Modified Stock Gearing - Boston Gear
Modified Stock Gearing - Boston Gear
Modified Stock Gearing - Boston Gear
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Mounted Ball Bearings<br />
MBP Series<br />
Piloted Flanged Units – Medium Duty; Extended Inner Race – Setscrew Locking<br />
F<br />
Features —<br />
One-piece high grade cast iron housing.<br />
Deep groove ball bearings for high radial and thrust loads.<br />
Precision machined housing bore and spherical outer race for full self-alignment.<br />
Synthetic lip type seal with steel flinger.<br />
Positive locking by setscrews through extended inner race.<br />
1/4-28 threaded grease fitting and channel through outer race allow relubrication.<br />
J<br />
B SQUARE<br />
A SQUARE<br />
N<br />
F<br />
STANDARD TOLERANCES<br />
Dimensions<br />
Tolerance<br />
Bore 1-7/16-1-3/4 +.0010 to –.0000<br />
1-15/16-3-1/2 +.0012 to –.0000<br />
K All +.000 to –.002<br />
R<br />
P<br />
E<br />
S<br />
G<br />
L<br />
K<br />
H<br />
M<br />
D<br />
ORDER BY CATALOG NUMBER OR ITEM CODE<br />
Bore<br />
Catalog<br />
Item<br />
Number<br />
Code<br />
1-7/16 MBP-1-7/16 64607<br />
1-1/2 MBP-1-1/2 64608<br />
1-11/16 MBP-1-11/16 64609<br />
1-3/4 MBP-1-3/4 64610<br />
1-15/16 MBP-1-15/16 64611<br />
2 MBP-2 64612<br />
2-3/16 MBP-2-3/16 64613<br />
2-1/4 MBP-2-1/4 64614<br />
2-7/16 MBP-2-7/16 64615<br />
2-1/2 MBP-2-1/2 64616<br />
2-11/16 MBP-2-11/16 64617<br />
2-15/16 MBP-2-15/16 64618<br />
3 MBP-3 64619<br />
3-7/16 MBP-3-7/16 64620<br />
3-1/2 MBP-3-1/2 64621<br />
Bore A B D E<br />
ALL DIMENSIONS IN INCHES<br />
F<br />
R* Approx.<br />
Bolt<br />
G H J K L M N P Setscrew S Weight<br />
UNF<br />
(Lbs.)<br />
1-7/16 4-1/4 3-3/32 1-5/16 1-17/32 7/16 13/32 7/8 4 3-5/8 3/4 7/16 2-1/4 1-27/32 5/16-24 1-9/64 5.5<br />
1-1/2 4-1/4 3-3/32 1-11/32 1-9/16 7/16 3/8 29/32 4 3-5/8 3/4 7/16 2-9/32 2-3/32 5/16-24 1-3/16 6.0<br />
1-11/16<br />
1-3/4 4-15/16 3-5/8 1-3/8 1-11/16 1/2 11/32 15/16 4-1/2 4-1/4 3/4 7/16 2-9/16 2-17/64 5/16-24 1-9/32 6.8<br />
1-15/16<br />
2 5-3/16 3-13/16 1-3/8 1-21/32 1/2 17/32 15/16 4-3/4 4-1/2 7/8 7/16 2-3/4 2-23/32 5/16-24 1-5/16 10.5<br />
2-3/16 5-13/16 4-1/4 1-15/32<br />
2-1/4<br />
1-7/8 1/2 11/16 31/32 5-3/8 5 1 1/2 3-1/16 3-1/32 3/8-24 1-9/16 12.1<br />
2-7/16<br />
2-1/2<br />
6-1/4 4-19/32 1-5/8 2-1/8 1/2 13/16 1-1/8 5-3/4 5-1/2 1-3/16 1/2 3-9/32 3-27/64 3/8-24 1-3/4 16.4<br />
2-11/16 7-1/8 5-5/16 1-21/32 2-5/32 5/8 29/32 1-5/32 6-9/16 6-3/8 1-5/16 1/2 3-11/32 3-43/64 3/8-24 1-3/4 20.6<br />
2-15/16<br />
3 7-1/8 5-5/16 1-7/8 2-3/8 5/8 7/8 1-1/4 6-9/16 6-3/8 1-5/6 5/8 3-23/32 3-7/8 1/2-20 1-15/16 21.4<br />
3-7/16<br />
3-1/2<br />
8-3/8 6-3/32 1-31/32 2-21/32 3/4 1-1/8 1-11/32 7-3/4 7-3/8 1-9/16 5/8 4-5/16 4-25/64 1/2-20 2-7/32 30.0<br />
*2 AT 120°<br />
For Load Ratings, See Engineering Section, Page 237<br />
Replacement Bearings are shown on Page 214.<br />
230 <strong>Boston</strong> <strong>Gear</strong> 800-825-6544 P-1930-BG 04/10
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