Sealmaster MSF Series Medium Duty Four-Bolt Flange Units - Setscrew Locking Catalog Page
®
Mtd. Ball
Bearings
Performance Mounted Ball Bearings
Duty: Medium
Rolling Elements: Ball
A
B
Housing: Cast Iron Four Bolt Flange
Self Alignment: +/- 2 Degrees
Lock: Setscrew
LM
Seal: Felt
Optional Seal: Contact
Temperature: -20° to 220°F
MSF Series Medium Duty Four-Bolt Flange Units - Setscrew Locking
Bore Diameter
Part No.
inch mm
15/16 MSF-15 3-015
1 MSF-16 3-1
25 MSF-305 5305
1 3/16 MSF-19 3-13
1 1/4 MSF-20 2-14
30 MSF-306 5306
1 7/16 MSF-23 3-17
35 MSF-307 5307
1 1/2 MSF-24 3-18
40 MSF-308 5308 2.72
1 11/16 MSF-27 3 -111
1 3/4 MSF-28 3-112
45 MSF-309 5309
1 15/16 MSF-31 3-115
2 MSF-32 2-2
50 MSF-310 5310
2 3/16 MSF-35 3-23
2 1/4 MSF-36 2-24
55 MSF-311 5311
2 7/16 MSF-39 3-27
2 1/2 MSF-40 3-28
65 MSF-313 5313
2 11/16 MSF-43 3-211
70 MSF-314 5314
2 15/16 MSF-47 3-215
3 MSF-48 3-3
75 MSF-315 5315
3 3/16 MSF-51 3-33
3 1/4 MSF-52 2-34
80 MSF-316 5316
3 7/16 MSF-55 3-37
3 1/2 MSF-56 3-38
3 15/16 MSF-63 3-315
4 MSF-64 3-4
100 MSF-320 5320
4 7/16 MSFD-71 3-47D
4 15/16 MSFD-79 3-415D 32
Bearing
Insert
No.
Basic
Dynamic
Rating
lb/N
4381
19487
5782
25718
7340
32648
7901
35144
7889
35090
9752
43377
11789
52437
13971
62143
14839
66004
17412
77449
18681
83093
21566
95926
29905
133017
37482
166720
A B* D G H J N L M
4 1/4
108.0
4 5/8
117.5
5 1/8
130.24 101.6
5 3/8
136.5
5 5/8
142.9
6 3/8
161.9
6 7/8
174.6
7 3/8
187.3
7 3/4
196.96 152.4
7 3/4
196.96 152.4
8 7/16
214.3
8 7/16
214.3
10 9/16
268.3
12 3/4
323.9
3 1/4
1 11/64
82.6
3 5/8
92.1
4 1/8
104.8
4 3/8
111. 1
5 1/8
130.2
5 5/8
142.9
5 7/8
149.2
6 3/4
171.5
6 3/4
171.53 76.21 25.4
8 5/16
211.1
254.0
10
29.8
1 11/32
34.1
1 1/2
38.1
1 9/16
39.7
1 9/16
39.7
1 3/4
44.5
1 15/16
49.2
2 5/16
58.7
2 3/8
60.31 25.4
2 11/16
68.3
2 3/4
69.91 25.4
3 13/16
96.8
4 3/4
120.7
Dimensions inch / mm
17/32
13/16
13/16
11/16
1 9/16
1 9/16
13.5
9/16
14.3
9/16
14.3
9/16
14.3
9/16
14.3
20.6
20.6
17.53 76.2
7/8
22.2
1 1/4
31.85 127.0
39.76 152.4
39.7
1 3/4
44.5
2 1/64
51.2
2 3/64
52.0
2 5/32
54.8
2 5/16
58.7
2 11/16
68.3
3 3/16
81.0
3 1/2
88.9
3 17/32
89.7
3 31/32
100.8
1 1/2
38.1
1 11/16
42.9
1 15/16
49.2
1 15/16
49.2
2 1/32
51.6
2 3/16
55.6
2 9/16
65.11 25.4
2 3/4
69.9
3 1/16
77.8
3 1/4
82.6
3 3/8
1 11/32
85.7
3 25/32
96.0
4 5/8
1 15/16
117.5
5 3/4
146.1
5/8
15.9
11/16
17.5
3/4
19.1
3/4
19.1
3/4
19.1
7/8
22.2
1 1/16
27.0
1 5/16
33.3
1 5/16
33.3
34.1
1 9/16
39.7
49.2
2 7/8
73.0
1 19/32
40.5
1 55/64
47.2
2 1/16
52.4
2 19/64
58.3
2 15/32
62.7
2 23/32
69.1
2 63/64
75.8
3 7/16
87.3
3 41/64
92.5
3 59/64
99.6
4 5/32
105.6
4 25/64
.5
111
5 11/64
131.4
6 11/32
161.1
Core
3 7/32
3 23/32
4 5/64
103.6
4 21/64
109.9
4 33/64
114.74 101.6
5 3/16
131.8
5 7/16
138.15 127.0
6 1/8
155.6
6 1/2
165.1
6 3/4
171.5
7 1/4
184.26 152.4
7 3/4
196.9
9 1/4
235.0
11 1/2
292.1
81.8
94.5
2 7/8
73.0
3 5/16
84.1
3 1/2
88.9
3 7/8
98.4
4 1/4
108.0
5 10/77
130.3
5 22/25
149.4
5 14/25
141.2
6 22/71
160.3
7 11/25
189.0
9 1/2
241.3
T
Bolt
Size
7/16
1/2
1/2
9/16
9/16
5/8
5/8
5/8
3/4
3/4
3/4
7/8
1
1 1/4
H
J
N
D
Unit Wt.
G
lb/kg
3.6
1.63
4.1
1.86
5.5
2.49
6.0
6.8
3.08
10.5
4.76
12.1
5.49
16.4
7.44
20.6
9.34
21.4
9.71
26.7
12.11
30.0
13.61
55.1
24.99
115.0
52.16
T
Units MSFD-71 and MSFD-79 are equipped with four set screws: two on each end of inner race extensions.
Units MSFD-71 and MSFD-79 are not available with contact seal.
*To obtain bolt circle, multiply B x 1.414”.
For Medium Duty Bearing Inserts-Single Lock see page G-95.
For Medium Duty Bearing Inserts-Double Lock see page G-97.
Metric dimensions for reference only.
Not all parts are available from stock. Please contact customer service for availability (800) 626-2120.
For more information on bearing capabilities outside of our standard offering, please contact Application Engineering (800) 626-2093.
G-51
Bearing Selection
Page G-3
Nomenclature Aid
Page G-18
Features & Benets
Page G-21
Product Options
Page G-23
Technical Engineering
Page G-220
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