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Home Applied
Brands
Regal Rexnord
Boston Gear

Boston Gear

SORT/FILTER

Filter By

category

Open Gears (2,607)
Worm Gear Reducers (2,085)
Plain Bearings (2,059)
Sprockets (1,389)
Sheaves & Pulleys (458)
Pneumatic Cylinders (341)
Synchronous (Timing) Belts (228)
Chain (227)
Rod Ends (220)
Bevel Gear Reducers (206)
Shaft Collars (179)
Flange Units (117)
Pillow Blocks (105)
Ball Bearings (95)
Jaw Couplings (66)
AC Motors & Accessories (64)
Helical (54)
Universal Joints (44)
Roller Bearings (38)
Elastomeric Couplings (18)
Flow Controls & Pressure Regulators (15)
Mufflers & Silencers (13)
Specialty Valves (11)
Take-Ups (11)
Reducer Accessories (9)
Tensioners, Tighteners & Idlers (9)
Hydraulic Cylinders (8)
Torque Limiters & Accessories (6)
DC Motors & Accessories (2)
Hand Tools (1)

brand

Regal Rexnord (58,869)
Boston Gear (58,869)

Bearing Type

Ball Bearing (190)
Radial (80)
Single Cone (20)
Single Cup (18)
Sintered Bronze Bearing (21)
Thrust (15)

Bore Size

0.5 in (209)
0.19 in (16)
0.25 in (208)
0.38 in (2)
0.63 in (4)
0.75 in (340)
0.125 in (52)
0.219 in (6)
0.375 in (155)
0.625 in (305)
0.875 in (157)
0.1875 in (203)
0.3125 in (186)
0.4375 in (37)
0.5625 in (2)
0.6875 in (1)
0.09375 in (1)
0.15625 in (18)
1 in (326)
1.5 in (24)
1.25 in (219)
1.75 in (4)
1.125 in (75)
1.188 in (9)
1.375 in (97)
1.0625 in (10)
1.625 in (3)
1.1875 in (20)
1.3125 in (9)
1.4375 in (4)
1.5625 in (2)
1.6875 in (2)
1.9375 in (2)
2 in (1)
2.5 in (1)

Center Distance

0.94 in (91)
1 1/2 in (13)
1 3/4 in (179)
1 3/8 in (13)
1 in (95)
1.33 in (169)
1.54 in (93)
1.75 in (71)
2 1/16 in (141)
2 3/8 in (75)
2 5/8 in (147)
2.375 in (39)
2.0625 in (65)
2.625 in (69)
3 1/4 in (194)
3 3/4 in (128)
3 in (132)
3.25 in (65)
3.75 in (45)
5 5/32 in (100)
5.15625 in (42)
6 in (118)
N/A (1)

Coupling Size

BF7 (4)
BF10 (5)
BF13 (6)
BF18 (5)
FA5 (3)
FA10 (2)
FA75 (2)
FC12 (3)
FC15 (3)
FC20 (5)
FC25 (8)
FC30 (8)
FC38 (8)
FC45 (4)
FCP21 (5)
FCP23 (6)

Diametral Pitch

3 (27)
4 (54)
5 (59)
6 (241)
7 (4)
8 (340)
10 (303)
12 (316)
14 (14)
16 (324)
18 (4)
19 (4)
20 (234)
24 (222)
30 (5)
32 (223)
48 (206)
64 (27)

Frame

42CZ (78)
56C (283)
56CZ (1)
140TC, 180C (42)
143TC (3)
145TC (7)
180TC, 210C (10)
182TC (5)
184TC (3)
213TC (1)
215TC (1)
N/A (186)
SP (1)
Special (20)

Frame Size

42CZ (48)
56C (504)
140TC, 180C (258)
180TC, 210C (171)
210TC, 250UC (56)
250TC (24)
Shaft Input, Not a C-Face (407)
SP (16)

