Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
APPROVED VENDOR Idler Sprocket: For 25 Chain Size, Single Strand, Steel, 19 Teeth - Needle Bearing Idler Sprockets with Hub
APPROVED VENDORNeedle Bearing Idler Sprockets with Hub

APPROVED VENDOR Idler Sprocket: For 25 Chain Size, Single Strand, Steel, 19 Teeth

The APPROVED VENDOR Idler Sprocket is a Needle Bearing Idler Sprocket with Hub designed for 25 Chain Size. It features a single-strand steel construction with 19 teeth and a 1/2-inch bore diameter (MPN 25B19-IDLER)…

SKU 3G-OTH-126108

Brand
APPROVED VENDOR
Item
Idler Sprocket: For 25 Chain Size, Single Strand, Steel, 19 Teeth
Category
Needle Bearing Idler Sprockets with Hub
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
25B19-IDLER
Type
Single Strand, Steel
Teeth
19
Bore Dia
1/2 in
Bearing Type
Needle Roller
Bore System of Measurement
Inch
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Idler Sprocket is a Needle Bearing Idler Sprocket with Hub designed for 25 Chain Size. It features a single-strand steel construction with 19 teeth and a 1/2-inch bore diameter (MPN 25B19-IDLER). The bearing type is Needle Roller, and the bore system of measurement is Inch.

Frequently Asked Questions

What is the APPROVED VENDOR Idler Sprocket used for?

The APPROVED VENDOR Idler Sprocket is used to guide and tension roller chain in power transmission systems. It is designed for 25 chain size, single-strand applications, and is commonly found in conveyor systems, packaging machinery, and light industrial equipment where precise chain routing is required.

What are the specifications of the APPROVED VENDOR Idler Sprocket?

This idler sprocket has 19 teeth, a 1/2-inch bore diameter, and a needle roller bearing type. It is made of steel, single-strand, with an inch bore system. The manufacturer part number is 25B19-IDLER. It is designed for 25 chain size and includes a hub for mounting.

Where to buy the APPROVED VENDOR Idler Sprocket worldwide?

You can source the APPROVED VENDOR Idler Sprocket (MPN 25B19-IDLER) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the APPROVED VENDOR Idler Sprocket?

To install, align the sprocket with the chain path and secure it using a bolt through the bore. Ensure the needle roller bearing is properly lubricated before use. Tighten to the manufacturer's recommended torque and verify chain tension to prevent premature wear.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR needle bearing idler sprockets with hub. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
APPROVED VENDOR Idler Sprocket: For 35-2 Chain Size, Double Strand, Steel, 19 Teeth, 1 in Bore Dia (MPN 35DB19-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 35-2 Chain Size, Double Strand, Steel, 19 Teeth, 1 in Bore Dia (MPN 35DB19-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 50-2 Chain Size, Double Strand, Steel, 17 Teeth, 1 in Bore Dia (MPN 50DB17-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 50-2 Chain Size, Double Strand, Steel, 17 Teeth, 1 in Bore Dia (MPN 50DB17-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 35 Chain Size, Single Strand, Steel, 13 Teeth, 1/2 in Bore Dia (MPN 35B13-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 35 Chain Size, Single Strand, Steel, 13 Teeth, 1/2 in Bore Dia (MPN 35B13-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 80-2 Chain Size, Double Strand, Steel, 13 Teeth, 1 in Bore Dia (MPN 80DB13-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 80-2 Chain Size, Double Strand, Steel, 13 Teeth, 1 in Bore Dia (MPN 80DB13-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 41 Chain Size, Single Strand, Steel, 19 Teeth, 1 in Bore Dia (MPN 41B19-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 41 Chain Size, Single Strand, Steel, 19 Teeth, 1 in Bore Dia (MPN 41B19-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 80 Chain Size, Single Strand, Steel, 13 Teeth, 1 in Bore Dia (MPN 80B13-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 80 Chain Size, Single Strand, Steel, 13 Teeth, 1 in Bore Dia (MPN 80B13-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.

More from APPROVED VENDOR

View all APPROVED VENDOR parts →
APPROVED VENDOR Idler Sprocket: For 100 Chain Size, Single Strand, Steel, 11 Teeth, Needle Roller (MPN 100B11-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 100 Chain Size, Single Strand, Steel, 11 Teeth, Needle Roller (MPN 100B11-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 40 Chain Size, Single Strand, Steel, 19 Teeth, 1 in Bore Dia (MPN 40B19-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 40 Chain Size, Single Strand, Steel, 19 Teeth, 1 in Bore Dia (MPN 40B19-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 40-2 Chain Size, Double Strand, Steel, 19 Teeth, 1 in Bore Dia (MPN 40DB19-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 40-2 Chain Size, Double Strand, Steel, 19 Teeth, 1 in Bore Dia (MPN 40DB19-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 35 Chain Size, Single Strand, Steel, 19 Teeth, 1 in Bore Dia (MPN 35B19-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 35 Chain Size, Single Strand, Steel, 19 Teeth, 1 in Bore Dia (MPN 35B19-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 50 Chain Size, Single Strand, Steel, 17 Teeth, 1 in Bore Dia (MPN 50B17-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 50 Chain Size, Single Strand, Steel, 17 Teeth, 1 in Bore Dia (MPN 50B17-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 120 Chain Size, Single Strand, Steel, 11 Teeth, Needle Roller (MPN 120B11-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 120 Chain Size, Single Strand, Steel, 11 Teeth, Needle Roller (MPN 120B11-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 140 Chain Size, Single Strand, Steel, 11 Teeth, Needle Roller (MPN 140B11-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 140 Chain Size, Single Strand, Steel, 11 Teeth, Needle Roller (MPN 140B11-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR Idler Sprocket: For 60 Chain Size, Single Strand, Steel, 17 Teeth, 1 in Bore Dia (MPN 60B17-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.
APPROVED VENDOR
APPROVED VENDOR Idler Sprocket: For 60 Chain Size, Single Strand, Steel, 17 Teeth, 1 in Bore Dia (MPN 60B17-IDLER). Key specifications — Bearing Type: Needle Roller; Brand: APPROVED VENDOR; Bore System of Measurement: Inch.