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Belt Tensioners & Idlers

Belt tensioners and idlers are critical components in power transmission systems, ensuring proper tension and alignment of belts to maintain optimal performance and prevent premature wear. These devices, which include spring-loaded arms with pulleys or idler wheels, are used in various industrial applications, such as automotive engines, conveyor systems, and machinery, to maintain the efficiency and reliability of power transmission systems.
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#40397
30219800
Boston Gear 30219800 G1214 brass pulley for power transmission applications. This component is designed for use in general industrial drives and machinery where corrosion resistance and low friction are required. The brass construction provides durability and smooth operation in light-duty applications.
Brand Boston Gear
Model 30219800
$37.31 Each
Free shipping
#40398
30219801
Boston Gear 30219801 G1215 brass pulley for power transmission applications. Constructed from brass for corrosion resistance and smooth operation. Suitable for light-duty drives and indexing systems.
Brand Boston Gear
Model 30219801
$40.12 Each
Free shipping
#40399
30219802
Boston Gear 30219802 G1216 brass pulley for power transmission applications. Constructed from brass for corrosion resistance and durability in light-duty drives. This pulley is suitable for use in general industrial machinery, conveyors, and other mechanical systems requiring a compact, non-ferrous pulley component.
Brand Boston Gear
Model 30219802
$67.59 Each
Free shipping
#40400
30219803
Boston Gear 30219803 G1217 brass pulley for power transmission applications. This pulley features a 1.2-inch outside diameter and a 3/8-inch bore, suitable for light-duty drives requiring corrosion resistance.
Brand Boston Gear
Model 30219803
$60.64 Each
Free shipping
#40401
30219804
Boston Gear 30219804 G1218 brass pulley for power transmission applications. Constructed from brass for corrosion resistance and smooth operation. Suitable for light-duty drives and indexing systems.
Brand Boston Gear
Model 30219804
$97.29 Each
Free shipping
#40402
30219805
Boston Gear 30219805 G1219 brass pulley for power transmission applications. This component is designed for use in various industrial drives and machinery where corrosion resistance and low friction are required. The brass construction provides durability and reliable performance in light-duty applications.
Brand Boston Gear
Model 30219805
$111.39 Each
Free Shipping orders over $100
#40403
30219806
Boston Gear 30219806 G1220 brass pulley for power transmission applications. This pulley features a 1.5-inch outside diameter and is constructed from brass for corrosion resistance and durability. Suitable for light-duty drives and indexing systems.
Brand Boston Gear
Model 30219806
$151.19 Each
Free Shipping orders over $100
#40404
30219809
Boston Gear 30219809 G1202 steel V-belt pulley for power transmission applications. This pulley is constructed from steel for durability and reliable performance in industrial drives.
Brand Boston Gear
Model 30219809
$51.84 Each
Free shipping
#40405
30219810
Boston Gear 30219810 G1203 steel V-belt pulley for power transmission applications. This single-groove pulley is constructed from steel for durability and reliable performance in industrial drives.
Brand Boston Gear
Model 30219810
$101.88 Each
Free Shipping orders over $100
#40406
30219811
Boston Gear 30219811 G1204 steel V-belt pulley for power transmission applications. This single-groove pulley is manufactured from steel for durability and reliable performance in industrial drives.
Brand Boston Gear
Model 30219811
$113.21 Each
Free Shipping orders over $100
#40407
30219812
Boston Gear 30219812 G1205 cast iron pulley for power transmission applications. The pulley features a 5-inch outside diameter and a 1-inch bore, suitable for belt-driven systems in general industrial machinery.
Brand Boston Gear
Model 30219812
$156.12 Each
Free Shipping orders over $100
#40408
30219813
Boston Gear 30219813 G1206 cast iron pulley for power transmission applications. This single-groove pulley features a 1.5-inch bore and is designed for use with V-belts in general industrial drives. The cast iron construction provides durability and wear resistance for continuous-duty service.
Brand Boston Gear
Model 30219813
$203.60 Each
Free Shipping orders over $100
#40409
30219814
Boston Gear 30219814 G1207 cast iron pulley for power transmission applications. This pulley is designed for use with belts in general industrial drives. Weighs 2.1 lb.
Brand Boston Gear
Model 30219814
$215.65 Each
Free Shipping orders over $100
#40410
30219815
Boston Gear 30219815 G1208 cast iron pulley for power transmission applications. This pulley is designed for use with belts in general industrial drives.
