On request Illustrative image Mechanical Power Transmission - Martin Sprocket & Gear 31E20 - Martin Sprocket & Gear

MARTIN SPROCKET & GEAR 31E20

Name: MARTIN SPROCKET & GEAR 31E20
Brand: MARTIN SPROCKET & GEAR
SKU: 3.1E+21

#3.1E+21 On request

Category IDLER ROLLER CHAIN SPROCKETS

Part Number 3.1E+21

Idler Roller Chain Sprocket - Steel Material, 31 Chain, 0.3750 in Pitch, 0.5000 in Bore, 20 Teeth, Hardened Teeth, 1.4680 in Hub Diameter

Price on request — a consultant will confirm lead time and terms.

Talk to a technical consultant

MARTIN SPROCKET & GEAR — MARTIN SPROCKET & GEAR 31E20

Martin idlers are smooth-running and available in oil-impregnated, sintered bronze, extra-duty bearing press-fitted in sprocket and a hardened steel journal case for maximum resistance to wear.
Steel sprockets used in Martin idlers are accurately machined (not stamped) the same as sprockets normally supplied for power transmission use.
Martin can also alter existing sprockets and install bearings to make custom idlers.
Can be used to change the direction of chain motion or to adjust chain tension

Brand	MARTIN SPROCKET & GEAR
Category	IDLER ROLLER CHAIN SPROCKETS
Bore diameter	0.5 in
Hub diameter	1.468 in
Number of teeth	20
Chain roller diameter	0.2 in
Pitch	0.375 in
Chain roller width	0.1875 in
Outside diameter	2.6 in
Caliper diameter	2.221 in
Length through bore	0.75 in
Tooth thickness	0.168 in
Sprocket material	Steel
Surface treatment	Protective Coating
Chain number	31
Radial load capacity	50 @ 2,500 RPM lb
Chain number & pitch	31 / 3/8 in
Storage dimension height	1.0625 in
Chain / sprocket type	Idler
Storage dimension width	2.75 in
Bearing type	Bronze Bushing
Storage dimension length	2.75 in
Bearing material	Oil-Impregnated Sintered Bronze
Additional details	Chain Tightener Part #E5006
Bore type	Bearing
Includes	Chain Tightener Part #E5006
Hardened teeth	Hardened Teeth
Weight	0.45 lbs
Number of strands across	1
Manufacturer upc number	697950063980
Pitch diameter	2.355 in