V-Belt Examples

Input Type: Exact Part Number

User input:

Find alternatives for AX42.

Captured fields:

Field	Value
identity.selected_part_number	AX42
belt_spec.belt_code	AX
belt_spec.belt_family	CLASSICAL
length.marking_system	INCH_CODE_LI_IN
length.basis	Li
length.source_length_symbol	Li
length.raw_length_string	42
length.matcher_length_value	42.0
length.matcher_length_anchor_key	`INCH_CODE_LI_IN
cross_section.top_width_mm	13.0
cross_section.thickness_mm	8.0

How to use it:

• AX42 is not just a generic A belt; AX carries cogged/classical construction meaning.
• The length basis is Li, so do not reinterpret 42 as outside or datum length.
• Exact part-number launch can still produce conditional or upgrade suggestions depending on policy.

Input Type: Profile + Length Basis

User input:

SPB belt, Ld 1900 mm, top width 16.3 mm, thickness 13 mm.

Captured fields:

Field	Value
belt_spec.belt_code	SPB
belt_spec.belt_family	NARROW
length.marking_system	ISO_METRIC_LD_MM
length.basis	Ld
length.source_length_symbol	Ld
length.raw_length_string	1900
length.matcher_length_value	1900.0
length.matcher_length_anchor_key	`ISO_METRIC_LD_MM
cross_section.top_width_mm	16.3
cross_section.thickness_mm	13.0

How to use it:

• This launches through belt code plus normalized matcher length.
• Ld is a datum/reference length basis; keep it separate from raw text.
• Ask for construction if wrapped/cogged distinction matters.

Input Type: Drive Requirements

User input:

Small pulley is 5.5 inches, 1750 RPM, 12.5 HP motor, service factor 1.4, high-cycle drive.

Captured fields:

Field	Value
requirements.small_pulley_diameter_in	5.5
requirements.rpm_small	1750
requirements.motor_hp	12.5
requirements.service_factor	1.4
requirements.application_criticality	HIGH_CYCLE

How to use it:

• Drive requirements can block candidates in safe mode.
• Do not treat a close length match as acceptable when drive requirements are not satisfied.