Brand Boston Gear
Model 30219815
$213.45 Each
Free Shipping orders over $100
#817711
B1265
Fenner B1265 B-LOC keyless bushing tensioner bracket for 3-15 series. Provides adjustable tensioning for belt and chain drives. Constructed from durable steel for reliable performance in industrial power transmission applications.
Brand Fenner Industrial Motion
Model B1265
$23.11 Each
Free shipping
#832486
650X750IDL
TB Woods 650X750IDL idler pulley with 6.50" outside diameter and 7.50" face width. Designed for use in belt drive systems to guide or tension belts. Constructed from durable materials for industrial power transmission applications.
Brand TB Woods
Model 650X750IDL
$949.41 Each
Free Shipping orders over $100
#833311
650X425IDL
TB Woods 650X425IDL idler pulley with 6.50" outside diameter and 4.25" finished bore. Designed for use in belt drive systems to guide or tension belts. Cast-iron construction for industrial applications.
Brand TB Woods
Model 650X425IDL
$928.59 Each
Free Shipping orders over $100
#833334
650X175IDL
TB Woods 650X175IDL idler pulley with 6.50" outside diameter and 1.75" bore. Designed for use in belt drive systems to guide or tension belts. Constructed for industrial power transmission applications.
Brand TB Woods
Model 650X175IDL
$689.11 Each
Free Shipping orders over $100
#833355
650X275IDL
TB Woods 650X275IDL idler pulley with 6.50" outside diameter and 2.75" face width. Designed for use in belt drive systems to guide or tension belts. Constructed from durable materials for reliable performance in industrial power transmission applications.
Brand TB Woods
Model 650X275IDL
$1,079.59 Each
Free Shipping orders over $100
#833681
650X575IDL
TB Woods 650X575IDL idler pulley with 6.50" outside diameter and 5.75" bore. Designed for use in belt drive systems to guide or tension belts. Constructed for industrial power transmission applications.
Brand TB Woods
Model 650X575IDL
$890.43 Each
Free Shipping orders over $100
#834528
425X200IDL
TB Woods 425X200IDL idler pulley with 4.25" outside diameter and 2.00" finished bore. Designed for use as a non-powered idler in belt drive systems to maintain belt tension or change belt path. Cast-iron construction for durability in industrial applications.
Brand TB Woods
Model 425X200IDL
$493.16 Each
Free Shipping orders over $100
#835179
425X400IDL
TB Woods 425X400IDL idler pulley with 4.25" outside diameter and 4.00" finished bore. Designed for use as a non-powered idler in belt drive systems to maintain tension or change belt path.
Brand TB Woods
Model 425X400IDL
$499.37 Each
Free Shipping orders over $100
#837278
425X300IDL
TB Woods 425X300IDL idler pulley with 4.25" outside diameter and 3.00" bore. Designed for use in belt drive systems to guide or tension belts. Cast-iron construction for durability in industrial power transmission applications.
Brand TB Woods
Model 425X300IDL
$880.87 Each
Free Shipping orders over $100
#2168038
RSRA1590LO
INA RSRA1590LO Idler pulley
Brand INA Bearing
Model RSRA1590LO
$70.88 Each
Free shipping
#2168039
RSRA16129LO
INA RSRA16129LO Idler pulley
Brand INA Bearing
Model RSRA16129LO
$71.44 Each
Free shipping
#2168040
RSRB1592LO
INA RSRB1592LO Idler pulley
Brand INA Bearing
Model RSRB1592LO
$70.88 Each
Free shipping
#2168041
RSRB16117LO
INA RSRB16117LO Idler pulley
Brand INA Bearing
Model RSRB16117LO
$55.38 Each
Free shipping
#2168042
RSRB16222LO
INA RSRB16222LO Idler pulley
Brand INA Bearing
Model RSRB16222LO
$134.60 Each
Free Shipping orders over $100
#2168043
RSRD25150LO
INA RSRD25150LO Idler pulley
Brand INA Bearing
Model RSRD25150LO
$112.63 Each
Free Shipping orders over $100
#2283465
1297001
Browning NAK25 IDLER 1297001 V-belt idler pulley with a 2.5-inch outside diameter and a single groove for A or 4L section belts. Cast iron construction for guiding or tensioning V-belts in industrial belt drives. Genuine Browning component from Regal Rexnord.
Brand Browning
Model 1297001
Obsolete
#2283466
1297019
Browning NAK30 IDLER 1297019 V-belt idler pulley with a 3.05-inch outside diameter and three grooves for A or 4L section belts. Used to guide or tension V-belts in industrial drives. Genuine Browning component from Regal Rexnord.