HP

1 (5)
1 1/2 (5)
1/2 (8)
1/3 (6)
1/4 (17)
1/6 (3)
2 (3)
3 (5)
3/4 (7)
5 (3)
7 1/2 (1)
10 (1)

ID

0.19 in (6)
0.165 in (4)
0.453 in (1)
0.4992 in (1)
1 1/2 in (85)
1 1/4 in (124)
1 1/8 in (72)
1 1/16 in (14)
1 3/4 in (51)
1 3/8 in (43)
1 3/16 in (36)
1 5/8 in (23)
1 5/16 in (18)
1 7/8 in (16)
1 7/16 in (27)
1 9/16 in (5)
1 11/16 in (19)
1 13/16 in (3)
1 15/16 in (20)
1 in (169)
1.012 in (1)
1.496 in (1)
1.3775 in (1)
1/2 in (207)
1/4 in (98)
1/8 in (18)
2 1/2 in (32)
2 1/4 in (26)
2 1/8 in (8)
2 1/16 in (1)
2 3/4 in (17)
2 3/8 in (12)
2 3/16 in (11)
2 5/8 in (9)
2 7/8 in (4)
2 7/16 in (12)
2 11/16 in (3)
2 15/16 in (5)
2 in (57)
2.165 in (1)
2.559 in (1)
3 1/2 in (14)
3 1/4 in (6)
3 3/4 in (6)
3 7/16 in (2)
3 in (27)
3/4 in (184)
3/8 in (122)
3/16 in (42)
4 1/2 in (7)
4 1/4 in (8)
4 3/4 in (1)
4 in (13)
5 1/2 in (4)
5 in (5)
5/8 in (190)
5/16 in (64)
6 1/2 in (3)
6 in (4)
7/8 in (79)
7/16 in (63)
8 in (1)
9/16 in (51)
11/16 in (29)
13/16 in (36)
15/16 in (27)
N/A (18)

Input Shaft or Bore Size

1 1/2 in (51)
1 1/4 in (91)
1 1/8 in (181)
1 3/8 in (92)
1 5/8 in (24)
1 in (83)
1/2 in (234)
3/4 in (102)
3/8 in (63)
5/8 in (873)
5/16 in (75)
7/8 in (396)

Length

1 1/2 in (148)
1 1/4 in (114)
1 1/8 in (12)
1 1/16 in (2)
1 3/4 in (70)
1 3/8 in (16)
1 5/8 in (12)
1 7/8 in (4)
1 7/16 in (1)
1 ft (3)
1 in (235)
1/2 in (57)
1/4 in (11)
1/8 in (3)
2 1/2 in (78)
2 1/4 in (29)
2 1/8 in (5)
2 3/4 in (13)
2 ft (5)
2 in (146)
3 1/2 in (41)
3 1/4 in (8)
3 3/4 in (4)
3 in (108)
3/4 in (103)
3/8 in (33)
4 1/2 in (29)
4 1/4 in (4)
4 3/4 in (3)
4 ft (20)
4 in (65)
5 1/2 in (7)
5 1/4 in (3)
5 in (41)
5/8 in (59)
5/16 in (3)
6 1/2 in (14)
6 1/4 in (5)
6 3/4 in (1)
6 ft (19)
6 in (26)
7 1/4 in (2)
7 in (9)
7/8 in (45)
7/16 in (2)
8 in (4)
9 3/4 in (1)
9 in (1)
9/16 in (27)
11/16 in (2)
13/16 in (2)
13/32 in (1)

