

IKO BR 101812,BR 122012 MACHINED TYPE NEEDLE ROLLER BEARINGS
IKO BR 101812,BR 122012 Description
Shaft dia. mm (inch) |
Identification number | Mass (Ref.)
g | Boundary dimensions mm(inch) | Standard mounting dimensions mm | |||
Fw | D | C | Da Max. | r (1) as max | |||
15.875 (5╱8) | BR 101812 | 49 | 15.875( 5╱8) | 28.575(1 1╱ 8) | 19.050( 3╱ 4) | 24.5 | 0.6 |
19.050 (3╱4) | BR 122012 BR 122016 | 56 75 | 19.050( 3╱4) 19.050( 3╱4) | 31.750(1 1╱4) 31.750(1 1╱4) | 19.050( 3╱4) 25.400(1 ) | 26.5 26.5 | 1 1 |
22.225 (7╱8) | BR 142212 BR 142216 | 63 84.5 | 22.225( 7╱8) 22.225( 7╱8) | 34.925(1 3╱8) 34.925(1 3╱8) | 19.050( 3╱4) 25.400(1 ) | 29.7 29.7 | 1 1 |
25.400 (1) | BR 162412 BR 162416 | 69 92.5 | 25.400(1 ) 25.400(1 ) | 38.100(1 1╱2) 38.100(1 1╱2) | 19.050( 3╱4) 25.400(1 ) | 32.9 32.9 | 1 1 |
28.575 (11╱8) | BR 182616 BR 182620 | 102 128 | 28.575(1 1╱8) 28.575(1 1╱8) | 41.275(1 5╱8) 41.275(1 5╱8) | 25.400(1 ) 31.750(1 1╱4) | 36 36 | 1 1 |
31.750 (11╱4) | BR 202816 BR 202820 | 110 138 | 31.750(1 1╱4) 31.750(1 1╱4) | 44.450(1 3╱4) 44.450(1 3╱4) | 25.400(1 ) 31.750(1 1╱4) | 39.2 39.2 | 1 1 |
34.925 (13╱8) | BR 223016 BR 223020 | 119 149 | 34.925(1 3╱8) 34.925(1 3╱8) | 47.625(1 7╱8) 47.625(1 7╱8) | 25.400(1 ) 31.750(1 1╱4) | 42.4 42.4 | 1 1 |
38.100 (11╱2) | BR 243316 BR 243320 | 149 187 | 38.100(1 1╱2) 38.100(1 1╱2) | 52.388(2 1╱16) 52.388(2 1╱16) | 25.400(1 ) 31.750(1 1╱4) | 45.1 45.1 | 1.5 1.5 |
41.275 (15╱8) | BR 263516 BR 263520 | 158 199 | 41.275(1 5╱8) 41.275(1 5╱8) | 55.562(2 3╱16) 55.562(2 3╱16) | 25.400(1 ) 31.750(1 1╱4) | 48.3 48.3 | 1.5 1.5 |
44.450 (13╱4) | BR 283716 BR 283720 BR 283820 | 170 215 250 | 44.450(1 3╱4) 44.450(1 3╱4) 44.450(1 3╱4) | 58.738(2 5╱16) 58.738(2 5╱16) 60.325(2 3╱8) | 25.400(1 ) 31.750(1 1╱4) 31.750(1 1╱4) | 51.5 51.5 53.1 | 1.5 1.5 1.5 |
47.625 (17╱8) | BR 303920 | 225 | 47.625(1 7╱8) | 61.912(2 7╱16) | 31.750(1 1╱4) | 54.7 | 1.5 |
Basic dynamic load rating C N | Basic static load rating C0 N | Allowable rotational speed(2)
min-1 |
18 900 | 19 700 | 25 000 |
21 700 | 24 400 | 20 000 |
27 600 | 33 100 | 20 000 |
23 000 | 27 100 | 18 000 |
29 100 | 36 800 | 18 000 |
25 300 | 31 900 | 16 000 |
32 100 | 43 300 | 16 000 |
34 900 | 49 900 | 14 000 |
43 200 | 65 600 | 14 000 |
36 000 | 53 500 | 13 000 |
44 600 | 70 300 | 13 000 |
38 500 | 60 000 | 11 000 |
47 700 | 78 900 | 11 000 |
43 700 | 66 900 | 11 000 |
54 200 | 88 200 | 11 000 |
44 800 | 70 900 | 9 500 |
55 600 | 93 400 | 9 500 |
47 500 | 78 200 | 9 000 |
58 900 | 103 000 | 9 000 |
58 900 | 103 000 | 9 000 |
60 100 | 108 000 | 8 500 |
IKO BR 101812,BR 122012 Nots
Notes(1) Minimum allowable value of chamfer dimension r
(2) Allowable axial shift amount of inner ring to outer ring
(3) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.
Remarks1. The outer ring has an oil groove and an oil hole.
2. No grease is prepacked. Perform proper lubrication.