Brand Browning
Model 1297019
Obsolete
#2283468
1297035
Browning NBK40 IDLER 1297035 V-belt idler pulley with a 3.95-inch outside diameter, designed for 5L or B section belts and featuring 4 grooves. Used to maintain belt tension or change belt direction in industrial belt drives. Genuine Browning component from Regal Rexnord.
Brand Browning
Model 1297035
Obsolete
#2283469
1297043
Browning NBK52 IDLER 1297043 V-belt idler pulley with a 4.95-inch outside diameter and two grooves for B or 5L section belts. Used to guide and tension V-belts in industrial drives, reducing belt whip and ensuring proper alignment. Genuine Browning component from Regal Rexnord.
Brand Browning
Model 1297043
$148.01 Each
Free Shipping orders over $100
#2888965
2778322
Browning IDLER SHEAVE CLEAR PK 1-groove steel idler sheave with a 0.375-inch finished bore and 5-inch outside diameter. Accommodates 5L, B, 5V, and C belt sections for use in fractional-horsepower and variable-pitch applications. Steel construction provides durability for belt tensioning and drive alignment in industrial and HVAC systems.
Brand Browning
Model 2778322
$44.31 Each
Free shipping
#6428039
C5-R-36-R
Flexco C5-R-36-R return idler for conveyor belts 36 in wide. CEMA C5 rated for medium-duty bulk handling applications. Steel construction with sealed bearings for reliable belt support on the return side.
Brand Flexco
Model C5-R-36-R
$0.00 Each
Free shipping
#6428040
C5-TE-36-R
Flexco C5-TE-36-R belt idler is a CEMA C5 carrying idler designed for 36 in belt width. This idler supports the load side of the conveyor belt in medium- to heavy-duty bulk handling applications.
Brand Flexco
Model C5-TE-36-R
$0.00 Each
Free shipping
#6428041
C5-TEI-24-R
Flexco C5-TEI-24-R impact central idler for 24 in belt width. CEMA C5 rated for medium-duty bulk handling applications. Steel construction with rubber impact rings to absorb shock at loading zones.
Brand Flexco
Model C5-TEI-24-R
$0.00 Each
Free shipping
#6428042
C5-R-24-R
Flexco C5-R-24-R return idler for conveyor belt systems. Designed for 24 in belt width with CEMA C5 rating. Steel construction for medium-duty bulk handling applications.
Brand Flexco
Model C5-R-24-R
$0.00 Each
Free shipping
#6428043
C5-35TE-24
Flexco C5-35TE-24 carrying idler station frame for 24 in belt width. CEMA C5 rated for medium-duty bulk handling applications. Steel construction with 35 degree trough angle.
Brand Flexco
Model C5-35TE-24
$0.00 Each
Free shipping
#6428044
C5-TEI-42-R
Flexco C5-TEI-42-R impact central idler for belt widths of 42 inches. CEMA C5 rated for medium-duty conveyor applications. Steel construction with rubber impact rings to absorb shock at load zones.
Brand Flexco
Model C5-TEI-42-R
$0.00 Each
Free shipping
#6428045
C5-TE-42-R
Flexco C5-TE-42-R carrying central idler for 42 in belt width. CEMA C5 rated for medium-duty conveyor applications. Steel construction with sealed bearings.
Brand Flexco
Model C5-TE-42-R
$0.00 Each
Free shipping
#6428046
C5-R-42-R
Flexco C5-R-42-R return belt idler for 42 in belt width. CEMA C5 rated for medium-duty conveyor applications. Steel construction with sealed bearings for reliable performance in bulk handling environments.
Brand Flexco
Model C5-R-42-R
$0.00 Each
Free shipping
#6428116
CA0200x062kw
CONGRESS CA0200x062kw Fixed Bore Zinc 1 Groove 2" Outside Dia For 4L/A Belt Section 5/8th Bore Standard V Belt Pulley
Brand MRO Supply
Model CA0200x062kw
$16.55 Each
Free shipping
#6428117
ca0900x087kw
CONGRESS ca0900x087kw Fixed Bore Zinc 1 Groove 9" Outside Dia For 4L/A Belt Section 7/8 Bore Standard V Belt Pulley
Brand MRO Supply
Model ca0900x087kw
$94.78 Each
#95773258
780341
Bando 780341 accessory drive tensioner for power transmission belt systems. Designed to maintain proper belt tension in industrial drive applications. Constructed from durable materials for reliable performance.