Material

303 Stainless Steel (55)
Aluminum (15)
Brass (203)
Bronze (3)
Bronze – C93200 (SAE 660) (727)
Bronze – Oil Impregnated (SAE 841) (570)
Carbon Steel (151)
Cast Bronze SAE660 (C93200) (179)
Cast Iron (236)
Delrin (111)
Glass-Filled Teflon (51)
Hardened Steel (60)
Iron (7)
Molded Delrin (96)
Molded Delrin w/ Brass Inserts (96)
Nickel Plated (12)
Nonmetallic (24)
Nylatron GS (103)
Nylon (23)
Oil Impregnated Bronze SAE 841 (54)
Polyurethane (2)
Rulon® 641 (16)
Soft Steel (36)
Stainless Steel (420)
Steel (833)
Teflon® Filled Acetal (52)
Urethane Spider (6)

Motor Application

Brake Motor, General Purpose (7)
General Purpose (57)
General Purpose, Explosion Proof (2)

No of Teeth

5 (6)
6 (10)
7 (6)
8 (40)
9 (31)
10 (74)
11 (70)
12 (141)
13 (88)
14 (123)
15 (167)
16 (176)
17 (91)
18 (191)
19 (96)
20 (246)
21 (88)
22 (107)
23 (57)
24 (193)
25 (121)
26 (79)
27 (34)
28 (124)
29 (16)
30 (190)
31 (8)
32 (101)
33 (12)
34 (25)
35 (42)
36 (106)
37 (7)
38 (18)
39 (9)
40 (172)
41 (5)
42 (33)
43 (5)
44 (24)
45 (54)
46 (5)
47 (5)
48 (104)
49 (5)
50 (78)
51 (5)
52 (14)
53 (5)
54 (37)
55 (8)
56 (26)
57 (5)
58 (5)
59 (5)
60 (122)
61 (5)
62 (9)
63 (5)
64 (35)
65 (5)
66 (13)
67 (5)
68 (5)
69 (5)
70 (12)
71 (5)
72 (70)
73 (5)
74 (5)
75 (5)
76 (5)
77 (5)
78 (5)
79 (5)
80 (59)
81 (5)
82 (5)
83 (5)
84 (30)
85 (5)
86 (5)
87 (5)
88 (9)
89 (5)
90 (10)
91 (5)
92 (5)
93 (5)
94 (5)
95 (5)
96 (57)
97 (5)
98 (5)
99 (5)
100 (29)
101 (3)
102 (3)
103 (3)
104 (3)
105 (3)
106 (3)
107 (3)
108 (10)
109 (3)
110 (5)
111 (3)
112 (16)
113 (3)
114 (3)
115 (3)
116 (3)
117 (3)
118 (3)
119 (3)
120 (25)
121 (1)
122 (1)
123 (1)
124 (1)
125 (1)
126 (1)
127 (1)
128 (12)
132 (1)
140 (5)
144 (18)
160 (11)
168 (1)
180 (4)
192 (11)
200 (3)
216 (1)

