AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
AS9120B, ISO 9001:2015, and FAA 0056B Accredited
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Boston Gear Altra - Industrial Parts and Components Catalog

Showing Page 1 of 107
Part No Category Description QTY RFQ
HML-3 bearings male threaded left hand rod end grade: precision, bore diameter: 0.1900 in, shank thread size: #10-32, no fitting 2077 RFQ
SRF726-5-B9-G mechanical power transmission srf726-5-b9-g 1506 RFQ
GB29 mechanical power transmission change gear 5.0000 in o.d. 1463 RFQ
F718-25-B5-H mechanical power transmission right angle worm gear speed reducer c-face quill, 0.6250 in input size, double output 2412 RFQ
GS42 mechanical power transmission boston geargs42, pinion wire, pitch: 32"", pressure angle: 14.5°, steel, 10 teeth, pitch diameter: 0.312" 1558 RFQ
SBKCF713B-5KP-B5-GS1 mechanical power transmission sbkcf713b-5kp-b5-gs1 2255 RFQ
XR146-3U mechanical power transmission speed reducer shaft steel 2460 RFQ
FC15 9 16 mechanical power transmission jaw coupling hub cplg size: fc15, straight jaw, 0.5625 in bore, finished w/ keyway, steel 2400 RFQ
SB40 bearings solid bar stock oil-impregnated sintered bronze material, 2-1/2 in od, 6-1/2 in overall length 1354 RFQ
X718-3A-50M mechanical power transmission speed reducer replacement part output shaft sub-assembly 2473 RFQ
GF50B mechanical power transmission change gear 10 dp, 14.5 ° pressure angle, 50 teeth, 1.0000 in bushing bore dia., 1.0000 in face width, 5.2000 in o.d. 1230 RFQ
M2226-26 bearings plain sleeve bearing 1.3750 in id, 1.6250 in od, 3.2500 in length, leaded-tin bronze material 1606 RFQ
HS630L mechanical power transmission boston gearhs630l, helical gear, pitch: 6"", pressure angle: 14.5°, steel, 30 teeth left hand, pitch diameter: 5" 1442 RFQ
L501-2 mechanical power transmission gear rack 48 dp, 14.5 ° pressure angle, 1/8 in width, 2 ft oal, steel material 1874 RFQ
41B12-5 8 mechanical power transmission finished bore sprocket 41 / 1/2 in, finished w/ keyway, 0.6250 in bore , 12 teeth, steel material 1351 RFQ
MS36 bearings solid bar stock leaded-tin bronze material, 2-1/4 in od, 13 in overall length 1238 RFQ
G226 mechanical power transmission external tooth spur gear 16 dp, 14.5 ° pressure angle, 0.313 in face, 8 teeth, 5/8 in outside diameter, rough stock, 3/16 in bore, no hub, brass material 2021 RFQ
NFR8 mechanical power transmission boston gearnfr8, stem pinion, pitch: 10"", pressure angle: 14.5°, steel, 8 teeth, pitch diameter: 0.86" 1321 RFQ
F732-30-B7-J mechanical power transmission right angle worm gear speed reducer single reduction, 30:1 ratio, 3.25 in center distance, c-face quill, 0.8750 in input size, right hand output, 140tc, 180c frame 1027 RFQ
M1822-8 bearings plain sleeve bearing 1.1250 in id, 1.3750 in od, 1.0000 in length, leaded-tin bronze material 2926 RFQ
X724-3A-25M mechanical power transmission x724-3a-25m 1815 RFQ
CSC262 mechanical power transmission shaft collar one piece split, steel zinc plated, plain, 2.6250 in id, 4.2500 in od, 0.7500 in wide 2257 RFQ
EN63309-MG pneumatics en63309-mg 2206 RFQ
1603DC bearings radial/deep groove ball bearing round bore, 0.3125 in id, 0.8750 in od, 0.2813 in width, double sealed, c0 internal clearance 2545 RFQ
EN73230-FMG pneumatics modular air lubricator npt 0.3750, metal bowl, flow rate: 60 ft³/min, 3.50 oz oil capacity 1977 RFQ
AO 5 W BRG bearings ball thrust bearing 0.2500 in bore, 0.5625 in od, 0.2188 in width, separable 2606 RFQ
F732-20-B7-H mechanical power transmission right angle worm gear speed reducer single reduction, 20:1 ratio, 3.25 in center distance, c-face quill, 0.8750 in input size, double output, 140tc, 180c frame 1226 RFQ
3014DS bearings radial/deep groove ball bearing round bore, 0.3750 in id, 1.1250 in od, 0.3750 in width, double shielded, c0 internal clearance 2661 RFQ
PA5-034DF150 electrical pa5-034df150 2152 RFQ
41B27 5 8 mechanical power transmission finished bore sprocket 41 / 1/2 in, finished w/ keyway, 0.6250 in bore , 27 teeth, steel material 1320 RFQ