Brand Bando
Model 780341
$43.95 Each
Free shipping
#95773294
780312
Bando 780312 accessory drive tensioner belt for power transmission applications. Designed for reliable tensioning in accessory drive systems. Constructed with durable materials for long service life.
Brand Bando
Model 780312
$59.96 Each
Free shipping
#95773298
780309
Bando 780309 accessory drive tensioner for power transmission belt systems. Designed to maintain proper belt tension in industrial drive applications. Constructed from durable materials for reliable performance and long service life.
Brand Bando
Model 780309
$61.05 Each
Free shipping
#95773312
780035
Bando 780035 accessory drive tensioner belt for industrial power transmission applications. Designed for reliable tensioning in accessory drive systems. Constructed with durable materials for long service life.
Brand Bando
Model 780035
$64.88 Each
Free shipping
#95773382
780236
Bando 780236 Power Transmission Belt is an accessory drive tensioner designed for industrial power transmission applications. This component ensures proper belt tension for reliable drive system performance.
Brand Bando
Model 780236
$78.59 Each
Free shipping
#95773489
780140
Bando 780140 accessory drive tensioner for power transmission belt systems. Designed to maintain proper belt tension in industrial and automotive drive applications. Constructed from durable materials for reliable performance and long service life.
Brand Bando
Model 780140
$101.53 Each
Free Shipping orders over $100
#95773549
780097
Bando 780097 accessory drive tensioner for power transmission belt systems. Designed to maintain proper belt tension in industrial and automotive serpentine drive applications. Constructed with durable materials for reliable performance and long service life.
Brand Bando
Model 780097
$141.62 Each
Free Shipping orders over $100
#95773569
780013
Bando 780013 accessory drive tensioner belt for power transmission applications. Designed for reliable tensioning in accessory drive systems. Constructed with durable materials for long service life.
Brand Bando
Model 780013
$164.52 Each
Free Shipping orders over $100
#95773574
780021
Bando 780021 accessory drive tensioner for power transmission belt systems. Designed to maintain proper belt tension in industrial drives, ensuring reliable operation and extended belt life. Compatible with Bando V-belts and synchronous belts.
Brand Bando
Model 780021
$163.55 Each
Free Shipping orders over $100
#95774046
680024
Bando 680024 heavy duty tensioner for power transmission belt systems. Designed to maintain proper belt tension in industrial drives, reducing slippage and extending belt life. Compatible with classical and narrow wedge V-belt drives.
Brand Bando
Model 680024
$140.33 Each
Free Shipping orders over $100
#95774050
680067
Bando 680067 heavy duty tensioner for power transmission belt systems. Designed to maintain proper belt tension in industrial drives, reducing slippage and extending belt life. Compatible with classical, narrow wedge, and synchronous belt applications. Robust construction for reliable performance in demanding environments.
Brand Bando
Model 680067
$142.72 Each
Free Shipping orders over $100
#95774057
680062
Bando 680062 heavy duty tensioner for power transmission belt systems. Designed to maintain proper belt tension in industrial drives, reducing slippage and extending belt life. Compatible with classical, narrow wedge, and synchronous belt applications.
Brand Bando
Model 680062
$146.21 Each
Free Shipping orders over $100
#95774068
680054
Bando 680054 heavy duty tensioner for power transmission belt systems. Designed to maintain proper belt tension in industrial drives, reducing slippage and extending belt life. Compatible with classical, narrow wedge, and synchronous belt applications.
Brand Bando
Model 680054
$158.21 Each
Free Shipping orders over $100
#95774070
680052
Bando 680052 heavy duty tensioner for power transmission belt systems. Designed to maintain proper belt tension in industrial drives, reducing slippage and extending belt life. Compatible with classical and narrow wedge V-belt applications.
Brand Bando
Model 680052
$160.09 Each
Free Shipping orders over $100
#95774400
780384
Bando 780384 power transmission belt designed for accessory drive tensioner applications. Constructed with high-quality materials for reliable performance in industrial drive systems.
Brand Bando
Model 780384
$71.85 Each
Free shipping
#95774407
780380
Bando 780380 Power Transmission Belt accessory drive tensioner. Designed for automotive and industrial accessory drive systems requiring precise belt tensioning. Constructed with durable materials for long service life. Compatible with Bando serpentine and V-belt drive systems.
Brand Bando
Model 780380
$89.81 Each
Free shipping