252
KRE22025	220	280	25	2	250.1	235	265	4.1	92.3	171
KRE24025	240	300	25	2	269	256	281	4.5	68.3	145
KRE25025	250	310	25	2	277.5	265	290	5	69.3	150
KRE25030	250	330	30	2.5	287.5	269	306	8.1	126	244
KRE25040	250	355	40	2.5	300.7	275	326	14.8	195	348
KRE30025	300	360	25	1.5	329	315	340	5.9	76.3	178
KRE30035	300	395	35	2.5	345	322	368	13.4	183	367
KRE30040	300	405	40	2.5	351.6	326	377	17.2	212	409
KRE35020	350	400	20	1	373.4	363	383	3.9	54.1	143
KRE40035	400	480	35	2.5	440.3	422	459	14.5	156	370
KRE40040	400	510	40	2.5	453.4	428	479	23.5	241	531
KRE45025	450	500	25	1	474	464	484	6.6	61.7	182
KRE50025	500	550	25	1	524.2	514	534	7.3	65.5	201
KRE50040	500	600	40	2.5	548.8	526	572	26	239	607
KRE50050	500	625	50	2.5	561.6	536	587	41.7	267	653
KRE60040	600	700	40	3	650	627	673	29	264	721

Why Choose KRE Series for Heavy-Duty Applications?

The KRE series crossed roller bearings are specifically designed to handle heavy loads and provide high precision, making them ideal for applications in the mechanical engineering sector. These bearings feature a chrome steel construction that ensures durability and resistance to high stress. The P4 class precision rating indicates that these bearings are suitable for applications requiring tight tolerances and high rotational accuracy.

Common applications for the KRE series include use in machine tools, precision measuring equipment, and heavy machinery where the bearing must withstand significant loads while maintaining precision. The series is also favored in industries such as aerospace and automotive for applications where reliability and longevity are critical.

Compared to other series, the KRE series stands out with its ability to accommodate both high radial and axial loads simultaneously, offering a compact design that saves space in machinery. This series is also known for its high rigidity and low cross-sectional height, which is beneficial for applications where space is at a premium.

High load capacity due to the use of chrome steel and optimized design.
P4 precision rating ensures minimal tolerance for high-precision applications.
Compact and rigid design for space-saving in machinery.

Technical Specifications and Advantages

STEP 1

High Load Capacity

The KRE series crossed roller bearings are designed to handle heavy loads due to their chrome steel construction and optimized roller arrangement, making them suitable for applications such as heavy machinery and industrial equipment.

STEP 2

P4 Precision Rating

With a P4 precision rating, these bearings ensure minimal tolerance and high accuracy, critical for precision machinery and equipment that demands high standards of accuracy and repeatability.

STEP 3

Compact Design

The KRE series offers a compact design with a low cross-sectional height, which is beneficial for applications where space is limited, such as in precision instruments and high-density machinery.

STEP 4

Temperature Resistance

These bearings are capable of operating in a wide temperature range from -30°C to 120°C, making them suitable for both cold and hot environments, which is essential for various industrial applications.