M1624-24 bearings plain sleeve bearing 1.0000 in id, 1.5000 in od, 3.0000 in length, leaded-tin bronze material 1021 RFQ
3M111090 mechanical power transmission 3m, 3 mm pitch, 333 mm overall length, 9 mm width 2465 RFQ
HF721-30K-B5-H1-P16 mechanical power transmission hf721-30k-b5-h1-p16 2757 RFQ
PS-7 8 bearings pillow block ball bearing unit two-bolt base, 0.8750 in bore, steel material, light duty, non-expansion bearing (fixed) 1050 RFQ
55481 mechanical power transmission speed reducer replacement part shim 2464 RFQ
NA70 mechanical power transmission external tooth spur gear 20 dp, 14.5 ° pressure angle, 3/8 in face, 70 teeth, 3.6 in outside diameter, rough stock, 3/8 in bore, hub without keyway or set screw, cast iron material 2638 RFQ
FB57-7 bearings flanged bearing 0.3125 in id, 0.4375 in od, 0.8750 in length, 0.6250 in flg dia., 3/32 in flg thickness, powdered metal material 1248 RFQ
Y2448 mechanical power transmission external tooth spur gear 24 dp, 20 ° pressure angle, 1/4 in face, 48 teeth, 2.083 in outside diameter, rough stock, 5/16 in bore, hub without keyway or set screw, brass material 2423 RFQ
M2028-24 bearings plain sleeve bearing 1.2500 in id, 1.7500 in od, 3.0000 in length, leaded-tin bronze material 2607 RFQ
760-15-G mechanical power transmission right angle worm gear speed reducer solid shaft, left hand output 2442 RFQ
M1014-12 bearings plain sleeve bearing 0.6250 in id, 0.8750 in od, 1.5000 in length, leaded-tin bronze material 1796 RFQ
D1128 mechanical power transmission boston geard1128, worm gear, pitch: 32"", pressure angle: 20°, bronze, threads: 2, 40 teeth, pitch diameter: 1-1/4" 1056 RFQ
HFL-4C bearings female threaded left hand rod end grade: commercial/industrial, bore diameter: 0.2500 in, shank thread size: 1/4-28 in, no fitting 1843 RFQ
60B13-3 4 mechanical power transmission finished bore sprocket 60 / 3/4 in, finished w/ keyway, 0.7500 in bore , 13 teeth, steel material 2101 RFQ
F732-60KE-B5-G1 mechanical power transmission f732-60ke-b5-g1 1622 RFQ
LHB-10 bearings spherical plain bearing 0.6250 in bore, 1.1875 in od, 5/8 in inner ring width, open, precision grade 2882 RFQ
40B11-1 2 mechanical power transmission finished bore sprocket 40 / 1/2 in, finished w/ keyway, 0.5000 in bore , 11 teeth, steel material 1843 RFQ
G235 mechanical power transmission external tooth spur gear 16 dp, 14.5 ° pressure angle, 0.313 in face, 24 teeth, 1-5/8 in outside diameter, rough stock, 5/16 in bore, no hub, brass material 1989 RFQ
M1422-20 bearings plain sleeve bearing 0.8750 in id, 1.3750 in od, 2.5000 in length, leaded-tin bronze material 1398 RFQ
RF732E-20E-B9-J mechanical power transmission rf732e-20e-b9-j 1995 RFQ
1816D 5 8 material handling 1816d-5/8, roll end plain bearing, 5/8""round bore, 1""width, 2.12""outside diameter, straight 1216 RFQ
24P40D 1 material handling 24p40d-1, roll end plain bearing, 1""round bore, 1-1/4""width, 3.068""outside diameter, straight 1008 RFQ
H1212L mechanical power transmission boston gearh1212l, helical gear, pitch: 12"", pressure angle: 14.5°, steel, 12 teeth left hand, pitch diameter: 1" 1410 RFQ
PA5210Y-P mechanical power transmission bevel pinion gear 10 dp, 20 ° pressure angle, 25 teeth, plain, 0.71 in face width 1348 RFQ
PS2-5 8 bearings flange-mount ball bearing unit 2-bolt flange, 0.6250 in bore, steel housing material, light duty, set screw locking, contact seal seal 1518 RFQ
RP2428-16 bearings plain sleeve bearing 1.5000 in id, 1.7500 in od, 2.0000 in length, ptfe lining material 2071 RFQ
EN63330-MG pneumatics modular air lubricator npt 0.3750, metal bowl, flow rate: 40 ft³/min, 7.00 oz oil capacity 1686 RFQ
F726-25KT-B7-J3 mechanical power transmission f726-25kt-b7-j3 2086 RFQ
SSHF724-40KC-B5-HS1- mechanical power transmission sshf724-40kc-b5-hs1-p20 1801 RFQ
SBKCF738B-60EP-B7-JS mechanical power transmission sbkcf738b-60ep-b7-js 2418 RFQ
M2834-28 bearings plain sleeve bearing 1.7500 in id, 2.1250 in od, 3.5000 in length, leaded-tin bronze material 1895 RFQ