OD

0.5 in (51)
0.7 in (2)
0.8 in (2)
0.9 in (2)
0.25 in (11)
0.75 in (101)
0.375 in (44)
0.469 in (4)
0.625 in (71)
0.656 in (5)
0.694 in (9)
0.805 in (3)
0.859 in (1)
0.875 in (85)
0.902 in (8)
0.906 in (5)
0.3125 in (28)
0.4375 in (31)
0.5625 in (33)
0.6875 in (39)
0.8125 in (63)
0.9375 in (29)
0.28125 in (2)
0.78125 in (2)
0.84375 in (1)
0.90625 in (6)
1 in (105)
1.5 in (103)
1.12 in (11)
1.25 in (94)
1.37 in (12)
1.047 in (1)
1.049 in (6)
1.61 in (13)
1.62 in (14)
1.75 in (94)
1.87 in (2)
1.98 in (1)
1.125 in (73)
1.266 in (1)
1.277 in (8)
1.375 in (74)
1.378 in (2)
1.422 in (1)
1.495 in (7)
1.0625 in (26)
1.625 in (69)
1.745 in (4)
1.781 in (1)
1.875 in (46)
1.891 in (1)
1.902 in (6)
1.938 in (1)
1.939 in (3)
1.1875 in (33)
1.3125 in (31)
1.4375 in (17)
1.5625 in (17)
1.6875 in (12)
1.8125 in (9)
1.8701 in (7)
1.09375 in (5)
1.9375 in (5)
1.65625 in (1)
1.96875 in (2)
2 in (89)
2.5 in (45)
2.12 in (7)
2.016 in (1)
2.25 in (53)
2.37 in (7)
2.48 in (1)
2.62 in (4)
2.067 in (11)
2.75 in (35)
2.76 in (12)
2.87 in (11)
2.125 in (32)
2.152 in (1)
2.328 in (1)
2.375 in (30)
2.402 in (1)
2.469 in (5)
2.531 in (1)
2.0625 in (5)
2.625 in (14)
2.844 in (1)
2.859 in (1)
2.875 in (9)
2.1875 in (9)
2.3125 in (9)
2.4375 in (3)
2.5625 in (7)
2.6875 in (4)
2.09375 in (1)
2.9375 in (3)
2.59375 in (1)
3 in (44)
3.0E-37 (20)
3.5 in (34)
3.25 in (35)
3.068 in (15)
3.75 in (11)
3.76 in (14)
3.125 in (9)
3.265 in (1)
3.375 in (3)
3.543 in (1)
3.625 in (1)
3.1875 in (1)
3.3125 in (1)
3.4375 in (3)
3.9375 in (2)
4 in (25)
4.5 in (21)
4.25 in (20)
4.026 in (14)
4.75 in (9)
4.125 in (1)
4.134 in (1)
5 in (19)
5.5 in (8)
6 in (12)
6.5 in (6)
7 in (8)
7.5 in (6)
8 in (6)
9 in (4)

Output Configuration

Hollow (26)
Hollow Output (189)
Inline Shaft (1)
Left & Right Output (436)
Left Output (930)
Left Solid (13)
Parallel, Opposite Input (35)
Right Output (451)
Right Solid (4)

Output Shaft or Bore Size

1 1/2 in (9)
1 1/4 in (152)
1 1/8 in (285)
1 3/4 in (2)
1 3/8 in (222)
1 3/16 in (13)
1 5/8 in (166)
1 7/16 in (44)
1 15/16 in (21)
1 in (206)
1/2 in (183)
2 1/4 in (118)
2 in (148)
3/4 in (103)
5/8 in (224)
7/8 in (189)

