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Kendrion

INTORQ BFK551 size 01 holding version (configurable size)

Model / article: INTORQ BFK551 size 01 holding version (configurable size)

INTORQ BFK551 size 01 holding version (configurable size) is listed by Kendrion in Spring-applied brakes. Published model data includes Brake axial length L: 31.1 mm; Brake bore diameter d: 5 / 6 mm. See the specification table for operating conditions and source evidence.

Manufacturer-published holding-version sizes. Brochure ratings only; not productfinder ID 33008169. Emergency-stop count withheld due to source conflict. No verified SIL/PL or dual-channel claim.

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Product overview

Manufacturer / supplier
Kendrion
Series
INTORQ BFK551 holding brakes / INTORQ BFK551 size 01 holding version (configurable size)
Component type
Spring-applied brakes
Source
Open published source

Published pricing

No verified public price indexed for this model. Contact PartMeld for a supplier inquiry.

Published specifications

Values are shown as published. Conditions, rating basis and source evidence apply to each value.

Latest source observation: . Observation dates record evidence collection, not supplier re-verification.

Specifications and source evidence for INTORQ BFK551 size 01 holding version (configurable size)
SpecificationPublished valueConditions and source
Brake axial length LModel-level statement31.1 mm

rule validated

Operating conditions
dimension
h in mounting drawings; not l, l2 or l3
Source evidence
Axial height h: 31.1 mm

BFK551 brochure ©18.11.2025 printed p.7 / INTORQ BFK551 size 01 holding version (configurable size) / Axial height h

Source observed: 2026-09-19View source
Brake bore diameter dModel-level statement5 / 6 mm

rule validated

Operating conditions
options mm
[5,6]
scope
discrete configurable options, not continuous range
tolerance
H7
Source evidence
Hub bore d H7 options: 5 / 6 mm

BFK551 brochure ©18.11.2025 printed p.7 / INTORQ BFK551 size 01 holding version (configurable size) / Hub bore d H7 options

Source observed: 2026-09-19View source
Braking torque at stated speedModel-level statement0.24 N·m

rule validated

Operating conditions
scope
published torque at 100 rpm, not a static torque claim
speed rpm
100
version
holding brake; not operating/service brake lining
Source evidence
Rated torque for holding brakes @100 min-1: 0.24 N·m

BFK551 brochure ©18.11.2025 printed p.6 / INTORQ BFK551 size 01 holding version (configurable size) / Rated torque for holding brakes @100 min-1

Source observed: 2026-09-19View source
Temperature classModel-level statementF (155°C)

rule validated

Operating conditions
scope
insulation class; not ambient temperature rating
Source evidence
Thermal class: F (155°C)

BFK551 brochure ©18.11.2025 printed p.6 / INTORQ BFK551 size 01 holding version (configurable size) / Thermal class

Source observed: 2026-09-19View source
Brake operationModel-level statementSpring-applied, electromagnetically released holding brake with emergency-stop function. Standard ambient -20 to +40 °C; 100% ED. Select housing/flange mounting and hub bore; hand release only sizes 03–05.

rule validated

Operating conditions
elevated temperature
not indexed; manual requires additional conditions
scope
configurable holding version; not a complete ordering code
Source evidence
Operation and configuration: Spring-applied, electromagnetically released holding brake with emergency-stop function. Standard ambient -20 to +40 °C; 100% ED. Select housing/flange mounting and hub bore; hand release only sizes 03–05.

BFK551 brochure ©18.11.2025 printed p.6 / INTORQ BFK551 size 01 holding version (configurable size) / Operation and configuration

Source observed: 2026-09-19View source
Release excitation voltageModel-level statement24 V

rule validated

Operating conditions
scope
standard option; other voltages not enumerated as models
Source evidence
Standard rated voltage: 24 V

BFK551 brochure ©18.11.2025 printed p.6 / INTORQ BFK551 size 01 holding version (configurable size) / Standard rated voltage

Source observed: 2026-09-19View source
Permissible braking workModel-level statement200 JRating: maximum

rule validated

Operating conditions
scope
single switching event; not continuous heat dissipation or lifetime work
Source evidence
Shifting work for single shift Wmax: 200 J

BFK551 brochure ©18.11.2025 printed p.6 / INTORQ BFK551 size 01 holding version (configurable size) / Shifting work for single shift Wmax

Source observed: 2026-09-19View source
Maximum output speedModel-level statement5000 rpmRating: maximum

rule validated

Operating conditions
scope
subject to permissible emergency-stop switching work; assess application
Source evidence
Maximum speed nmax: 5000 rpm

BFK551 brochure ©18.11.2025 printed p.6 / INTORQ BFK551 size 01 holding version (configurable size) / Maximum speed nmax

Source observed: 2026-09-19View source
Outer diameterModel-level statement37 mm

rule validated

Source evidence
Outer diameter d4: 37 mm

BFK551 brochure ©18.11.2025 printed p.7 / INTORQ BFK551 size 01 holding version (configurable size) / Outer diameter d4

Source observed: 2026-09-19View source

Technical documents and resources

Confirm the exact configuration, price, availability and operating conditions with the supplier before ordering.

Report a specification error