• Model NO.：RNA 6910-58X72X40+ IR 50x58x40
• Specification：Cutomized Packing
• Trademark：SGJ
• Origin：China
• HS Code：8482109000
• Production Capacity：1000000sets,Year

Fw

58mm

D

72mm

C

40mm

Mass

0.31kgs

Material

Gcr15 steel bearing

Bearing type

Needle roller bearing

Bearing number of row

Double row

Cage type

Steel cage, flat cage

Precision rate

Grade p4 p5 p6 p0 abec5

Needle type

with machined rings, no inner ring

Shaft Dia.Model No.DCr_sminDa maxDyn. CSta. CRotation Speed rpmWeight5RNA49311100.159.82420195080 0004.66RNA49412100.1510.82700232070 0005.37RNA49513100.1511.82960269060 0005.98RNA49615100.1513.83960342050 0007.49RNA49717100.1515.84530365045 0009.310RNA49819110.217.46180503040 00012.612RNA49920110.3186600631035 00013.614RNA490022130.32092301010030 00016.516RNA490124130.32296601110025 00018.116RNA690124220.322171002300025 0003018RNA49/1426130.324106001280020 00019.920RNA490228130.326109001380020 00021.520RNA690228230.326193002880020 0003722RNA490330130.328117001560018 00023.522RNA690330230.328208003250018 00040.525RNA490437170.335210002500016 00055.525RNA690437300.335354004890016 00095.528RNA49/2239170.337214002890014 00056.528RNA69/2239300.337363005690014 00097.530RNA490542170.340237003070013 0006430RNA690542300.340421006430013 00011132RNA 49/2845170.343245003270012 00076.532RNA 69/2845300.343418006480012 00013335RNA 490647170.345252003470011 00072.535RNA 690647300.345430006900011 00012540RNA 49/3252200.648312004780010 0009640RNA 69/3252360.648535009570010 00017242RNA 490755200.65132000501009 50011342RNA 690755360.651549001000009 50020045RNA 49/3858200.65433600546009 00012048RNA490862220.65841600674008 50015248RNA690862400.658713001350008 50027550RNA49/4265220.66142500703008 00017452RNA490968220.66443500733007 50019752RNA690968400.664746001470007 50035555RNA49/4870220.66644300763007 50018858RNA491072220.66846200821007 00017958RNA 691072400.668792001640007 00032060RNA49/5275220.67147100851006 50020563RNA4911802517557600972006 50026563RNA69118045175987001940006 50047565RNA49/588225177589001010006 00027568RNA49128525180602001050006 00028568RNA691285451801030002110006 000510

IR50x58x40 needle roller bearing inner ring 
 

 

Product name IR50x58x40 needle roller bearing inner ring Bearing number IR50x58x40Inner size 50m Outer size 58mmWidth 40mm  

Bearing No.	d	F	B
Unit	mm	mm	mm
IR35x42x36	35	42	36
IR35x43x22	35	43	22
IR38x43x20	38	43	20
IR38x43x30	38	43	30
IR40x45x17	40	45	17
IR40x45x20	40	45	20
IR40x45x20.5	40	45	20.5
IR40x45x30	40	45	30
IR40x48x22	40	48	22
IR40x48x40	40	48	40
IR40x50x22	40	50	22
IR42x47x20	42	47	20
IR42x47x30	42	47	30
IR45x50x25	45	50	25
IR45x50x25.5	45	50	25.5
IR45x50x35	45	50	35
IR45x52x22	45	52	22
IR45x52x40	45	52	40
IR45x55x22	45	55	22
IR50x55x25	50	55	25
IR50x55x35	50	55	35
IR50x58x22	50	58	22
IR50x58x40	50	58	40
IR50x60x25	50	60	25
IR50x60x28	50	60	28
IR55x60x25	55	60	25
IR55x60x35	55	60	35
IR55x63x25	55	63	25
IR55x63x45	55	63	45
IR55x65x28	55	65	28
IR60x68x25	60	68	25
IR60x68x35	60	68	35
IR60x68x45	60	68	45
IR60x70x25	60	70	25
IR60x70x28	60	70	28
IR65x72x25	65	72	25
IR65x72x45	65	72	45
IR65x73x25	65	73	25
IR65x73x35	65	73	35
IR65x75x28	65	75	28
IR70x80x25	70	80	25
IR70x80x30	70	80	30
IR70x80x35	70	80	35
IR70x80x54	70	80	54
IR75x85x25	75	85	25
IR75x85x30	75	85	30
IR75x85x35	75	85	35
IR75x85x54	75	85	54
IR80x90x25	80	90	25
IR80x90x30	80	90	30
IR80x90x35	80	90	35
IR80x90x54	80	90	54
IR85x95x26	85	95	26
IR85x95x36	85	95	36
IR85x100x35	85	100	35
IR85x100x63	85	100	63
IR90x100x26	90	100	26
IR90x100x30	90	100	30
IR90x100x36	90	100	36
IR90x105x35	90	105	35
IR90x105x63	90	105	63
IR95x105x26	95	105	26
IR95x105x36	95	105	36
IR95x110x35	95	110	35
IR95x110x63	95	110	63
IR100x110x30	100	110	30
IR100x110x40	100	110	40
IR100x115x40	100	115	40
IR110x120x30	110	120	30
IR110x125x40	110	125	40
IR120x130x30	120	130	30
IR120x135x45	120	135	45
IR130x145x35	130	145	35
IR130x150x50	130	150	50
IR140x155x35	140	155	35
IR140x160x50	140	160	50
IR150x165x40	150	165	40
IR160x175x40	160	175	40
IR170x185x45	170	185	45
IR180x195x45	180	195	45
IR190x210x50	190	210	50
IR200x220x50	200	220	50
IR220x240x50	220	240	50
IR240x265x60	240	265	60
IR260x285x60	260	285	60
IR280x305x69	280	305	69
IR300x330x80	300	330	80
IR320x350x80	320	350	80
IR340x370x80	340	370	80
IR360x390x80	360	390	80
IR380x415x100	380	415	100