Pitch Diameter

0.4 in (2)
0.5 in (46)
0.6 in (9)
0.7 in (4)
0.8 in (6)
0.9 in (4)
0.25 in (10)
0.43 in (3)
0.65 in (2)
0.67 in (1)
0.68 in (2)
0.75 in (46)
0.86 in (1)
0.87 in (2)
0.93 in (2)
0.125 in (1)
0.167 in (1)
0.188 in (4)
0.208 in (3)
0.281 in (2)
0.287 in (1)
0.292 in (3)
0.312 in (12)
0.333 in (15)
0.335 in (1)
0.344 in (2)
0.359 in (1)
0.375 in (19)
0.396 in (1)
0.417 in (10)
0.419 in (1)
0.438 in (17)
0.458 in (4)
0.469 in (5)
0.479 in (3)
0.521 in (2)
0.525 in (1)
0.537 in (1)
0.542 in (3)
0.558 in (1)
0.562 in (1)
0.575 in (1)
0.583 in (6)
0.604 in (2)
0.625 in (41)
0.637 in (1)
0.646 in (2)
0.656 in (1)
0.667 in (9)
0.688 in (3)
0.708 in (4)
0.716 in (1)
0.718 in (1)
0.729 in (2)
0.765 in (1)
0.771 in (2)
0.792 in (4)
0.833 in (20)
0.837 in (1)
0.875 in (19)
0.917 in (5)
0.938 in (6)
0.956 in (1)
0.958 in (3)
0.4375 in (5)
0.5625 in (8)
0.6875 in (5)
0.8125 in (9)
0.9375 in (12)
1 in (97)
1.1 in (4)
1.2 in (14)
1.3 in (1)
1.4 in (8)
1.05 in (2)
1.5 in (119)
1.6 in (8)
1.7 in (3)
1.8 in (11)
1.9 in (1)
1.14 in (2)
1.15 in (1)
1.25 in (101)
1.35 in (1)
1.37 in (2)
1.041 in (2)
1.042 in (6)
1.45 in (1)
1.55 in (1)
1.65 in (1)
1.075 in (1)
1.75 in (52)
1.083 in (8)
1.85 in (1)
1.86 in (2)
1.95 in (1)
1.125 in (17)
1.168 in (7)
1.312 in (1)
1.313 in (1)
1.333 in (13)
1.375 in (15)
1.416 in (2)
1.433 in (1)
1.438 in (1)
1.563 in (1)
1.0625 in (2)
1.625 in (10)
1.666 in (4)
1.667 in (26)
1.688 in (1)
1.813 in (1)
1.833 in (8)
1.875 in (27)
1.917 in (1)
1.938 in (1)
1.1875 in (2)
1.3125 in (2)
1.5625 in (6)
2 in (155)
2.1 in (2)
2.2 in (2)
2.3 in (2)
2.4 in (13)
2.05 in (1)
2.5 in (119)
2.6 in (2)
2.7 in (2)
2.8 in (8)
2.9 in (2)
2.15 in (1)
2.25 in (29)
2.29 in (2)
2.033 in (3)
2.35 in (1)
2.45 in (1)
2.55 in (1)
2.063 in (1)
2.65 in (1)
2.75 in (13)
2.083 in (12)
2.85 in (1)
2.95 in (1)
2.125 in (3)
2.166 in (2)
2.167 in (1)
2.188 in (1)
2.313 in (1)
2.333 in (13)
2.375 in (1)
2.417 in (1)
2.438 in (1)
2.563 in (1)
2.583 in (1)
2.625 in (2)
2.666 in (1)
2.667 in (12)
2.688 in (1)
2.813 in (1)
2.833 in (1)
2.875 in (2)
2.917 in (1)
2.938 in (1)
3 in (118)
3.1 in (2)
3.2 in (6)
3.3 in (2)
3.4 in (4)
3.05 in (1)
3.5 in (41)
3.6 in (6)
3.7 in (2)
3.8 in (2)
3.9 in (2)
3.15 in (1)
3.25 in (4)
3.33 in (1)
3.35 in (1)
3.45 in (1)
3.55 in (1)
3.063 in (1)
3.65 in (1)
3.75 in (20)
3.083 in (1)
3.85 in (1)
3.95 in (1)
3.125 in (10)
3.167 in (1)
3.188 in (1)
3.313 in (1)
3.333 in (29)
3.375 in (3)
3.417 in (1)
3.438 in (1)
3.563 in (1)
3.583 in (1)
3.625 in (2)
3.667 in (1)
3.688 in (1)
3.813 in (1)