F710-10-B4-J mechanical power transmission right angle worm gear speed reducer single reduction, 10:1 ratio, 1.00 in center distance, c-face quill, 0.5000 in input size, right hand output, 42cz frame 2908 RFQ
E621 pneumatics pneumatic muffler 1/8 nptf port size, 1-1/8 in overall length, 7/16 in hex size 2830 RFQ
SSHF726-15KT-B5-HS6- mechanical power transmission sshf726-15kt-b5-hs6-p31 2689 RFQ
NL32B mechanical power transmission external tooth spur gear 4 dp, 14.5 ° pressure angle, 2 in face, 32 teeth, 8-1/2 in outside diameter, rough stock, 1-1/4 in bore, hub without keyway or set screw, cast iron material 1738 RFQ
YA16 mechanical power transmission external tooth spur gear 20 dp, 20 ° pressure angle, 1/2 in face, 16 teeth, 0.9 in outside diameter, rough stock, 3/8 in bore, hub without keyway or set screw, steel material 2234 RFQ
F710-40-B5-H mechanical power transmission right angle worm gear speed reducer single reduction, 40:1 ratio, 1.00 in center distance, c-face quill, 0.6250 in input size, double output, 56c frame 2794 RFQ
1640DC bearings radial/deep groove ball bearing round bore, 0.8750 in id, 2.0000 in od, 0.5625 in width, double sealed, c0 internal clearance 2019 RFQ
G1070RH mechanical power transmission boston gearg1070rh, worm gear, pitch: 8"", pressure angle: 14.5°, cast iron, threads: 1, 20 teeth, face width: 3/4" 1651 RFQ
M1422-16 bearings plain sleeve bearing 0.8750 in id, 1.3750 in od, 2.0000 in length, leaded-tin bronze material 1692 RFQ
18536 mechanical power transmission keyless bushing 0.3750 in id, 0.6250 in od, 1.2500 in ltb 2291 RFQ
F713-15KT-B5-G2 mechanical power transmission f713-15kt-b5-g2 2130 RFQ
50B23-1+3 16 mechanical power transmission finished bore sprocket 50 / 5/8 in, finished w/ keyway, 1.1875 in bore , 23 teeth, steel material 2004 RFQ
50B28 1-1 4 mechanical power transmission finished bore sprocket 50 / 5/8 in, finished w/ keyway, 1.2500 in bore , 28 teeth, steel material 1816 RFQ
UJNL 20-23 mechanical power transmission ujnl 20-23, pin or block u-joint, joint type: single joint, bored, max. misalignment angle: 35°, steel, oal: 5-1/2" 2900 RFQ
EFMC-6 pneumatics efmc-6 2284 RFQ
X721-6-20-5 mechanical power transmission x721-6-20-5 1715 RFQ
40B22-1 mechanical power transmission boston gear 40b22-1 spkt(old#hksb22-1) 1292 RFQ
721-60-J mechanical power transmission right angle worm gear speed reducer single reduction, 60:1 ratio, 2.06 in center distance, solid shaft, 0.6250 in input size, right hand output 2949 RFQ
HF721-20-B5-H-P14 mechanical power transmission hf721-20-b5-h-p14 2134 RFQ
35B19-3 4 mechanical power transmission finished bore sprocket 35 / 3/8 in, finished w/ keyway, 0.7500 in bore , 19 teeth, steel material 2198 RFQ
M2840-52 bearings plain sleeve bearing 1.7500 in id, 2.5000 in od, 6.5000 in length, leaded-tin bronze material 1735 RFQ
RF721-15-B5-G mechanical power transmission right angle worm gear speed reducer solid shaft, 0.6250 in input size, left hand output 2144 RFQ
XR146-2YR mechanical power transmission miter gear 1558 RFQ
M3642-40 bearings plain sleeve bearing 2.2500 in id, 2.6250 in od, 5.0000 in length, leaded-tin bronze material 1843 RFQ
NJ24A mechanical power transmission external tooth spur gear 6 dp, 14.5 ° pressure angle, 1-1/2 in face, 24 teeth, 4.333 in outside diameter, rough stock, 1-1/8 in bore, hub without keyway or set screw, steel material 1047 RFQ
3211D 5 8 material handling 3211d-5/8, roll end plain bearing, 5/8""round bore, 2""width, 3.76""outside diameter, straight 2502 RFQ
25B12 mechanical power transmission stock bore sprocket 25 / 1/4 in, 12 teeth, 0.3125 in stock bore, steel material 2697 RFQ
SBKCFWC726-200P-B5-J mechanical power transmission sbkcfwc726-200p-b5-js 2678 RFQ
HFL-10G bearings female threaded left hand rod end grade: precision, bore diameter: 0.6250 in, shank thread size: 5/8-18 in, with lubrication fitting 2970 RFQ

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