Needle roller bearings with machined rings are made of carbon chromium bearing steel. supplies these bearings with or without flanges on the outer ring, in a wide range of series and sizes. also supplies them with or without an inner ring.
Combined needle roller bearings comprise a radial needle roller bearing, which is combined with an axial bearing component. These bearings can support radial as well as axial loads with just one bearing and permit locating bearing arrangements with only a small radial design envelope section. They are suitable, for example, where radial and axial loads are present and simple axial contact washers are no longer able to support the axial loads on account of their size, high speeds or inadequate lubrication, and other locating bearings require too much installation space.



Normal Deep groove ball bearings
Gcr15 Single-row deep groove ball bearings are the most common type of rolling bearings. Their use is very widespread. The raceway grooves on both the inner and outer rings have circular arcs of slightly larger radius than that of the balls. In addition to radial loads, axial loads can be imposed in either direction. Because of their low torque, they are highly suitable for applications where high speeds and low power loss are required.
In addition to open type bearings, these bearings often have steel shields or rubber seals installed on one or both sides and are prelubricated with grease. Also, snap rings are sometimes used on the periphery. As to cages, pressed steel ones are the most common.

The characteristics of ceramic bearings
 

1. Corrosion resistance: the material itself has the characteristics of corrosion resistance, can be used in other fields such as strong acid, strong alkali, inorganic, organic salt, sea water, such as: electroplating equipment, electronic equipment, chemical machinery, shipbuilding, medical equipment.

2. High temperature resistance: the ceramic bearing with retainer will not expand due to the temperature difference between 180ºC and 260ºC.The service temperature of zirconia ceramic bearing with full ball is 300-400ºC, which can be used in high temperature equipment such as furnace, plastic making, steel making, etc.  The endurable highest temperature is 1200 centigrade degree.

3. Self-lubrication: ceramic bearing due to the friction coefficient is small, the surface smoothness is better, so it has good self-lubrication performance, especially silicon nitride material lubrication performance is better! So ceramic bearing does not need to add any grease. In the ultra-high vacuum environment, ceramic bearings can overcome the common bearings cannot achieve lubrication problems.

4. Antimagnetic: because there is no magnetic dust absorption, can reduce the bearing spalling in advance, noise and so on. It can be used in demagnetization equipment. Precision instruments and other fields.

5. Electrical insulation: because of high electrical resistance, can avoid arc damage bearing, can be used in a variety of electrical equipment insulation requirements.

6. High Vacuum: Thanks to ceramic material have the unique character of self-lubricating without oil, ceramic bearing can overcome lube difficult problem in super high vacuum, which common bearing can never achieve.

Zirconia Ceramic Bearing
Zirconia Ceramic Bearing, the outer ring and inner ring are made of ZrO2, normally the cage be made by PTFE. Certainly PA66-25, PEEK,PI,AISI, SUS304 ,SUS316 ,Cu all are available in our side. It will show excellence performance as special electrical and magnetism resistance, wear and corrosion resistance ,lubrication and maintenance free when working, especially high and low-temperature application. etc. could be used in awful environment and specially condition.

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