3.833 in (1)
3.875 in (2)
3.917 in (1)
3.938 in (1)
4 in (96)
4.1 in (2)
4.2 in (5)
4.3 in (2)
4.4 in (2)
4.05 in (1)
4.5 in (21)
4.6 in (2)
4.7 in (2)
4.8 in (7)
4.9 in (2)
4.15 in (1)
4.25 in (6)
4.35 in (1)
4.45 in (1)
4.55 in (1)
4.063 in (1)
4.65 in (1)
4.75 in (4)
4.083 in (1)
4.85 in (1)
4.95 in (1)
4.125 in (2)
4.166 in (10)
4.167 in (1)
4.188 in (1)
4.313 in (1)
4.333 in (1)
4.375 in (2)
4.417 in (1)
4.438 in (1)
4.563 in (1)
4.583 in (1)
4.625 in (2)
4.666 in (1)
4.667 in (1)
4.688 in (1)
4.813 in (1)
4.833 in (1)
4.875 in (2)
4.917 in (1)
4.938 in (1)
5 in (87)
5.1 in (2)
5.2 in (2)
5.3 in (2)
5.4 in (3)
5.05 in (1)
5.5 in (13)
5.6 in (4)
5.7 in (2)
5.8 in (2)
5.9 in (2)
5.15 in (1)
5.25 in (6)
5.35 in (1)
5.45 in (1)
5.55 in (1)
5.063 in (1)
5.65 in (1)
5.75 in (4)
5.083 in (1)
5.85 in (1)
5.95 in (1)
5.125 in (2)
5.167 in (1)
5.188 in (1)
5.313 in (1)
5.333 in (4)
5.375 in (2)
5.417 in (1)
5.438 in (1)
5.563 in (1)
5.583 in (1)
5.625 in (2)
5.667 in (1)
5.688 in (1)
5.813 in (1)
5.833 in (1)
5.875 in (2)
5.917 in (1)
5.938 in (1)
6 in (68)
6.1 in (1)
6.2 in (1)
6.3 in (1)
6.4 in (2)
6.5 in (4)
6.6 in (1)
6.7 in (1)
6.8 in (1)
6.9 in (1)
6.25 in (11)
6.063 in (1)
6.75 in (4)
6.083 in (1)
6.125 in (2)
6.167 in (1)
6.188 in (1)
6.313 in (1)
6.333 in (1)
6.375 in (2)
6.417 in (1)
6.438 in (1)
6.563 in (1)
6.583 in (1)
6.625 in (2)
6.666 in (2)
6.667 in (12)
6.688 in (1)
6.813 in (1)
6.833 in (1)
6.875 in (2)
6.917 in (1)
6.938 in (1)
7 in (21)
7.1 in (1)
7.2 in (3)
7.3 in (1)
7.4 in (1)
7.5 in (14)
7.6 in (1)
7.7 in (1)
7.8 in (1)
7.9 in (1)
7.25 in (3)
7.063 in (1)
7.75 in (3)
7.083 in (1)
7.125 in (2)
7.167 in (1)
7.188 in (1)
7.313 in (1)
7.333 in (1)
7.375 in (2)
7.417 in (1)
7.438 in (1)
7.563 in (1)
7.583 in (1)
7.625 in (2)
7.667 in (1)
7.688 in (1)
7.813 in (1)
7.833 in (1)
7.875 in (2)
7.917 in (1)
7.938 in (1)
8 in (33)
8.1 in (1)
8.2 in (1)
8.3 in (1)
8.4 in (2)
8.5 in (3)
8.6 in (1)
8.7 in (1)
8.8 in (1)
8.9 in (1)
8.25 in (2)
8.75 in (2)
8.083 in (1)
8.125 in (1)
8.167 in (1)
8.333 in (6)
8.375 in (1)
8.417 in (1)
8.583 in (1)
8.625 in (1)
8.667 in (1)
8.833 in (1)
8.875 in (1)
8.917 in (1)
9 in (21)
9.1 in (1)
9.2 in (1)
9.3 in (1)
9.4 in (1)
9.5 in (3)
9.6 in (2)
9.7 in (1)
9.8 in (1)
9.9 in (1)
9.25 in (2)
9.75 in (2)
9.083 in (1)
9.125 in (1)
9.167 in (1)
9.333 in (2)
9.375 in (1)
9.417 in (1)
9.583 in (1)
9.625 in (1)
9.667 in (1)
9.833 in (1)
9.875 in (1)
9.917 in (1)
10 in (32)
10.5 in (3)
10.25 in (1)
10.75 in (1)
10.125 in (1)
10.375 in (1)
10.625 in (1)
10.666 in (1)
10.875 in (1)