贛州NACHI軸承代理商 KOYO 30221JR軸承-杭州中納瑞德軸承有限公司專業(yè)銷售贛州NACHI軸承代理商 KOYO 30221JR軸承
KOYO NJ2324 KOYO NJ2324R KOYO NJ2326 KOYO NJ2326R
KOYO NJ2328 KOYO NJ2328R KOYO NJ232R KOYO NJ2330
KOYO NJ2330R KOYO NJ2332 KOYO NJ2332R KOYO NJ2334
KOYO NJ2336 KOYO NJ2338 KOYO NJ233 KOYO NJ2340
KOYO NJ2310 KOYO NJ2310R KOYO NJ2311 KOYO NJ2311R
KOYO NJ2312 KOYO NJ2312R KOYO NJ2313 KOYO NJ2313R
KOYO NJ2314 KOYO NJ2314R KOYO NJ2315 KOYO NJ2315R
KOYO NJ2316 KOYO NJ2316R KOYO NJ2317 KOYO NJ2317R
KOYO NJ317R KOYO NJ318 KOYO NJ318R KOYO NJ319KOYO NJ248 KOYO NJ252 KOYO NJ256 KOYO NJ260
KOYO NJ305R KOYO NJ306 KOYO NJ306R KOYO NJ307
KOYO NJ307R KOYO NJ308 KOYO NJ308R KOYO NJ309
KOYO 30221JR軸承參數(shù)，KOYO 30221JR軸承尺寸：
邊界尺寸(mm)
d
105
D
190
T
39
B
36
r(min)
3
r1(min)
2.5
基本負(fù)荷率(kN)
Cr
288
C0r
380
極限速度(min-1)
Grease lub.
2000
Oil lub
2600
尺寸(mm)
C
30
負(fù)荷中心
a(mm)
39.0
安裝尺寸(mm)
da(min)
119
db(max)
122
Da(max)
178
Da(min)
165
Db(min)
178
Sa(min)
6
Sb(min)
9
ra(max)
2.5
rb(max)
2
常數(shù)
e
0.42
軸向載荷因素
Y1
1.43
Y0
0.79
（參考）重量(kg)
4.49
